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| general description the ITMS4037 intelligent temperature to modbus? conditioner with alarms accepts a wide range of temperature sensors (thermocouple and rtd elements), and converts the signal into a register format that can be read using either ascii or rtu modbus protocol. the itms allows a choice of either fahrenheit or celsius readout with 0.1 or 1 degree of resolution. an offset value can be programmed to scale the input signal to meet most process requirements. additionally, two setpoint values can be entered for dual relay process monitoring alarms. the itms is programmed with windows? based sfims software. the software allows configuration, calibration, and storage of itms program files. additionally, all setup parameters can be interrogated and modified through modbus register and coil commands. the rs485 port allows the itms to be multidropped, with baud rates up to 38400. the cbpro007 programming cable converts the rs232 port of a pc to rs485, and is terminated with an rj-11 connector. the bidirectional capability of the cbpro007 allows it to be used as a permanent interface cable as well as a programming cable. the itms?s two relay alarms can be configured independently for absolute high or low acting with balanced or unbalanced hysteresis. alarm 2 can also be configured for deviation and band alarms. in these modes, setpoint 2 tracks setpoint 1. adjustable alarm trip delays can be used for delaying output response. the alarms can be programmed for automatic or latching. latched alarms can be reset with a serial command or a user input. a standby feature suppresses the alarm during power-up until the temperature stabilizes outside the alarm region. standby eliminates power-up tripping for low acting alarms. a user input can be used to set and reset non-latching alarms. the output relays can also be manually controlled with register commands. the module?s high density packaging and din rail mounting saves time and panel space. the module is equipped with a universal mounting foot for attachment to standard din rails, including top hat (t) profile or g profile rail. safety summary all safety related regulations, local codes and instructions that appear in the manual or on equipment must be observed to ensure personal safety and to prevent damage to either the instrument or equipment connected to it. if equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired. 1 o temperature to modbus conversion o accepts thermocouple, rtd, mv or resistance signals o processor based scaling o pc configuration software o dual setpoint relay alarms o four way signal isolation model itms - intelligent temperature to modbus conditioner w/ alarms model itms description temperature to modbus conditioner w/alarms part number ITMS4037 cbpro sfims programming interface cable pc configuration software for windows cbpro007 sfims cbj cable rj11 to unterminated 7 foot length cbj11a07 rj connector to terminal adapter cable rj11 to rj11 6 inch jumper drrj11t6 cbj11bd5 ordering information dimensions in inches (mm) caution: read complete instructions prior to installation and operation of the unit. caution: risk of electric shock. bulletin no. itms-b drawing no. lp0494 released 1/07 tel +1 (717) 767-6511 fax +1 (717) 764-0839 www.redlion.net ul recognized component, file # e179259
2 specifications 1. power : 18-36 vdc, 3.0 w max. or 24 vac, 10%, 50/60 hz, 4 va max. 2. input : sample rate: 67 msec. (15 hz) failed sensor response: open or shorted (rtd only) sensor coils indication, error code returned in process value common mode rejection: 50/60 hz, 110 db min. overvoltage: 30 vdc response time: 150 msec. max. 3. thermocouple inputs : types: t, e, j, k, r, s, b, n, c, linear mv input impedance: 20 m ? lead resistance effect: 0.22 v/ ? resolution: 1 or 0.1 for all types 4. rtd inputs : type: 2 or 3 wire excitation: 150 a lead resistance: 10 ? max. resolution: 1 or 0.1 for all types 5. indication accuracy : (0.3% of span, +1c), includes nist conformity, cold junction effect, a/d conversion errors, tempco and linearization conformity at 23c after 20 minute warm-up. span drift (max) : 0.01% /c 6. user input : internally pulled up to +5 vdc. v il = 0.78 v max., v ih = 1.8 v min. i off = 9 a max. 30 v max. over voltage continuously. 7. isolation level : 1.5 kv @ 50/60 hz, 1 minute (150 v working) between input, rs485 and power supply. 2300 vrms, 1 minute (300 v working) to relay contacts. 8. serial communications : type: rs485; rtu and ascii modbus modes baud: 300, 600, 1200, 2400, 4800, 9600, 19200, and 38400 format: 7/8 bit, odd, even and no parity transmit delay: programmable. (see transmit delay explanation in step 6) transmit enable (txen): (primarily for 20 ma loop converter) open collector v oh = 10 vdc max. v ol = 0.5 vdc @ 5 ma max. current limit 9. a/d converter : 16 bit resolution 10. relay outputs : type: 1 form a n.o. contacts, 1 form c dpdt rating: 5a @ 30 vdc or 250 vac max. (resistive) 1/10 hp @ 120 vac (inductive) response time: 155 msec. max. to close including step response, 153 msec. max. to open. output on delay time: programmable from 0 to 32000 sec 0.01% - 1 sec. max. 11. memory : nonvolatile e 2 prom retains all programmable parameters. 