SFAR-S-16DI-M

Modbus I/O Module
SfAR-S-16DI-M is a controller’s I/O extension, which, thanks to its unique features, fits a variety of applications, for example, counting pulse signals from flowmeters.

16 Digital Inputs
The module has 16 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 offering a possibility to connect 2 encoders. The SfAR-S-16DI-M module comes with a FRAM memory, allowing a user to save states of counters or timers in case of a power loss. Digital inputs support both PNP and NPN input types. All inputs are isolated from the RS485 and power supply.

Simplified Configuration and Commissioning Process
A built-in RS485 interface allows easy connection over 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
16 Digital Inputs (DI)
PNP or NPN
Counter and timer functions
Up to 2 encoders support
FRAM memory
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%