model CJ1W-TS562 rtd input unit instruction sheet thank y ou for purchasing an omron product. read this instruction sheet thoroughly and familiarise y ourself w i th the functions and characteristics of the product before using it. to ensure safe and correct use of this unit, also read the operation- and programming manuals for y our cj1 plc sy stem. keep this instruction sheet for future reference. omron ma nufa c turing of the netherla nds b.v. ? omron corporation 2004 all rights reserved general specifications unit classification cj- s er ies basic i/o unit compatible racks cj- s er ies cpu rack or cj-series expansion rack max. number of units 10 units/rack max . (this requires a cj1g or cj1h cpu) cpu unit data area for inputs basic i/o area cio0000 ? 0999 (3, 4 or 6 w o rds allocated in io table) insulation resistance 20 m ? min. (at 500 v dc) betw een input terminals and external ac terminals (pow er supply unit) dielectric strength 500 vac 50/ 60 hz for 1 min. (detection current: 1 ma), betw een input terminals and external ac terminals (pow er supply unit) internal current consumption 250 ma max., 5 v dc, from the cj1 i/o bus. dimensions 31 x 90 x 65 m m (w x h x d) weight 150 g max. other other general specific ations conform to the cj-series general specifications. see operation manual w393. unit description characteristics the CJ1W-TS562 is a 6-channel input unit for pt100 and pt1000 rtd?s. it can be installed in any cj1-series plc sy stem. temperature sensor pt100 or pt1000 (iec 60751) number of inputs 1 to 6 measurement range pt100: -200.0 to +650.0 c pt1000: -200.0 to +650.0 c indication resolution 0.1 c leadw ire compensation automatic, measured on b? terminals, updates one sensor in each scan cy cle. temperature value data representation 16-bit signed integer in units of 0.1 c: #f830 = -200.0 c, #1964 = +650.0 c indication accuracy over full operational range (0 ? 55 c ambient temperature) 0.5 % of indicated value or 0.8 c (w hichever is larger) 1 digit max. w hen using 3-w i re connection. input response time (per active input) 40 ms (100 hz suppression) 67 ms (60 hz suppression) 80 ms (50 hz suppression) 400 ms (50+60 hz suppression) input update cy cle time (all active inputs) [number of active inputs + 1] x [input response time] + 40 ms i/o refresh time (influence on plc cy cle time) 1-3 inputs (48pt mode): 0.008 ms 4 inputs (64pt mode): 0.011 ms 5-6 inputs (96pt mode): 0.016 ms it is classified as a basic i/o unit, occupy ing 48, 64 or 96 i/o points, depending on the number of activated inputs. alw a y s verify that the maximum i/o capacity of the cj1 cpu is sufficient for the number of required i/o points. nomenclature unit status indicators ? run (green) ? erc (red) sensor error indicators ? 1 - 6 (red) remov a ble terminal block ? connections for rtds 1 through 6 dip sw itches (remov e terminal block for access) ? select input ty pes (pt100/pt1000) ? select filter functions ? select number of active inputs (1-6) terminal block latch ? slide dow n to remove ? slide up to lock led indicators n a m e s t a t e d e s c r i p t i o n off fatal error or no pow er supply . ? check the host plc?s cpu status, and the status of other i/o units. if all other units function normally , replace the unit run (green) on unit functions normally . off no fatal errors. erc (red) o n incor r e ct dip sw itch setting fatal error in the unit. ? check the cpu unit for error codes. ? re-start the plc sy stem. ? if the erc led is still lit, r eplace the unit. off ? measurement of the corresponding channel is w i thin range, or ? channel has been deactivated by dip sw itch settings on ? measured temperature out-of-range, or ? rtd broken w i re or short circuit sensor error 1 ? 6 (red) all on calibration data not found or incorrect. the unit should be returned to omron for calibration. wiring ? use the same length and ty pe of leadw ire for each rtd?s terminals a, b, and b?, so that the leadw ire impedances w ill be the same. 2-w i re connection can be used by shorting b-b?, but the specified indication accuracy cannot be guaranteed. ? for activated but unused inputs, short-circuit the a?b and b?b? terminals, to prevent unstable readout on the other inputs. ? keep the input w i ring aw ay from pow er lines including ac pow er supply lines and high-pow er lines. do not run the i/o lines in the same duct or conduit as pow er lines. ? the input circuits are galvanically isolated from the plc?s i/o bus, but there is no galvanic isolation betw een individual inputs. all b? terminals are interconnected in the unit. ? alw a y s ground the terminal on the pow e r supply unit of the plc. in case of shielded sensor w i ring, connect the shields to the same grounding point as the plc.
