SFAR-1M-4DI

Modbus I/O module with 4 digital inputs, PNP or NPN type.

Modbus I/O Module
SfAR-1M-4DI is designed for production lines, with options to connect 2 encoders and count pulses from flowmeters. Perfect choice for applications with a need for counting or timing of digital inputs state.

4 Digital Inputs
The module has 4 digital inputs (DI). Digital inputs can work as fast pulse counters with up to 1000 counts per sec, or timers measuring the ON state and also offering a possibility to connect 2 encoders. Digital inputs support both PNP and NPN input types. 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.


 

Technical Specification

 

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

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

Communication
Modbus RTU/ASCII
Free software – SfAR Configurator

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

Inputs typeDigital
Communication protocolModbus RTU/ASCII
Power supply10 to 28 V AC, 10 to 38 V DC
IP40
Digital inputs4

 

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