12. environmental conditions : operating temperature range: -20 to +65 c storage temperature range: -40 to +85 c operating and storage humidity: 85% max. relative humidity (non- condensing) from -20 to +65 c altitude: up to 2000 meters 13. certifications and compliance : safety ul recognized component, file # e179259, ul3101-1, csa 22.2 no. 1010-1 recognized to u.s. and canadian requirements under the component recognition program of underwriters laboratories, inc. iecee cb scheme test certificate # us/5141a/ul, cb scheme test report # 01me11540-0702001 issued by underwriters laboratories, inc. iec 1010-1, en 61010-1: safety requirements for electrical equipment for measurement, control, and laboratory use, part 1. electromagnetic compatibility notes: 1. this device was designed for installation in an enclosure. to avoid electrostatic discharge to the unit in environments with static levels above 6 kv, precautions should be taken when the device is mounted outside an enclosure. when working in an enclosure (ex. making connections, etc.), typical anti-static precautions should be observed before touching the module. refer to the emc installation guidelines section of this bulletin for additional information. 14. construction : case body is black high impact plastic. installation category ii, pollution degree 2. 15. connections : wire clamping screw terminals. 16. mounting : universal mounting foot for attachment to standard din style mounting rails, including top hat (t) profile rail according to en50022 - 35 x 7.5 and -35 x 15, and g profile rail according to en50035 - g32. 17. weight : 4.5 oz. (127.57 g) power mains class a enclosure class a en 55011 rf interference emissions to en 55011 level 3; 10 v/m env 50204 simulation of cordless telephone 150 khz - 80 mhz level 3; 10 v/rms en 61000-4-6 rf conducted interference level 3; 2 kv power level 4; 2 kv i/o en 61000-4-4 fast transients (burst) 80 mhz - 1 ghz level3; 10 v/m en 61000-4-3 electromagnetic rf fields level 3; 8 kv air 1 level 2; 4 kv contact en 61000-4-2 electrostatic discharge 200 hz, 50% duty cycle immunity to en 50082-2 900 mhz 5 mhz block diagram rtd type input type range 385 100 ? platinum, alpha=.00385 -200 to +800c -328 to +1472f 392 100 ? platinum, alpha=.003919 -200 to +800c -328 to +1472f 672 120 ? nickel, alpha=.00672 -80 to +260c -112 to +500f ohms linear resistance 0 to 440 ? tc type display range wire color ansi bs 1843 t -200 to +400c -328 to +752f (+) blue (-) red (+) white (-) blue e -200 to +750c -328 to +1382f (+) violet (-) red (+) brown (-) blue j -200 to +760c -328 to +1400f (+) white (-) red (+) yellow (-) blue k -200 to +1372c -328 to +2502f (+) yellow (-) red (+) brown (-) blue r 0 to +1768c +32 to +3214f no standard (+) white (-) blue s 0 to +1768c +32 to +3214f no standard (+) white (-) blue b +200 to +1820c +392 to +3308f no standard no standard n -200 to +1300c -328 to +2372f (+) orange (-) red (+) orange (-) blue c w5/w26 0 to +2315c +32 to +4199f no standard no standard mv -10 mv to 65 mv na na 3 module isolation the itms features ?4-way? signal isolation. the 4-way isolation is a combination of optical, transformer and relay barriers, providing common mode voltage (cmv) isolation to 1.5 kv for 1 minute between input, rs485, and power supply. isolation between relay contacts and all other inputs is 2300 vrms for 1 minute. led functionality condition green led 2 red leds power applied on ??? communication received flashing ??? respective alarm on on checksum error flashing flashing calibration off on emc installation guidelines although this module is designed with a high degree of immunity to electro- magnetic interference (emi), proper installation and wiring methods must be followed to ensure compatibility in each application. the type of the electrical noise, source or coupling method into the unit may be different for various installations. cable length, routing, and shield termination are very important and can mean the difference between a successful or troublesome installation. listed below are some emc guidelines for successful installation in an industrial environment. 1. use shielded (screened) cables for all signal and control inputs. the shield (screen) pigtail connection should be made as short as possible. the connection point for the shield depends somewhat upon the application. listed below are the recommended methods of connecting the shield, in order of their effectiveness. a. connect the shield only at the rail where the unit is mounted to earth ground (protective earth). b. connect the shield to earth ground at both ends of the cable, usually when the noise source frequency is above 1 mhz. c. connect the shield to common of the unit and leave the other end of the shield unconnected and insulated from earth ground. 2. never run signal or control cables in the same conduit or raceway with ac power lines, conductors feeding motors, solenoids, scr controls, and heaters, etc. the cables should be run in metal conduit that is properly grounded. this is especially useful in applications where cable runs are long and portable two-way radios are used in close proximity or if the installation is near a commercial radio transmitter. 3. signal or control cables within an enclosure should be routed as far away as possible from contactors, control relays, transformers, and other noisy components. 