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庫存編號 674-1962
製造零件編號TM2DRA16RT
HK$2,036.60
單位
Modicon M238, Twido Series - 16 - Digital Modicon M238, Twido Series - - 230 V ac - Output Module 90mm 24mm 70mm
RS庫存編號 674-1912
製造零件編號TM2AMI2HT
HK$1,188.00
單位
Modicon M238, Twido Series 2 - Analogue - Modicon M238, Twido Series - - 24 V dc - Input Module 23.5mm 70mm 90mm
RS庫存編號 539-0774
製造零件編號FX3U-4AD-TC-ADP
BrandMitsubishi
HK$3,468.35
單位
FX3U Series 4 - Analogue, J Type, K Type Digital, J Type, K Type FX3U Series - - 5 V dc, 24 V dc - Analogue Temperature Input Adapter 106mm 17.6mm 89.5mm
RS庫存編號 453-2551
製造零件編號6ES7332-5HD01-0AB0
BrandSiemens
HK$5,395.43
單位
SIMATIC S7-300 Series - 4 - Analogue SIMATIC S7-300 Series 4 - 24 V dc - - 125mm 40mm 120mm
RS庫存編號 615-2371
製造零件編號SR2MOD02
HK$4,230.00
單位
- - - - - - - - 12 → 24 V dc - GSM modem 73mm 54.5mm 39.5mm
RS庫存編號 405-6209
製造零件編號4825 0093
BrandSocomec
HK$1,405.90
單位
- - 4 - Analogue - - - - - - - - -
RS庫存編號 806-6893
製造零件編號TMC2AQ2C
HK$693.06
單位
Modicon M221 2 - Analogue Current Modicon M221 - - 24 V dc 20 mA - - - -
RS庫存編號 674-1946
製造零件編號TM2DDI32DK
HK$2,068.03
單位
Twido Series 32 - Digital - Twido Series - - 24 V dc - Input Module 92.3mm 33.5mm 94.5mm
RS庫存編號 281-2085
製造零件編號TSXDEZ12D2K
HK$2,716.16
單位
Modicon TSX Micro 12 (Channel) - Discrete - Modicon TSX 12 - 24 V dc - - - - -
RS庫存編號 662-3595
製造零件編號6ES7134-4GB01-0AB0
BrandSiemens
HK$1,384.32
單位
SIMATIC ET 200S 2 - Analogue - SIMATIC ET 200S Series 2 - 24 V dc - - 81mm 15mm 52mm
RS庫存編號 455-6923
製造零件編號QX10
BrandMitsubishi
HK$1,302.48
單位
MELSEC Q 16 - Digital - MELSEC Q Series 16 - 100 → 120 V ac - - 98mm 27.4mm 90mm
RS庫存編號 615-2387
製造零件編號SR2COM01
HK$1,360.00
單位
Zelio Logic - - - - - - - 12 → 24 V dc - Relay 107.6mm 72mm 59.5mm
RS庫存編號 510-1423
製造零件編號CJ1W-DA041
BrandOmron
HK$5,848.90
單位
CJ Series - 4 - Analogue CJ Series 4 - 24 V dc 12 mA - 90mm 31mm 65mm
RS庫存編號 812-9736
製造零件編號FC4A-J4CN1
BrandIdec
HK$5,734.88
單位
FC4A 4 - Analogue - MicroSmart Pentra CPU 4 - 24 V dc - Analog Expansion Module 90mm 27.3mm 84.6mm
RS庫存編號 889-0854
製造零件編號SNAP-IAC5AFM
BrandOpto 22
HK$777.64
單位
- - - - - - - - - - - 18.29mm - 82.55mm
RS庫存編號 133-399
製造零件編號101520
BrandEaton
HK$3,050.00
單位
- - - - - Easy 500 Series, Easy 700 Series, Easy 800 Series, EC4P, ES4P, MFD-CP8 - - 24 V - - 35.5mm 90mm 58mm
RS庫存編號 136-2807
製造零件編號NXPF0730
BrandOmron
HK$274.23
單位
NX - - - - EtherCAT Coupler Unit, NX Series CPU Unit - - - 10 A - 12mm 71mm 100mm
RS庫存編號 812-9749
製造零件編號FC4A-K4A1
BrandIdec
HK$9,239.11
單位
FC4A - 4 - Analogue MicroSmart Pentra CPU 4 - 24 V dc 4 → 20 mA Analog Expansion Module 90mm 27.3mm 84.6mm
RS庫存編號 889-0858
製造零件編號SNAP-IAC5FM
BrandOpto 22
HK$777.64
單位
- - - - - - - - - - - 18.29mm - 82.55mm
RS庫存編號 855-3476
製造零件編號2861687
HK$1,275.10
單位
IB IL 24 DO 8-2MBD-PAC - 8 - Digital - - - - 4 A - 119.5mm 48.8mm 71.5mm