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PLC (Input/Output Units)

PLCs (Input/Output Units), formally called "programmable logic controllers," are components used as an interface between devices and sequencers. They work by controlling the on/off switching of the output device using a preset program that operates in response to the on/off switching of switches and sensors. They were initially developed as an alternative to relay circuits and are used in controls for boilers, pumps, automated machinery that operate inside factories, and more. PLCs are broadly divided into 2 types, modular type and packaged type. Modular types require input components and standalone units to be combined and allow for more freedom of customization. Packaged types are totally pre-assembled to offer an inexpensive installation solution.
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Brand
Product Series
Days to Ship
Number Of Inputs
Input Format
Rated Input Voltage(V)
Input answer time
Number of Outputs
Output Format
Rated load voltage(V)
Protection function
Connection Terminal
Representative Standard

    iQ-R Series Input/Output Unit

      CC-Link Digital/Analog Conversion Unit Screw Terminal Block Type

        CC-Link Input/Output Unit (Input/Output)

          MELSEC CC-Link Small-Size Type Remote I/O Unit (Output Unit)

            MELSEC CC-Link Small-Size Type Remote I/O Unit (Input Unit)

              MELSEC-F Input/Output Expansion Block

                MELSEC-F Series Input/Output Expansion Unit

                  MELSEC-Q Input Unit (DC Positive Common)

                    CJ Series Input Unit CJ1W-ID / IA

                    • On Sale Till 31/03/2025

                    CJ Series Output Unit CJ1W-OC / OA / OD

                      MELSEC-Q Series Input/Output Unit

                        MELSEC iQ-F Series Spring Clamp Terminal Block Type I/O Unit

                          MELSEC-Q Output Unit

                            MELSEC-Q Series Analog Output Unit

                              I/O Unit For MELSEC iQ-FX5 Series

                                CC-Link IE Field Network, Block Type Remote Unit NZ2GF Series

                                  CC-Link/LT Input/Output Unit (Input)

                                    MELSEC-QS Series CC-Link Safety Input/Output

                                      MELSEC-F Input Expansion Board / Output Expansion Board

                                        CC-Link IE Field Network Basic, Block Type Remote Unit

                                          MELSEC-Q Series AC Input Unit

                                            Q173/Q172 Motion Controller Synchronous Encoder Input Unit

                                              CC-Link/LT Input/Output Unit (Output)

                                                MELSEC-Q Series Input Unit (DC/AC)

                                                  MELSEC-Q Series Input Unit (DC Negative Common)

                                                    Input/Output Unit CS1W

                                                      SYSMAC CJ series   CJ2M pulse I/O block

                                                        NX Series Digital Input Unit NX-ID DC Input Unit

                                                          MELSEC iQ-F Input/Output Expansion Block (Input/Output Unit) FX5

                                                            MELSEC-L Series DC Input Unit

                                                              CJ series high speed counter unit

                                                                I/O control unit I/O interface unit

                                                                  Programmable Controller CP1L Expansion I/O Unit

                                                                    L Series Output Unit

                                                                      NX Series Digital Output Unit NX-OD Transistor Output Unit

                                                                        Input Module, CPX Series

                                                                          MELSEC-F Series Analog Input/Output

                                                                            MELSEC-L Series Input/Output Unit

                                                                              MELSEC-Q Series Large Input Unit (AC)

                                                                                CC-Link/LT Input/Output Unit (Input/Output)

                                                                                  MELSEC-Q Analog Input/Output Unit

                                                                                    MELSEC-Q Series Inter-Channel Insulation Pulse Input Unit

                                                                                      MELSEC-Q Series Input Unit (DC Sensor)

                                                                                        MELSEC-Q Series Interrupt Input Unit

                                                                                          C Series C500 CompoNet Slave

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                                                                                          Product Series

                                                                                          iQ-R Series Input/Output Unit

                                                                                          CC-Link Digital/Analog Conversion Unit Screw Terminal Block Type

                                                                                          CC-Link Input/Output Unit (Input/Output)

                                                                                          MELSEC CC-Link Small-Size Type Remote I/O Unit (Output Unit)