4. in extremely high emi environments, the use of external emi suppression devices, such as ferrite suppression cores, is effective. install them on signal and control cables as close to the unit as possible. loop the cable through the core several times or use multiple cores on each cable for additional protection. install line filters on the power input cable to the unit to suppress power line interference. install them near the power entry point of the enclosure. the following emi suppression devices (or equivalent) are recommended: ferrite suppression cores for signal and control cables: fair-rite # 0443167251 (rlc # fcor0000) tdk # zcat3035-1330a steward # 28b209-0a0 line filters for input power cables: schaffner # fn610-1/07 (rlc # lfil0000) schaffner # fn670-1.8/07 corcom # 1 vr3 note: reference manufacturer?s instructions when installing a line filter. 5. long cable runs are more susceptible to emi pickup than short cable runs. therefore, keep cable runs as short as possible. 4 wiring connections all conductors should meet voltage and current ratings for each terminal. also, cabling should conform to appropriate standards of good installation, local codes and regulations. when wiring the module, use the numbers on the label to identify the position number with the proper function. strip the wire, leaving approximately 1/4" (6 mm) of bare wire exposed. insert the wire into the terminal, and tighten the screw until the wire is clamped tightly. (pull wire to verify tightness.) each terminal can accept up to one #14 awg (2.55 mm), two #18 awg (1.02 mm), or four #20 awg (0.61 mm) wires. module power connections ac module power is connected to terminals 1 and 2. dc module power is connected with (+) to terminal 1 and (-) to terminal 2. for best results, the power should be relatively ?clean? and within the specified limits. drawing power from heavily loaded circuits or from circuits that also power loads that cycle on and off should be avoided. it is recommended that power supplied to the module be protected by a fuse or circuit breaker. input connections thermocouple input thermocouple leads are connected to terminals 11 (+) and 12 (-). rtd input for 3-wire rtd elements, connect the sense leads to terminals 11 and 12. the excitation lead is connected to terminal 10 (exc). for 2-wire rtd elements, connect the sense leads to terminals 11 and 12. install a copper sense lead of the same gauge and length as the rtd leads. attach one end of the wire at the probe and the other end to terminal 10. complete lead wire compensation is obtained. this is the preferred method. if a sense wire is not used, then terminal 11 should be shorted to terminal 10. a temperature offset error will exist. the error may be compensated by programming a temperature offset. relay output connections relay 1 relay 1 is a form a output relay. wiring is connected between terminal 9 (comm.) common and terminal 8 (n.o.) the normally open contact. relay 2 relay 2 is a form c output relay. wiring is connected between terminal 4 (comm.) common and either terminal 5 (n.o.), the normally open contact, or terminal 3 (n.c.), the normally closed contact. to prolong contact life and suppress electrical noise interference due to the switching of inductive loads, it is good installation practice to install a snubber across the contacts. follow the manufacturer?s instructions for installation. note: snubber leakage current can cause some high impedance loads to be held on. default serial setting connection if the itms settings are unknown, or forgotten, they can be reset to the factory defaults by connecting the serial default terminal 7 to input comm. terminal 12 with a jumper, and then cycling power. defaults: user input connection the user input is activated when terminal 6 is pulled low (connected to input comm. terminal 12). rs485 serial connections there are two rj-11 connectors located on the bottom for paralleling communications. for single device communications, either connector can be used. when used in conjunction with red lion control paradigm hmi products, reverse a+ and b- wiring. rj11 itms 1 not used 2b- 3a+ 4 comm 5 txen 6 2345 not used itms connector step 1 wiring the module step 2 installing sfims (software for intelligent modules) insert the sfims diskette into the a: or b: drive. then run a:\setup (or b:\setup) to install rlcpro onto the hard drive. an icon labeled rlcpro will be created under the group rlcpro. protocol: rtu 8 data bits: address: 247 none parity: baud rate: 9600 5 step 3 programming - getting started run rlcpro by double-clicking the icon, or use the start menu. use the file pull-down menu to select a new file. you will be prompted to select the proper device, and then the model. step 4 programming the input the itms receives a temperature sensor input, converts it to a raw digital value, and stores this number in the adc value (regi ster 40001). this number is scaled into degrees, and a programmable offset value (register 40012), that can be used for sensor correction, is applied. t he result is stored as the temperature value (register 40002). it is also stored in the ieee 754 standard 32-bit floating decimal format (register 40003 a nd 40004). the non-scaled adc, the scaled process temperature value, or the floating point value may be accessed for the purpose of monitoring the input level. input signal register 40001 adc