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Modbus RTU (RS-485)

Modbus RS-485 input and output modules

In this part of our store you will find industrial I/O modules with Modbus communication protocol and RS-485 interface, used to extend existing systems with additional resources of digital or analog inputs / outputs. Extension modules are most often used in control systems in which the central units are PLC or industrial computers, therefore the RS485 interface and the Modbus RTU protocol are used for communication.

Learn more about Modbus RS-485 I/O modules

Our I/O modules are devices that communicate with the most popular PLC devices and devices that support the MODBUS MASTER protocol. In addition, they have (depending on the model) digital or analog inputs and convenient wire connectors.

For your convenience, we have divided the input and output modules into three basic categories depending on the type of inputs and outputs they support and having a temperature input. Thanks to this division, your purchases will be easier and you will find faster the Modbus RS-485 module that interests you.

LC-103 CR LC-103 CR
2-3 weeks
Brand: ICPDAS Model: LC-103 CR
1-channel AC Digital Input and 3-channel Relay Output Lighting Control Module. The LC-103 is an easy-to-use lighting control module that requires no specialist skills to install and operate, and no software is needed in order to control the DO channels. The LC-103 provides 1 channel for digital i..
341,94 zł
LC-101 CR LC-101 CR
2-3 weeks
Brand: ICPDAS Model: LC-101 CR
1-channel AC Digital Input and 1-channel Relay Output Lighting Control Module with screw mount. The LC-101 is an easy-to-use lighting control module that requires no specialist skills to install and operate, and no software is needed in order to control the DO channels. The LC-101 provides 1 channel..
351,57 zł
MOD-2I2O MOD-2I2O
2-3 days
Brand: Aspar Model: MOD-2I2O
Industrial expansion module, 2 digital inputs and 2 digital outputs on Modbus RTU, with RS485 interface. Features:INPUT/OUTPUT: 2 digital inputs/2 digital outputsOUTPUT/INPUT: RS485 - Modbus Slave (ASCII, RTU)Mount: DIN rail2 configurable 32-bit countersCounter modes: pulse counter, timer or enc..
351,57 zł
MOD-4DI MOD-4DI
2-3 days
Brand: Aspar Model: MOD-4DI
Industrial expansion module, 4 digital inputs on Modbus RTU, with RS485 interface. Features:INPUT: 4 digital inputsOUTPUT: Interface: RS485 - Modbus (ASCII, RTU)Mount: DIN rail4 configurable 32-bit countersCounter modes: impulse counter; timer; encoderInputs of PNP or NPN type depending on the c..
351,57 zł
MOD-4DO MOD-4DO
2-3 days
Brand: Aspar Model: MOD-4DO
Industrial expansion module, 4 digital outputs on Modbus RTU, with RS485 interface. Features:OUTPUT: 4 digital outputsINPUT: RS485 - Modbus Slave (ASCII, RTU)Mount: DIN railOutputs type PNP, 250mAWatchdog functionComfortable connectors for cables (up to 2.5 mm2)Configuration: free Modbus Configu..
351,57 zł
LC-101DIN CR LC-101DIN CR
2-3 weeks
Brand: ICPDAS Model: LC-101DIN CR
1-channel AC Digital Input and 1-channel Relay Output Lighting Control Module with DIN rail mount. The LC-101 is an easy-to-use lighting control module that requires no specialist skills to install and operate, and no software is needed in order to control the DO channels. The LC-101 provides 1 chan..
361,20 zł
MOD-1AI MOD-1AI
2-3 days
Brand: Aspar Model: MOD-1AI
Industrial expansion module with 1 input for current measurement and 1 input for voltage measurement on Modbus RTU, with RS485 interface. Features:INPUT: 1 input for current measurement, 1 input for voltage measurementOUTPUT: Interface: RS485 - Modbus (ASCII, RTU)Operation of voltage input 0~10V..
385,28 zł
MOD-1AO MOD-1AO
2-3 days
Brand: Aspar Model: MOD-1AO
Industrial expansion module, 1 current output 0 ~ 20mA or 4 ~ 20mA, 1 voltage output 0 ~ 10VDC on Modbus RTU, with RS485 interface. Features:OUTPUT: 1 current output 0 ~ 20mA or 4 ~ 20mA, 1 voltage output 0 ~ 10VDCINPUT: Interface: RS485 - Modbus (ASCII, RTU)2 PNP or NPN inputs2 configurable 32-..
385,28 zł
MOD-1TE MOD-1TE
2-3 days
Brand: Aspar Model: MOD-1TE
Industrial expansion module, 1 universal temperature input for Modbus RTU, with RS485 interface. Features:INPUT: 1 temperature input, universalOUTPUT: Interface: RS485 - Modbus (ASCII, RTU)Support for thermoresistive sensors PT100, PT500, PT1000, NI100, KTY81-110 (2 or 3 wire connection)Operatio..
