SFAR-S-8DI8DO

Modbus I/O Module
SfAR-S-8DI8DO is a controller’s I/O extension, which, thanks to its unique features, fits a variety of applications, for example, measuring a working time of devices.

8 Digital Inputs & 8 Digital Outputs
The module has 8 digital inputs (DI) and 8 digital outputs (DO). Digital inputs can work as fast pulse counters with up to 1000 counts per sec, or timers measuring the ON state and offering a possibility to connect 2 encoders. Digital inputs support both PNP and NPN input types. Digital outputs are PNP transistor outputs. All inputs and outputs are isolated from the logic with optoisolators.

Simplified Configuration and Commissioning Process
A built-in RS485 interface allows an easy connection over the Modbus RTU/ASCII protocol. A 32-bit ARM core processor provides fast processing and communication.
The module is equipped with a set of LEDs used to indicate the status of I/Os, power supply, and RS485 communication.
Configuration of the module is carried out with our free software, the SfAR Configurator. A built-in mini USB allows for performing a primary configuration of the unit without an additional power supply.
To simplify the installation, the module has been equipped with the Quick Connector system. Using a dedicated SfAR-S-LINK cable allows for connecting up to 10 modules, which provide both RS485 communication and external power supply.

Technical Specification

Hardware Specification
RS485 interface
mini USB type B interface
Status LED indicators
DIN rail mounted
Quick Connector system

Inputs
8 Digital Inputs (DI)
PNP or NPN
Counter and timer functions
Up to 2 encoders support
Opto-isolated from RS485 and power supply

Outputs
8 Digital Outputs (DO)
PNP
30 V DC, 500 mA
Opto-isolated from RS485 and power supply

Communication
Modbus RTU/ASCII
Dedicated TCP/IP to Modbus RTU/ASCII gateway device, SfAR-S-ETH
Free software – SfAR Configurator

Power Supply
10-38 V DC ± 20%
10-28 V AC ± 20%