SDM-8I8O

Industrial 8-channel Input and 8-channel Digital Output Module to Modbus RTU, with RS485 interface.

Features:

• INPUT / OUTPUT: 8 digital inputs, 8 PNP outputs
• OUTPUT / INPUT: RS485 - Modbus Slave (ASCII, RTU)
• Mount: DIN rail
• 8 configurable 32-bit counters
• Counter modes: pulse counter; timer; encoder
• Inputs of PNP or NPN type depending on the connection
• PNP type outputs with maximum current up to 0.5A
• Built-in protection diode - Inductive loads without additional protection (contactors, relays, pneumatic and low power hydraulic solenoid valves)
• Watchdog function
• Galvanic isolation of inputs and outputs
• Large, convenient cable connectors (up to 2.5 mm2)
• Configuration: free software
• Housing height: 62mm
• 2 years warranty
• Made in Poland

The SDM-8I8O is an innovative device that provides simple and inexpensive extension of input and output lines in popular PLCs.

The module communicates with all commercially available PLCs, devices that support the popular MODBUS MASTER protocol.

The device has 8 digital inputs with configurable counter and 8 digital outputs. In addition, the IN1 and IN2 and IN3 and IN4 terminals can be used to connect two encoders. All inputs and outputs are isolated from logic using optocouplers. Each channel can be individually configured in one of several modes.

This module is connected to the RS485 bus via two wire twisted pair. Communication is made using the MODBUS RTU or MODBUS ASCII protocol. The use of a 32-bit ARM core processor provides fast data processing and fast communication. The transmission speed is configurable from 2400 to 115200.

The module is designed for mounting on DIN rail according to DIN EN 5002.

The module is equipped with a set of LEDs (Indicators), used to indicate the status of inputs and outputs, useful for diagnostic purposes and helping to find errors.

Configuration of the module is done via USB with a dedicated computer program. It is also possible to change parameters using the MODBUS protocol.