                                                                                          MELSEC CC-Link Small-Size Type Remote I/O Unit (Input Unit)

                                                                                          MELSEC-F Input/Output Expansion Block

                                                                                          MELSEC-F Series Input/Output Expansion Unit

                                                                                          MELSEC-Q Input Unit (DC Positive Common)

                                                                                          CJ Series Input Unit CJ1W-ID / IA

                                                                                          CJ Series Output Unit CJ1W-OC / OA / OD

                                                                                          MELSEC-Q Series Input/Output Unit

                                                                                          MELSEC iQ-F Series Spring Clamp Terminal Block Type I/O Unit

                                                                                          MELSEC-Q Output Unit

                                                                                          MELSEC-Q Series Analog Output Unit

                                                                                          I/O Unit For MELSEC iQ-FX5 Series

                                                                                          CC-Link IE Field Network, Block Type Remote Unit NZ2GF Series

                                                                                          CC-Link/LT Input/Output Unit (Input)

                                                                                          MELSEC-QS Series CC-Link Safety Input/Output

                                                                                          MELSEC-F Input Expansion Board / Output Expansion Board

                                                                                          CC-Link IE Field Network Basic, Block Type Remote Unit

                                                                                          MELSEC-Q Series AC Input Unit

                                                                                          Q173/Q172 Motion Controller Synchronous Encoder Input Unit

                                                                                          CC-Link/LT Input/Output Unit (Output)

                                                                                          MELSEC-Q Series Input Unit (DC/AC)

                                                                                          MELSEC-Q Series Input Unit (DC Negative Common)

                                                                                          Input/Output Unit CS1W

                                                                                          SYSMAC CJ series CJ2M pulse I/O block

                                                                                          NX Series Digital Input Unit NX-ID DC Input Unit

                                                                                          MELSEC iQ-F Input/Output Expansion Block (Input/Output Unit) FX5

                                                                                          MELSEC-L Series DC Input Unit

                                                                                          CJ series high speed counter unit

                                                                                          I/O control unit I/O interface unit

                                                                                          Programmable Controller CP1L Expansion I/O Unit

                                                                                          L Series Output Unit

                                                                                          NX Series Digital Output Unit NX-OD Transistor Output Unit

                                                                                          Input Module, CPX Series

                                                                                          MELSEC-F Series Analog Input/Output

                                                                                          MELSEC-L Series Input/Output Unit

                                                                                          MELSEC-Q Series Large Input Unit (AC)

                                                                                          CC-Link/LT Input/Output Unit (Input/Output)

                                                                                          MELSEC-Q Analog Input/Output Unit

                                                                                          MELSEC-Q Series Inter-Channel Insulation Pulse Input Unit

                                                                                          MELSEC-Q Series Input Unit (DC Sensor)

