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AJMRTC Modbus RTU 8DI 8DO Digital IO Module, Industrial RS485 Input Output Controller, DC 7-36V Wide Voltage, Optocoupler Isolation, 500mA Sinking Open-Drain Output, DIN Rail Mount, TVS & Fuse Protect
- - 8-channel digital input and 8-channel sinking open-drain digital output
- - Modbus RTU protocol over RS485, easy to connect with PLC, HMI and host controller
- - Optocoupler isolation separates internal and external circuits to block interference
- - Wide DC 7V~36V power supply range, adapts to various industrial power systems
- - TVS and fuse protection onboard, anti-surge and short-circuit protection
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Overview
Specs
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AJMRTC 8DI 8DO Modbus RTU IO module is an industrial digital acquisition and control unit based on RS485 bus. It collects switching signals from limit switches, proximity sensors and buttons, and outputs control signals to drive relays, indicators and other actuators. Each channel adopts optocoupler isolation for reliable anti-interference performance. The open-drain sinking output supports max 500mA per channel. It supports DIN rail installation for cabinet deployment. It is widely used for factory automation, remote signal acquisition, equipment interlock control and Modbus IoT control systems.
Specifications
- Communication: RS485, Modbus RTU
- Digital Input: 8DI
- Digital Output: 8DO, sinking open-drain, 500mA per channel
- Isolation: Optocoupler isolation
- Power Supply: DC 7V ~ 36V
- Protection: TVS diode, fuse, reverse connection protection
- Mounting: DIN rail mount
- Baud Rate: 1200 ~ 115200bps configurable
- Working Temperature: -20 ~ +75
- Application: Industrial automation, sensor signal acquisition, relay control, Modbus IoT
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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Return Policies
- Return for refund within: 30 days
- Return for replacement within: non-replaceable
- This item is covered by ConnectFlow USA Return Policy
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