reading internal math offset process temperature value lo order byte hi order byte ieee standard 754 floating decimal point register 40003 register 40004 register 40012 register 40002 input type : select the proper input type from the pull down menu. scale : select fahrenheit or celsius. in linear millivolt or resistance modes, this has no effect. resolution : for thermocouple, rtd, or linear resistance modes, low resolution selects whole degrees or ohms. in these same modes, high resolution selects tenth of degrees or ohms. in linear mv mode, low selects hundredths of mv, and high selects thousandths of mv. offset : the offset value can be used as a sensor correction value. filter response : the filter response is a time constant, in tenth of second increments, that is used to stabilize an erratic input. the process value stabilizes to 99% of the final value within approximately 5 time constants. a value of ?0? disables digital filtering. filter band : filter band is a value expressed in temperature (degrees or tenths) units. when a fluctuating signal remains within the band value, the digital filter is active, and therefore stabilizes the process temperature value. when a fluctuating signal exceeds the filter band value, the digital filter is momentarily disabled to allow for quick response to valid process changes. once the signal variation is less than the filter band value, the digital filter is reactivated. 6 step 5 programming the alarms user input mode operation input action input activation automatic alarm latched alarm in alarm region outside alarm region in alarm region outside alarm region reset edge no action resets and puts the alarm in standby mode; resets alarm if in hysteresis band resets alarm if on set edge no action no action no action sets alarm latched reset level no action resets alarm while input is active, resumes normal operation when input is inactive; resets alarm if in hysteresis band resets alarm if on set level no action no action sets alarm latched resets and puts the alarm in standby mode; resets alarm if in hysteresis band action : alarm 1 can be programmed for 5 modes of operation, alarm 2 has 9 possible modes. see setpoint alarm figures for illustration. manual : in manual mode, the alarms are forced on and off by writing ?0? or ?1? to the appropriate modbus register (alarm 1 state = 40027, alarm 2 state = 40028). the alarms are configured for this action from the factory. in this mode, the alarms will not respond to their setpoint or hysteresis values. absolute hi: (with balanced or unbalanced hysteresis) the alarm energizes when the temperature value exceeds the setpoint limit value. absolute lo : (with balanced or unbalanced hysteresis) the alarm energizes when the temperature value falls below the setpoint limit value. deviation hi, deviation lo, band inside or outside : in these modes, alarm 2 ?tracks? alarm/setpoint 1. setpoint : the alarm setpoint value, entered in degrees. if the itms is programmed for mv or resistance modes, then the setpoint is in mv or ohms, respectively. hysteresis : hysteresis is used to eliminate output chatter. the hysteresis amount is the difference between the points where an alarm wil l turn on and turn off. in unbalanced modes, the alarm turns on at the setpoint, and turns off at setpoint minus hysteresis for hi alarms , and setpoint plus hysteresis for lo alarms. in balanced modes, the hysteresis is evenly divided above and below the setpoint value. (see the setp oint alarm figures.) note: the setpoint, along with the hysteresis, must not produce a ?trigger point? higher than 32,000, or less than -32,000. (see the setpoint alarm figures.) trigger points : trigger points are the process values where the alarm state changes. their values cannot be entered directly, but are shown a s a reference in the sfims software. the setpoint value, hysteresis value, and setpoint alarm type determine the trigger points. wi th deviation or band modes, setpoint 1 and setpoint 2 are combined to determine the trigger points. trigger points cannot be greater than +3200 0 or less than - 32000. if these limits are exceeded, the alarm is disabled and an alarm threshold over range error is set. the trigger points c an be outside the temperature value range for a given sensor type without receiving an error, but the alarm will not change state for that trigge r point. reset : the alarms can be programmed for automatic or latched. in automatic mode, an energized alarm turns off by itself once the pro cess value leaves the alarm region. in latched mode, an energized alarm requires a reset from the user input, or a serial reset command. t his is done by writing a ?0? to the appropriate modbus register. (alarm 1 state = 40027, alarm 2 state = 40028) on delay : the time, in whole second increments, that the alarm will take to energize when the process value enters into an alarm region . enable standby delay : standby prevents nuisance (typically low level) alarms after a power up. after powering up the unit, the temperature must leave the alarm region. once this has occurred, the standby is disabled, and the alarm responds normally until the next module power up. user input action : the user input can be programmed to reset, or set, either alarm 1, alarm 2, or both. the user input is activated when termina l 6 is pulled