Modbus/RS-485 Isolated Digital Input Board 4 Channels 5/12/24V Input Current Source/Sink 12/24V Power

This board module reads 5-24 V digital voltage signals via Modbus. It can be read easily from PLCs, industrial PCs, and similar host devices.

Features

Supports Modbus RTU. It can be added to an existing RS-485 bus.
Simple registers make configuration and programming easy.
The power, communication, and measurement sections are isolated, making the board resistant to noisy environments and suitable for a wide range of installation sites.
The free td-modbus command is provided for operation checks and initial setup.
The optional TDAC-DMK mounting kit enables DIN rail mounting.
Designed in Japan. Volume production, customization, and support are available.

Item	Value	Notes
Input signal	5-24 V digital signal
Number of channels	4	CH1-CH4
Input type	Photocoupler-isolated input, compatible with both current source and current sink wiring
Input logic	Non-inverting	Input H is read as `1`, and input L is read as `0`
Debounce	Yes	Configurable from `0-100 ms` via Modbus RTU
Factory default debounce time	`5 ms`	Common to all channels
Readout method	Discrete Inputs / Input Register	FC02 or FC04
Communication standard	Modbus RTU (RS-485 half-duplex)
Modbus termination resistor	Not installed
Factory default communication settings	Slave Address `1`, `9600 8E1`
Power jack	5.5 mm outer diameter, 2.1 mm inner diameter, center-positive, or terminal block
Isolation	Power section, communication section, and measurement section
Power supply	12 - 24 V DC
Current consumption	30 mA typ., 150 mA max.
Operating temperature range	0 - 55 C
Board dimensions	W:80 D:60 H:18	mm. Excluding protrusions

Modbus digital input board, Modbus 5V 12V 24V, Modbus digital signal, Modbus IO board

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In Stock: 2