SFAR-1M-4DI User Manual
Version 3.0 www.gc5.pl Page 4/ 13
1. Safety rules
1. Refer to this manual before the first use
2. Make sure that all cables are connected properly before the first use
3. Please ensure proper working conditions, according to the device specifications
(e.g., supply voltage, temperature, maximum power consumption)
4. Turn the power supply off before making any modifications to wiring connections.
2. Module features
2.1. Purpose and description of the module
2DI2DO Module is an innovative device that provides a simple and cost-effective extension
of the number of lines of input in popular PLCs.
The module has 2 Digital Inputs with configurable timer/counter option which allows to
connect one encoders. All inputs are isolated from the logic by optocouplers. Each channel
can be individually configured in one of several modes.
This module is connected to the RS485 bus with twisted-pair wire. Communication is via
Modbus RTU or Modbus ASCII. The use of 32-bit ARM core processor provides fast
processing and quick communication. The baud rate is configurable from 2400 to 115200.
The module is designed for mounting on a DIN rail in accordance with DIN EN 5002.
The module is equipped with a set of LEDs to indicate the status of inputs and outputs which
is useful for diagnostic purposes and helping to find errors.
Module configuration is done via USB by using a dedicated computer program. You can also
change the parameters using the Modbus protocol.