low. (connected to the common terminal 12.) user input activation : the user input can be programmed to respond as a level (maintained) or edge (momentary) input. see the user input mode operation table below. sensor failure action : this setting allows different alarm responses when the temperature sensor fails. the itms can be programmed to turn one or both alarms on or off. sets alarm while input active, resumes normal operation when input is inactive resets alarm while input is active, resumes normal operation when input is inactive; resets alarm if in hysteresis band 7 setpoint alarm figures step 6 programming the itms comms port modbus protocol : rtu or ascii unit address : 1-247 baud rate : 300, 600, 1200, 2400, 4800, 9600, 19200, or 38400 data bits : 7 or 8 parity : odd, even, or none transmit delay : programmable from 1-255 milliseconds. the transmit delay is the time the itms waits to respond to a serial command, unless the values in the table are larger. note: if the communication settings are changed and then a download is performed, the module will now respond to the new settings. any further attempts to communicate to the module must target the new address, with the new settings. if you do not know or cannot recall the itms settings, they can be reset to factory defaults. connect the serial default terminal to common, and cycle power. the defaults button in the sfims software will update the category display to these settings. communications diagnostics : the communications diagnostics function can be used to troubleshoot systems that are experiencing communication errors. press the read button to retrieve the diagnostics information. the commands received and the commands processed values are automatically reset when the values are read, and at each unit power-up. commands received : the number of messages received that started with the units own address. commands processed : the number of ?good? messages received. a ?good? message is considered one that contained the correct unit address, parity, and checksum (crc or lrc). baud rtu ascii 38400 2 msec. 2 msec. 19200 3 msec. 2 msec. 9600 5 msec. 2.3 msec. 4800 9 msec. 4.6 msec. 2400 17 msec. 9.2 msec. 1200 33 msec. 18.4 msec. 600 65 msec. 36.7 msec. 300 129 msec. 73.4 msec. 8 step 7 pc port configuration step 8 downloading go to the settings pull-down menu, and select pc port settings. the communications settings window allows you to set up the software properly to perform a download. connection : select the computer port (comm 1-4) that the itms is connected to. note : the following settings must match the itms. if you do not know or cannot recall the itms settings, they can be reset back to factory defaults. simply jumper the serial default terminal to common, and cycle power. the serial settings will default to rtu mode, 9600 baud, 8 data bits, no parity, with an address of 247. protocol : rtu or ascii unit address : 1-247 baud rate : 300, 600, 1200, 2400, 4800, 9600, 19200, 38400 data bits : 7 or 8 parity : odd, even, or none note: the cbpro007 download cable does not typically require power. in most cases it will derive its power from the pc. if communications can not be established, follow the troubleshooting guide. if it is determined that the converter requires power, attach a 12 vdc power supply to the vdc and common terminals of the cable. go to the file pull-down menu, and select download. the following screen prompts you to ensure that the proper file is downloaded to the correct module. click ?ok? to continue. connect the itms to the computer with the cbpro007 interface cable (or any suitable rs232/rs485 converter). apply 18-36 vdc to the supply terminals of the itms. 9 step 9 scratch pad memory step 10 view registers step 11 calibration the itms is fully calibrated from the factory. recalibration is recommended every two years. each range has its own internal references that are recalled when the range is selected. this allows independent calibration for each range. all calibration settings are stored in the e 2 prom. calibration may be performed by using sfims software or modbus commands. rtd and cj calibrations are dependent on the millivolt calibration and, therefore, must be performed after a millivolt calibration has been completed. rtd or cj calibration may be performed independently of the millivolt calibration. calibration type: this specifies the type of calibration to be performed. cold junction calibration: tc type : this selects the type of tc that is being used to calibrate the cold junction. scale : this selects the scale in which the thermometer temperature is entered and the module temperature is displayed. thermometer : enter the reference thermometer temperature here. module : this displays the itms process temperature value after a cold junction calibration is completed to verify the accuracy. calibrate: the calibrate button initiates the calibration process after the appropriate settings are selected. note: millivolt calibration requires a precision voltage source with an accuracy of 0.025% or better. allow the itms to warm up for 30 minutes minimum and follow the manufacturer?s warm-up recommendations for the calibration source. rtd calibration requires a 0.1% precision 300 ohm resistor. cj calibration should be performed with a tc of known accuracy of types t, e, j, k, c