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Beijer ST-121F Digital input module

Beijer ST-121F Digital input module

The FnIO S series is a micro modular remote IO-system from Crevis, which contains a wide selection of digital and analog modules as well as special modules. Together with a selected bus/ node module, the system is easily combined to make standalone IO-nodes.

The IO-system, which has an IP20 enclosure, is installed on a standard 35 mm DIN rail. Stable communication between the modules in the node is guaranteed via a unique sliding contact system.

A standard IO module is only 12 mm in width, and when using 16 channel IO modules a complete node is made up of 64 IOs of only 90 mm in width.

The FnIO S series supports known bus systems such as Profibus DP/V1, CC-Link, CANopen, Modbus-TCP, Modbus-RS232, and Modbus-RS485.


Inquire about the Beijer ST-121F Digital input module, designed for industrial automation solutions. Feel free to get in touch with our sales team to give you the best solutions at the best global price in the Middle East (UAE (Dubai), KSA (Al Khobar, Riyadh), and Oman).

Beijer module : Power Requirements
Current consumption45 mA @ 5.0V DC
Beijer module : Input specification
Input typeSink Type (Positive Logic)
Number of inputs16
ON -state voltageON -state voltage 12/24 V DC (10.2-28.8V)
OFF-state voltageMax. 5V DC
ON-state currentMax. 6 mA @28.8VDC
Nominal input impedanceTypical 5.1 kΩ
Input delayOFF to ON: Max. 3ms / ON to OFF: Max. 3ms
Filtering timeTypical 1.5ms (software filtering)
Beijer module : Output specification
I/O connector2x10 pin connector
Beijer module : Physical Characteristics
Module weight70 g
Mounting35mm DIN rail
System indicators16 green input state, 1 green/red Bus state
Humidity5-90% non-condensing
Operating temperature-20° to + 55°C
Storage temperature-40° to + 85°C
Operator Panels : Physical Characteristics
Mechanical size12 mm x 99 mm x 70 mm

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