385,28 zł
MOD-4DI-M
2-3 days
Brand: Aspar Model: MOD-4DI-M
Industrial expansion module, 4 digital inputs with FRAM memory to Modbus RTU, with RS485 interface. Features:INPUT: 4 digital inputs with memoryOUTPUT: RS485 - Modbus Slave (ASCII, RTU)Mounting on a DIN rail4 configurable 32-bit countersFRAM - non-volatile random-access memoryCounter modes: puls..
409,36 zł
tM-P3R3 CR tM-P3R3 CR
2-3 weeks
Brand: ICPDAS Model: tM-P3R3 CR
3-channel Isolated Digital Input and 3-channel Relay Output Module.The tM-P3R3 provides 3 channels for digital input and 3 channels for relay output, each of which features photocouple isolation. All output channels are form A type relays, while input is based on sink- or souce-type using a wire con..
467,15 zł
SC-4104-W1 CR SC-4104-W1 CR
2-3 weeks
Brand: ICPDAS Model: SC-4104-W1 CR
Lighting Control Module with 1-channel AC Digital Input, 4-channel Relay Output and 1-channel Thermistor Input. SC-4104-W1 is an easy-to-use smart control module. It can be used in small FCU control system and small lighting control system. SC-4104-W1 requires no specialist skill to install and oper..
471,97 zł
tM-R5 CR tM-R5 CR
2-3 weeks
Brand: ICPDAS Model: tM-R5 CR
5-channel Relay Output Module.The tM-R5 provides 5 channels for relay output. All output channels are Form A type relays and there are options for configuring power-on and safe digital output values. 4 kV ESD protection and 3750 VDC intra-module isolation are also provided.Features:Modbus RTU and DC..
481,60 zł
tM-DA1P1R1 CR tM-DA1P1R1 CR
2-3 weeks
Brand: ICPDAS Model: tM-DA1P1R1 CR
1-channel Isolated Analog Output, 1-channel Isolated Digital Input and 1-channel Relay Output Module.The tM-DA1P1R1 is an RS-485 Interface module that offers 1 analog output channel, 1 digital input channel and 1 relay output channel. Analog output resolution is 12-bit with an output range of 0~10V ..
539,39 zł
MOD-16I
2-3 days
Brand: Aspar Model: MOD-16I
Industrial expansion module, 16 digital inputs on Modbus RTU, with RS485 interface. The module communicates with all commercially available PLCs, devices that support the popular MODBUS MASTER protocol. The module has 16 digital inputs with counter option. In addition, the IN1 and IN2 and IN3 and IN..
553,84 zł
MOD-16O-PNP MOD-16O-PNP
2-3 days
Brand: Aspar Model: MOD-16O-PNP
Industrial expansion module, 16 digital outputs on Modbus RTU, with RS485 interface. Features:OUTPUT: 16 digital outputs PNPINPUT: RS485 - Modbus Slave (ASCII, RTU)Mounting on a DIN railDefault configurable output states when power is turned onPNP type outputs with maximum current up to 0.5ABuil..
553,84 zł
MOD-16RO MOD-16RO
2-3 days
Brand: Aspar Model: MOD-16RO
Industrial expansion module, 16 relay outputs on Modbus RTU, with RS485 interface. Features:OUTPUT: 16 relay outputsINPUT: RS485 - Modbus Slave (ASCII, RTU)Mount: DIN railDomyślnie (konfigurowalne) stany wyjść po włączeniu zasilaniaMaximum current 3A 250V AC / per COM (module has 4 terminals COM..
553,84 zł
MOD-6RO MOD-6RO
2-3 days
Brand: Aspar Model: MOD-6RO
Industrial expansion module, 6 relay outputs on Modbus RTU, with RS485 interface. Features:OUTPUT: 6 relay outputsINPUT: RS485 - Modbus Slave (ASCII, RTU)Default configurable output states when power is turned onOutputs both NO and NC typeMaximum current 5A 250V ACMaximum current 10A 24V DCLarge..
553,84 zł
MOD-8I8O MOD-8I8O
2-3 days
Brand: Aspar Model: MOD-8I8O
Industrial 8-channel Input and 8-channel Digital Output Module to Modbus RTU, with RS485 interface. Cechy:INPUT / OUTPUT: 8 digital inputs, 8 PNP outputsOUTPUT / INPUT: RS485 - Modbus Slave (ASCII, RTU)Mounting on a DIN rail8 configurable 32-bit countersCounter modes: pulse counter, timer, encod..
553,84 zł
MOD-8I8RO MOD-8I8RO
2-3 days
Brand: Aspar Model: MOD-8I8RO
Industrial expansion module, 8 digital inputs and 8 relay outputs on Modbus RTU, with RS485 interface. Features:INPUT / OUTPUT: 8 digital inputs, 8 relay outputsOUTPUT / INPUT: RS485 - Modbus Slave (ASCII, RTU)Mounting on a DIN rail8 configurable 32-bit countersAbility to connect 2 encodersInput..
553,84 zł
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