or n only. when using sfims for calibration, select the type of calibration to be performed, and press the calibrate button. follow the calibration procedures in the software. the scratch pad category can be used to read or write to the scratch pad memory locations (41101- 41116). the scratch pad locations can be used to store user information. data format : allows registers to be viewed in decimal or hexadecimal format. upload : the upload button causes sfims software to read the scratch pad registers from the module. download : the download button causes sfims software to write to the scratch pad registers in the module. note: downloading new values to the module scratch pad locations overwrites the information that is currently stored in those registers. the view registers category can be used as a method of diagnostics. use the itms register table as a reference of register assignments and data. first register : this specifies the first, or only, register to be read in a block. # of registers : this is the length of the block to be read. the module supports block read and write commands up to 16 registers in length. data format : allows registers to be viewed in decimal or hexadecimal format. read : clicking the read button causes sfims software to read the selected register from the module. write : clicking the write button causes sfims software to write the selected registers to the module. note: the write button overwrites the existing register values, and may change the module setup and operation. 10 installation the unit is equipped with a universal mounting foot for attachment to standard din style mounting rails, including g profile ra il according to en50035 - g32 , and top hat (t) profile rail according to en50022 - 35 x 7.5 and 35 x 15. the unit should be insta lled in a location that does not exceed the maximum operating temperature and provides good air circulation. placing the unit near device s that generate excessive heat should be avoided. g rail installation to install the itms on a ?g? style din rail, angle the module so that the upper groove of the ?foot? catches under the lip of the top rail. push the module toward the rail until it snaps into place. to remove a module from the rail, push up on the bottom of the module while pulling out and away from the rail. t rail installation to install the itms on a ?t? style rail, angle the module so that the top groove of the ?foot? is located over the lip of the top rail. push the module toward the rail until it snaps into place. to remove a module from the rail, insert a screwdriver into the slot on the bottom of the ?foot?, and pry upwards on the module until it releases from the rail. application a chemical company wanted to remotely monitor the temperature of several holding tanks. using the itms, the customer was able to receive, interpret, and store the temperature readings via standard thermocouples. to provide a remote display, the customer chose a red lion paradigm hmi (human machine interface). the hmi communicates with the itms modules and displays the information graphically, providing an intuitive interface. as an added benefit, the itms alarm setpoints can be adjusted from the hmi, while providing reliable local alarm outputs. troubleshooting * can be monitored by accessing coils 9-16, or register 40025. for further technical assistance, contact technical support. problem cause remedies green led will not light module power check module power connections and voltage level process value not changing input signal check input signal connections and signal level incorrect scaling check input setup, scaling values, and re-download alarms disabled alarm threshold over range*; checksum error; input over/under range; open or shorted probe*; calculated results over +32000 or -32000; in calibration mode adjust alarm setpoint and hysteresis to ensure trigger point is within -32000 to +32000 (see alarm setup). for other possible causes, see the remaining remedies process value stays at 32001 or -32001 input over or under range* due to: wrong tc, or rtd incorrect input type check input level check input type, and re-download process value stays at -32002 note: the itms? serial settings must match the device that it is communicating with. if you do not know or cannot recall the itms settings, they can be reset back to factory defaults. simply jumper the serial default terminal to common, and cycle power. the serial settings will default to rtu mode, 9600 baud, 8 data bits, no parity, with an address of 247. shorted rtd:* process value stays at 32002 open tc or rtd:* check input signal connections and probe process value stays at 32100, flashing leds, alarms disabled parameter checksum*, loss of parameter settings calibration checksum* re-download sfims file (reconfigures each parameter) perform calibration procedure will not communicate (green led not flashing) incorrect serial settings (itms port) incorrect serial settings (computer port) incorrect wiring verify itms communications setup go to pull down menu settings, pc port settings try switching a+ and b- lines provide a common connection check input signal connections and probe process value stays at +32003 or -32003 calculated temp. value over +32000 or -32000 check offset value, register 40012 process value not changing or incorrect 11 modbus information the remaining sections of this bulletin list itms register format information and modbus conformity. modbus supported function codes fc01: read coils 1. valid coil addresses are 1-16. 