Product features

• Serial interface modules

(RS 232-C, RS 422/485-A, Current Loop)

• Full-duplex operation

• SSI interface module

• High interference immunity

• Electronic parameter chip

Short description

The SM 2×0/A series consists of serial and SSI interface modules that can be attached directly to a CPU

module or operated with all KEBA control systems by means of bus couplers.

SM 210/A and SM 230/A are serial interface modules and enable the connection of two RS 232-C or RS

422/485-A serial interfaces. The two communication channels function independent of one another in

full-duplex operation.

SM 220/A is a serial interface card. This module enables the connection of a serial 20 mA Current Loop

interface. The interface functions both for the transmitter as well as for the receiver in active or passive

operation. DIP switches areprovided on the front for switching the operating mode. At a maximum

transmission rate of 9.6 kbits/s, a line length of up to 1.000 m is possible.

SM 250/A is an SSI interface module that enables the connection of up to 4 position measuring systems

and is equipped with sensor failure detection.

Environmental conditions

Operating temperature +5 °C … +55 °C

Storage temperature-40 °C … +70 °C

Relative air humidity 10 % to 95 % (non-condensing)

Vibration resistance / shock resistance Acc. to EN 61131-2