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. 512-5902
Mfr. Part No.CJ1W-OD212
BrandOmron
kr 2 624,00
Each
Units
SYSMAC CJ Series - 16 - Digital, Transistor SYSMAC CJ Series 16 - 24 V dc 500 mA - 89mm 31mm 95.4mm
RS Stock No. 821-1781
Mfr. Part No.CP1W-DAB21V
BrandOmron
kr 918,50
Each
Units
CP1W - 2 - Analogue CP1L CPU Unit 2 - 0 10 V - - 86mm 90mm 50mm
RS Stock No. 145-857
Mfr. Part No.GRT1-AD2
BrandOmron
kr 2 435,00
Each
Units
GRT1 Series 2 - Analogue - - 2 - - - - - - -
RS Stock No. 145-885
Mfr. Part No.GRT1-OD4-1
BrandOmron
kr 560,50
Each
Units
GRT1 Series - 4 - Digital DeviceNet Communication 4 - - - - - - -
RS Stock No. 821-1772
Mfr. Part No.CP1W-ADB21
BrandOmron
kr 918,50
Each
Units
CP1W 2 - Analogue - CP1L CPU Unit 2 - 0 10 V 0 20 mA - 86mm 90mm 50mm
RS Stock No. 510-1417
Mfr. Part No.CJ1W-AD081
BrandOmron
kr 6 735,00
Each
Units
SYSMAC CJ Series, SYSMAC CP1H, SYSMAC CP1L 8 - Analogue - SYSMAC CJ Series, SYSMAC CP1H Series, SYSMAC CP1L Series 8 - -10 10 V, 0 10 V, 0 5 V, 1 5 V - - 90mm 31mm 65mm
RS Stock No. 459-5423
Mfr. Part No.SRT2OD161
BrandOmron
kr 3 137,00
Each
Units
SRT2 16 - Digital Mosfet, Relay, Transistor SRT2 Series 16 - 24 V dc 300 (Per Point) mA - 105mm 48mm 50mm
RS Stock No. 510-1710
Mfr. Part No.CJ1W-AD041
BrandOmron
kr 5 530,00
Each
Units
SYSMAC CJ Series, SYSMAC CP1H, SYSMAC CP1L 4 - Analogue - SYSMAC CJ Series, SYSMAC CP1H Series, SYSMAC CP1L Series 4 - -10 10 V, 0 10 V, 0 5 V, 1 5 V - - 90mm 31mm 65mm
RS Stock No. 146-002
Mfr. Part No.GRT1-DA2V
BrandOmron
kr 2 435,00
Each
Units
GRT1 Series - 2 - Analogue - 2 - - - - - - -
RS Stock No. 145-936
Mfr. Part No.CJ1W-DRM21
BrandOmron
kr 8 855,00
Each
Units
- - - - - CJ Series 2048 (Fixed Allocation) - 11 25 V dc - - 31mm 90mm 78.7mm
RS Stock No. 510-1518
Mfr. Part No.CJ1W-SCU21
BrandOmron
kr 5 580,00
Each
Units
- - - - - CPU Racks - - - - - - - -
RS Stock No. 512-5889
Mfr. Part No.CJ1WID211
BrandOmron
kr 2 289,00
Each
Units
SYSMAC CJ Series 16 - Digital - SYSMAC CJ Series 16 - 20.4 26.4 V dc 3 mA - 89mm 31mm 95.4mm
RS Stock No. 136-2791
Mfr. Part No.NXID3417
BrandOmron
kr 365,50
Each
Units
NX 4 - Digital - CJ PLC, EtherCAT Coupler Unit, NX Series CPU Unit 4 (Input) - 12 24 V dc - DC Input 12mm 71mm 100mm
RS Stock No. 136-2792
Mfr. Part No.NXID4442
BrandOmron
kr 559,50
Each
Units
NX 8 - Digital - CJ PLC, EtherCAT Coupler Unit, NX Series CPU Unit 8 (Input) - 24 V dc - DC Input 12mm 71mm 100mm
RS Stock No. 146-052
Mfr. Part No.GRT1-ROS2
BrandOmron
kr 683,00
Each
Units
GRT1 Series - 2 - - DeviceNet Communication 2 - - - - - - -
RS Stock No. 136-2802
Mfr. Part No.NXDA2603
BrandOmron
kr 1 872,00
Each
Units
NX - 2 - Analogue CJ PLC, EtherCAT Coupler Unit, NX Series CPU Unit 2 (Output) - -10 +10 V - Output 12mm 71mm 100mm
RS Stock No. 136-2795
Mfr. Part No.NXOD4256
BrandOmron
kr 630,00
Each
Units
NX - 8 - Digital CJ PLC, EtherCAT Coupler Unit, NX Series CPU Unit 8 (Output) - 24 V dc 400 mA Output 12mm 71mm 100mm
RS Stock No. 145-879
Mfr. Part No.GRT1-CT1-1
BrandOmron
kr 1 445,00
Each
Units
- 1 1 - - - 2 - - - - - - -
RS Stock No. 136-2793
Mfr. Part No.NXOC4633
BrandOmron
kr 1 609,00
Each
Units
NX - 8 - Digital CJ PLC, EtherCAT Coupler Unit, NX Series CPU Unit 8 (Output) - 250 V ac 2 A Output 12mm 71mm 100mm
RS Stock No. 510-1495
Mfr. Part No.CJ1WOD211
BrandOmron
kr 2 408,00
Each
Units
SYSMAC CJ Series - 16 - Digital, Transistor SYSMAC CJ Series 16 - 12 24 V dc 500 mA - 89mm 31mm 95.4mm