2. only 16 coils can be requested at one time. 3. block starting point can not exceed coil 16. fc05: force single coil 1. valid write (force) coil addresses are 1-10. 2. <8001>hex is echoed back that the coil did not change during the request to write to a read only coil. fc15: force multiple coils 1. valid write (force) coil addresses are 1-10. 2. block starting point can not exceed coil 10. 3. if a multiple write includes read only coils, then only the write coils will change. fc03: read holding registers 1. valid addresses are 40001-40029, 41001-41010, 41101-41116. 2. only 16 registers can be requested at one time. 3. block starting point can not exceed the register boundaries. 4. <8000>hex is returned in registers beyond the boundaries. 5. holding registers are a mirror of input registers. fc06: preset single register 1. valid write (preset) addresses are 40006-40029, 41101-41116. 2. <8001>hex is echoed back that the register did not change during the request to write to a read only register. 3. if the write value exceeds the register limit (see register table), then that register value changes to its exceeded high or low limit. it is also returned in the response. fc16: preset multiple registers 1. valid write (force) register addresses are 40006-40029, 41101-41116. 2. no response is given with an attempt to write to more than 16 registers at a time. 3. block starting point can not exceed the read and write boundaries. 4. if a multiple write includes read only registers, then only the write registers will change. 5. if the write value exceeds the register limit (see register table), then that register value changes to its exceeded high or low limit. fc04: read input registers 1. valid addresses are 30001-30029, 31001-31010, 31101-31116. 2. only 16 registers can be requested at one time. 3. block starting point can not exceed register boundaries. 4. <8000>hex is returned in registers beyond the boundaries. 5. input registers are a mirror of holding registers. fc08: diagnostics the following is sent upon fc08 request: unit address, 08 (fc code), 04 (byte count), ?total comms? 2 byte count, ?total good comms? 2 byte count, checksum of the string. ?total comms? is the total number of messages received that were addressed to the itms. ?total good comms? is the total messages received by the itms with good address, parity and checksum. both counters are reset to 0 upon response to fc08. fc17: report slave id the following is sent upon fc17 request: unit address, 17 (fc code), rlc-ITMS4037, 0100 (for code version 1.00), 16 (number of read supported registers), 16 (number of writes supported registers), 16 (number of registers available for guid/ scratch pad memory), checksum of the string. the following is the hex of the above (with unit address of 247): 12 ?1? = open rtd or tc, causes process temp. value to be 32002, disables alarms, causes no led indication. coil address coil name access comments 1 baud b0 read/write see communication register and coils table. 2 baud b1 read/write see communication register and coils table. 3 baud b2 read/write see communication register and coils table. 4 parity b3 read/write see communication register and coils table. 5 parity b4 read/write see communication register and coils table. 6 data bits b5 read/write see communication register and coils table. 7 mode b6 read/write see communication register and coils table. 8 change b7 read/write ?1? = change itms communications to above settings. 9 p. checksum error read/write ?1? = parameter checksum error, disables alarms, causes flashing leds. 10 c. checksum error read/write ?1? = calibration checksum error, disables alarms, causes flashing leds. 11 al 1 over range read only ?1? = alarm 1 threshold over range, disables alarms, causes no led indication. 12 al 2 over range read only 13 open input 14 over range ?1? = alarm 2 threshold over range, disables alarms, causes no led indication. read only ?1? = over range, causes process temp. value to be 32001, disables alarms, causes no led indication. read only 15 under range read only ?1? = under range, causes process temp. value to be -32001, disables alarms, causes no led indication. 16 shorted rtd read only ?1? = shorted rtd, causes process temp. value to be -32002, disables alarms, causes no led indication. register table the below limits are shown as integers or hex < > values. read and write functions can be performed in either integers or hex a s long as the conversion was done correctly. negative numbers are represented by two?s complement. coils table (communication and errors) * for input registers, replace the 4xxxx with a 3xxxx in the above register address. the 3xxxx are a mirror of the 4xxxx holdin g registers. ? an attempt to exceed a limit will set the register to its high or low limit value. coils 1-7 mirror register 40026 and coils 9-16 mirror register 40025. register address * register name low limit ? high limit ? access comments 40007 cj temp -32000 32000 40001 adc reading n/a n/a read only adc (analog to digital converter) reading of present input level. read/write cold junction calibration temp (1 = 0.01c). 