Product features
• Serial interface RS232.
RS 422/485-A or Current Loop
• Full-duplex operation
• High interference immunity
Short description
Serial interface modules of the SX 2x0/A series are used as an option directly in a CP 23x or in a CP 26x CPU module.
They enable the connection of an RS 232. RS 422/485-A or Current Loop serial interface. This interface operates in full
duplex mode with a maximum transmission rate of 115.000 baud.
The Current Loop interface (SM 220/A) functions both for transmitter as well as for the receiver in active or passive ope
ration. The operating mode is switched on the side on the PCB via DIP switches.
Interfaces to CPU module
SX 210/A SX 220/A SX 230/A
Type of interface Option-module interface
Power consumption 0.2 W; supply
via CPU module
1.0 W; supply
via CPU module
0.1 W; supply
via CPU module
Module detection Yes (no type detection)
Mechanical data
Structure Front plate mounted directly on PCB; without housing
Protection rating IP20 if the module is plugged into the CPU module
Weight 31 g
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
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