dip sw itches data representation 8 dip sw itches are accessible after removing the front terminal block. sw itch settings are processed at time of pow er on, and should not be changed w h ile the unit is pow ered. measured temperatures are indicated in c. each input value occupies one w o rd (16 bits) in the cio area and is encoded as a signed integer, w i th a resolution of 0.1 c. examples: #0300 = 768 (dec) = 76.8 c default (ex-factory ) setting is all sw itches on, i.e. all 6 inputs are active and set to pt100 sensor, w i th filtering at n x 100 hz. be sure to adjust the settings to y our requirements before use. #ff85 = -123 (dec) = -12.3 c measured values are updated in cio memo ry in each i/o refresh cy cle. the follow i ng values are to be interpreted as error codes: v a l u e d e s c r i p t i o n #7aaa error detected at startup, or calibration data invalid #7bbb sensor error, broken w i re or short circuit #7ccc measured value out of range (over max. temperature) #8ccc measured value out of range (under min. temperature) sw 1, 2 and 3 : input ty pe selection any combination of input ty pes (different numbers of pt100/pt1000 sensors) can be set. sw state input ty pe selection off input channel 1 is pt1000 1 on input channel 1 is pt100 off input channels 2 and 3 are pt1000 2 on input channels 2 and 3 are pt100 off input channels 4, 5 and 6 are pt1000 3 on input channels 4, 5 and 6 are pt100 during initialisation after pow er o n , data of active inputs w ill be #0000 until the ?not ready ? flag turns off. ?not ready ? flag during initialisation after pow er-on, and in case of internal failure, a ?not ready ? flag w ill be set in the plc memory area a050 to a069 (basic i/o unit information area, refer to cj1 operation manual w393 for details). sw 4 + 5 : input filtering (v alid for all activ e input channels) the low e r bit of each unit is the not ready flag; the error code indicated in the remaining bits is relevant for repair purposes only . while this flag is on, the temperat ure sensor data indicated by the unit in the cio area is invalid. use filtering if the measured value is affected by the mains frequency or other sources of electrical interference. a ddress bit when bit = on 00 unit in rack 0, slot 0 is not ready a050 08 unit in rack 0, slot 1 is not ready 00 unit in rack 0, slot 2 is not ready a051 ? ? 00 unit in rack 1, slot 0 is not ready a055 ? ? 00 unit in rack 3, slot 9 is not ready a069 08 unit in rack 3, slot 10 is not ready s w 4 s w 5 f i l t e r i n g response t i m e off off n x 10 hz suppr ession 400 ms each input off on n x 50 hz suppr ession 80 ms each input on off n x 60 hz suppr ession 67 ms each input on on n x 100 hz suppression 40 ms each input sw 6+7+8 : input activ ation to prevent broken w i re indication for unused inputs, and to reduce the number of input channels occupied in cio memory , the number of required inputs can be set by sw 6+7+8. unit cy cle time input w o rds are allocated in the plc?s cio area as basic i/o unit, i.e. sequentially starting at the leftmos t unit. see cj1-series operation manual w393 for details. the internal processing time for all measurements by the unit is determined by the number of active channels and the filter ty pe. create the i/o table in the plc after changing the sw itch settings, to register the correct number of input w o rds in the plc cpu. the unit is registered as 48-point, 64-point, or 96-point input unit, depending on the number of 16-bit cio w o rds it occupies. measure channel 1 unit initialisation, measure all b? leadw ires check all sensors measure channel 2 measure channel n measure one b? leadw ire check one sensor for error the leadw ire compensation measurement and sensor error detection for each input are executed once every n cy cles (n = number of active inputs) sw 6 sw 7 sw 8 a c tiv e inputs occupied input w o rds o f f o f f o f f not valid, erc indicator w ill be o n on off off 1 3 cio w o rds (1 used)* off on off 1, 2 3 cio w o rds (2 used)* on on off 1, 2, 3 3 cio w o rds off off on 1, 2, 3, 4 4 cio w o rds on off on 1, 2, 3, 4, 5 6 cio w o rds (5 used)* off on on 1, 2, 3, 4, 5, 6 6 cio w o rds on on on 1, 2, 3, 4, 5, 6 6 cio w o rds the leadw ire measurement time depends on the input filter setting, w hereas the sensor error (broken w i re) check takes a fixed 40 ms. example: if 4 inputs are active, and filtering is set to n x 50 hz (response time = 80 ms): * in these cases, more cio w o rds w ill be occupied than required for the active inputs. the remaining occupied cio w o rds w ill be filled w i th 0?s, and cannot be used as w o rk bits. each measurement cy cle takes (4+1) x 80 + 40 ms = 440 ms. the leadw ire compensation of each channel is recalculated every n x 440 ms = 1760 ms. om ron corpora t i o n omron europe b.v. wegalaan 67-69 nl-2132 jd hoofddorp the netherlands phone (+31) 23 - 56 81 300 fax (+31) 23 - 56 81 388 n o te: speci f i c ati on subj ect to chang e w i thout noti c e pr i n ted i n t h e n e ther l ands 1634292-5a
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