                                                                                          MELSEC-Q Series Interrupt Input Unit

                                                                                          C Series C500 CompoNet Slave

                                                                                          Days to Ship 2 Day(s) or more 20 Day(s) or more 20 Day(s) or more 1 Day(s) or more 20 Day(s) or more 20 Day(s) or more 20 Day(s) or more 20 Day(s) or more Same day or more Same day or more 20 Day(s) or more 91 Day(s) 20 Day(s) or more 20 Day(s) or more 20 Day(s) or more Quote Quote Quote 91 Day(s) Quote 20 Day(s) or more Quote Quote 91 Day(s) 20 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 91 Day(s) Quote 4 Day(s) or more 4 Day(s) or more Same day or more Quote 4 Day(s) or more Quote 20 Day(s) Quote Quote Quote Quote Quote Quote Quote 4 Day(s) or more
                                                                                          Number Of Inputs8 ~ NA-4 ~ 16-8 ~ 324 ~ NANA16 ~ 648 ~ 64-8 ~ 3216 ~ NA--4 ~ 816 ~ 322 ~ 16-4 ~ NA168 ~ 16--1616 ~ 6416 ~ 96104 ~ 16---1 ~ 88 ~ 24NA-4 ~ 16--322 ~ 8--16 ~ 641632
                                                                                          Input FormatDC input / AC input-------DC input / AC input--DC input---DC input---AC input-----DC input / AC input / AC/DC input--DC input-DC inputDC inputDC input-----------DC input
                                                                                          Rated Input Voltage(V)DC5 ~ AC100 to 240-DC24V-DC5V ~ VAC 100–120DC5V ~ NADC24V ~ (Not applicable)DC5 ~ DC2424 ~ 200 to 240-DC24DC5/24--DC-10~+1024DC24V-DC24V ~ Not available100-120AC100 to 120 ~ AC 100–240--DC48/AC48DC5 ~ DC2424 ~ 200 to 240-12 to 24 ~ 24DC13 to 30DC20.4 to 28.8-12–24-(Not applicable) ~ Not available-18-30 DC ~ 24 DC--AC100 to 120 ~ AC200 to 240DC24V--DC5/DC12DC2412–24 ~ 24
                                                                                          Input answer timeLess than 10 to 20 mS / Less than 50 to 100 mS----------Less than 1 mS / Less than 10 to 20 mS---Less than 50 to 100 mS---Less than 50 to 100 mS-------------------------
                                                                                          Number of Outputs8 ~ NA2 ~ 84 ~ 168 ~ 32-0 ~ NA24 ~ NA--8 ~ 647 ~ 3216 ~ NA8 ~ 64-416 ~ 32--2 ~ NA32--4 ~ 16--8 ~ 966----18 ~ 328 ~ 164 ~ 32--16 ~ 64-2 ~ 8----32
                                                                                          Output FormatRelay contact output / Triac output / Transistor / source output / Transistor / sync output / Other----Relay contact output / Triac output / Transistor / source output / Transistor / sync output / OtherRelay contact output / Transistor / source output--Relay contact output / Triac output / Transistor / source output / Transistor / sync output-Relay contact output / Transistor / source output / Transistor / sync outputTransistor / sync output-Transistor / sync outputTriac output / Transistor / source output / Transistor / sync output--OtherRelay contact output / Transistor / source output / Transistor / sync output-----Relay contact output / Triac output / Transistor / source output / Transistor / sync outputTransistor / sync output-Transistor / source output / Transistor / sync output---Relay contact output / Transistor / source output / Transistor / sync outputRelay contact output / Triac output / Transistor / source output / Transistor / sync outputOther---------Relay contact output / Transistor / sync output / Other
                                                                                          Rated load voltage(V)DC5 to 24 ~ AC100~240-DC12/24V ~ DC24V/AC240V-------DC 12–24-DC5 to 12 ~ AC240-DC-10~+10 ~ DC5~2412/24 ~ 100 to 240 AC---12 ~ 240 AC--DC12/24V ~ AC250V/DC30V--------5-------DC12/24V ~ AC250V/DC30V-----
                                                                                          Protection functionNone / Input protection function / Output protection function--------Output protection function-None---None---None-------------------Output protection function-----
                                                                                          Connection TerminalTerminal Block / Connector / Europe terminal block-------Terminal Block / ConnectorTerminal Block / Connector-Europe terminal block--Terminal block/connectorTerminal Block / Connector---Terminal Block-----Terminal Block / ConnectorConnector-Terminal Block-ConnectorTerminal Block / ConnectorTerminal Block-Terminal Block / Connector---------Terminal Block
                                                                                          Representative StandardCE / UL / CULULCE / ULCE / ULCE / ULCE / UL / CULCE / UL / CULCE / ULCE / UL / CUL / CSACE / UL / CUL / CSACE / ULCE / UL / CUL / OtherCE / ULCE / ULCE / UL / CULCE / UL / CUL-CE / ULCECE / UL / CULCE / UL--CE / ULCE / ULCE / UL / CUL / CSACE / UL / CUL / CSACE / UL / CUL / CSACE / UL / CULCE / ULCE / UL / CUL / CSACE / UL / CUL / CSACE / UL / CSA-CE / UL / CUL / CSA-CEUL / CULCE-CE / UL-CE / UL--

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