40009 high resolution 40002 process temperature value n/a n/a read only process value (with scale and offset) of present input level. 0 1 read/write 0 = 1 degree, 1 = 0.1 degree. 40003 floating point lo n/a n/a read only ieee standard 754 floating decimal point, low order of temperature value. (allows 32 bit accuracy for external monitoring.) 40013 user input action <0000> <0015> 40004 floating point hi n/a n/a read only ieee standard 754 floating decimal point, high order of temperature value. (allows 32 bit accuracy for external monitoring.) read/write see user input action register table. 40022 sensor failure action 40005 user input pin state n/a n/a read only 0 = active, 1 = inactive. 0 3 read/write see sensor failure action for alarm state table. 40006 temperature scale 0 1 read/write 0 = f, 1= c. 40008 input type 0 13 read/write see input type register table. 40010 filter band 0 32000 read/write see filter band explanation. 40011 filter response time 0 1000 read/write see filter response time explanation (1 = 0.1 second). 40012 offset value -32000 32000 read/write see offset explanation. 40014 alarm 2 action <0000> <0038> read/write see alarm 1 & 2 action register table. 40015 setpoint 2 value -32000 32000 read/write alarm 2 setpoint value based on process value. 40016 alarm 2 hysteresis 1 32000 read/write alarm 2 hysteresis value based on process value. 40017 alarm 2 delay 0 32000 read/write alarm 2 delay trip on time (1 = 1 second). 40018 alarm 1 action <0000> <0034> read/write see alarm 1 & 2 action register table. 40019 setpoint 1 value -32000 32000 read/write alarm 1 setpoint value based on process value. 40020 alarm 1 hysteresis 1 32000 read/write alarm 1 hysteresis value based on process value. 40021 alarm 1 delay 0 32000 read/write alarm 1 delay trip on time (1 = 1 second). 40023 transmit delay 1 255 read/write delay before serial transmission (1 = 1 msec). see transmit delay explanation. 40024 node (unit) address 1 247 read/write node serial itms address. 40025 error coils <0000> <0003> read/write mirror of coils 9-16. see coil table. 40026 comm. coils <0020> <00ff> read/write mirror of coils 1-8. see coil table and communications table. 40027 alarm 1 state 0 1 read/write alarm 1 state (1 = on). 40028 alarm 2 state 0 1 read/write alarm 2 state (1 = on). 40029 factory calibration <0000> <7777> read/write see modbus calibration explanation. 41001- 41010 slave id see fc17. see fc17. read only itms-4037, 0100 (ver. 1.00), 16 reads, 16 writes, 16 scratch. the version value could be higher. 41101- 41116 guid/scratch <0000> 13 alarm 1 (40018) & 2 (40014) action register table input type register (40008) table sensor failure action register (40022) table for alarm state condition user input action register (40013) table examples : alarm 1 (40018): stand-by off, latch on = 0 0 0 1 <1 > absolute lo, balanced = 0 0 1 0 < 2> <1 2> alarm 2 (40014): stand-by on, latch off = 0 0 1 0 <2 > band outside = 0 1 1 1 < 7> <27> communications register (40026) and coils 1-8 table * when reading register 40026, b7 will be a 0. when writing (changing itms communications to the new setting), change b7 to a 1 . mode parity baud coil 8 b7* coil 7 b6 coil 6 b5 coil 5 b4 coil 4 b3 coil 3 b2 coil 2 b1 coil 1 b0 coil 8 =0 hex coil 8 =1 hex rtu 8n1,2 300 0 / 1 0 1 0 0 0 0 0 <20> 14 communications register (40026) and coils 1-8 table (continued) mode parity baud coil 8 b7 * coil 7 b6 coil 6 b5 coil 5 b4 coil 4 b3 coil 3 b2 coil 2 b1 coil 1 b0 coil 8 =0 hex coil 8 =1 hex ascii 7n2 300 0 / 1 1 0 0 0 0 0 0 <40> 15 this page intentionally left blank limited warranty the company warrants the products it manufactures against defects in materials and workmanship for a period limited to two years from the date of shipment, provided the products have been stored, handled, installed, and used under proper conditions. the company?s liability under this limited warranty shall extend only to the repair or replacement of a defective product, at the company?s option. the company disclaims all liability for any affirmation, promise or representation with respect to the products. the customer agrees to hold red lion controls harmless from, defend, and indemnify rlc against damages, claims, and expenses arising out of subsequent sales of rlc products or products containing components manufactured by rlc and based upon personal injuries, deaths, property damage, lost profits, and other matters which buyer, its employees, or sub-contractors are or may be to any extent liable, including without limitation penalties imposed by the consumer product safety act (p.l. 92-573) and liability imposed upon any person pursuant to the magnuson-moss warranty act (p.l. 93-637), as now in effect or as amended hereafter. no warranties expressed or implied are created with respect to the company?s products except those expressly contained herein. the customer acknowledges the disclaimers and limitations contained herein and relies on no other warranties or affirmations. red lion controls 20 willow springs circle york pa 17406 tel +1 (717) 767-6511 fax +1 (717) 764-0839 red lion controls ap 31, kaki bukit road 3, #06-04/05 techlink singapore 417818 tel +65 6744-6613 fax +65 6743-3360 red lion controls bv basicweg 11b nl - 3821 br amersfoort tel +31 (0) 334 723 225 fax +31 (0) 334 893 793 |
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