PLC I/O Modules

PLC I/O modules are one of the three core components that operate a programmable logic controller. I/O refers to input/output. PLC I/O modules act as messengers between a processor and an I/O device.

How do PLC I/O modules work?

PLC I/O modules assist the data exchange between an external device and computer memory. Their main job is to process communication to the PLC and accept commands sent from a processor. They can also detect errors, run status reports and co-ordinate a timely flow of data.

Types of PLC I/O modules

The type of PLC I/O modules used by a programmable logic controller depends on the type of input device. These are categorised as input or output types. Some PLCs respond to digital inputs and outputs, whereas others respond to analog signals. Digital inputs are either on or off, and analog signals process conditions as voltage. Other types include discrete, speciality and communication modules. Smaller PLCs are usually designed with fixed I/O points.


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Description Price Manufacturer Series Number of Inputs Number of Outputs Input Type Output Type For Use With Number of I/O Interface Voltage Category Output Current Module Type Length Width Depth
RS Stock No. 764-6252
Mfr. Part No.2901533
PHP18,725.51
Each
units
PLC-RPT- 24DC/21AU, RAD-DAIO6-IFS 1 (Analogue), 2 (Digital) 1 (Analogue), 2 (Digital) Analogue, Digital Analogue, Current, Digital, Relay, Voltage RAD-2400-IFS Wireless Module - - 19.2 → 30.5 V dc 20 mA - 99mm 17.5mm 114.5mm
RS Stock No. 696-2119
Mfr. Part No.2313452
PHP31,286.08
Each
units
FL COMSERVER UNI 232/422/485 - - - - - - - 28 V dc, 240 V ac - - 86mm 12.3mm 96mm
RS Stock No. 901-0817
Mfr. Part No.2903806
PHP36,701.92
Each
units
TC MOBILE I/O X200 AC 4 4 Digital Relay PSI Modem SMS Relay 8 - 125 V dc, 250 V ac 5 A Digital 71.6mm 62.2mm 89.7mm
RS Stock No. 855-3322
Mfr. Part No.2701161
PHP2,131.75
Each
units
IB IL 24 PWR IN-XC-PAC - - - - - - - - - - 119.8mm 12.2mm 71.5mm
RS Stock No. 124-3352
Mfr. Part No.2906599
PHP1,096.49
Each
units
IOA AI/AO/BFI/DS/0.5A/EX 1 (Analogue) 1 (Analogue) Analogue Analogue Field Devices 2 - - - I/O Module 10.3mm 64.2mm 72.9mm
RS Stock No. 528-0611
Mfr. Part No.2862411
PHP39,813.85
Each
units
ILB PB 24 DI16 DO16 16 16 Digital Digital Profibus Series 32 - 24 V dc 500 mA - 141.5mm 156mm 57mm
RS Stock No. 855-3414
Mfr. Part No.2819765
PHP23,795.87
Each
units
IB IL INC-IN-2MBD-PAC 1 - - - - - - - - - 140.5mm 24.4mm 71.5mm
RS Stock No. 855-1389
Mfr. Part No.2863779
PHP3,629.94
Each
units
IB IL 24 PWR IN/2F-DF-PAC - - - - - - - - - - 119.8mm 12.2mm 71.5mm
RS Stock No. 855-3280
Mfr. Part No.2700965
PHP36,068.36
Each
units
IB IL PM 3P/N/EF-PAC - - - - - - - - - - 119.8mm 48.8mm 71.5mm
RS Stock No. 855-1360
Mfr. Part No.2862194
PHP28,462.62
Each
units
IB IL AO 2/SF-2MBD-PAC - 2 - Analogue - - - 24 V dc - - 136.8mm 48.8mm 71.5mm
RS Stock No. 855-1452
Mfr. Part No.2897606
PHP36,897.20
Each
units
IB IL TEMP 4/8 RTD/EF-2MBD-PAC 8 - Analogue - - - - 24 V dc - - 136.8mm 48.8mm 71.5mm
RS Stock No. 855-3527
Mfr. Part No.2862110
PHP3,860.26
Each
units
IB IL 24/230 DOR 1/W-2MBD-PAC - 1 - Relay - - - - 3 A - 119.8mm 12.2mm 71.5mm
RS Stock No. 855-3482
Mfr. Part No.2861713
PHP3,284.09
Each
units
IB IL 24 DI2-2MBD-PAC 2 - Digital - - - - - - - 119.5mm 12.2mm 71.5mm
RS Stock No. 855-3460
Mfr. Part No.2861535
PHP3,629.94
Each
units
IB IL 230 PWR IN-PAC - - - - - - - 207 253 V ac - - 119.8mm 36.6mm 71.5mm
RS Stock No. 855-3518
Mfr. Part No.2862013
PHP19,647.53
Each
units
IB IL 24 DO 16-2MBD-PAC - 16 - Digital - - - - 8 A - 140.5mm 48.8mm 71.5mm
RS Stock No. 855-1418
Mfr. Part No.2878120
PHP17,630.94
Each
units
IB IL 24 DI16-2MBD-PAC/SN** 16 - Digital - - - - - - - 140.5mm 48.8mm 71.5mm
RS Stock No. 855-1461
Mfr. Part No.2897813
PHP35,664.73
Each
units
IB IL DALI/PWR-PAC - - - - - - - - - - 119.8mm 48.8mm 71.5mm
RS Stock No. 855-1363
Mfr. Part No.2862932
PHP8,354.46
Each
units
IB IL 24 DI 8-PAC/SN 8 - Digital - - - - - - - 119.8mm 48.8mm 71.5mm
RS Stock No. 855-3357
Mfr. Part No.2701217
PHP26,849.65
Each
units
IB IL TEMP 2 RTD-XC-PAC 2 - Analogue - - - - 24 V dc - - - - -
RS Stock No. 855-3350
Mfr. Part No.2701215
PHP34,397.24
Each
units
IB IL AI 4/EF-XC-PAC 4 - Analogue - - - - 24 V dc - - 136.8mm 48.8mm 71.5mm