Function Description; Block Diagram; Module Features - Pilz PSSu K S RS232 Modbus ASCII Operating Manual

Function description

4 Function description
4.1

Block diagram

4.2

Module features

4.2.1 Function description
The module enables communication via a serial interface.
Module supply
The module supply provides the module with voltage.
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Periphery supply
The periphery supply provides the serial interface with voltage.
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Signal processing
In each cycle, a max. of 8 Bytes of data can be transferred in both directions between
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control system and module. The data to be transferred is stored temporarily in a send
and receive buffer.
Two additional status bytes and control bytes are available in the process image for
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data exchange between control system and module.
All the configuration data is stored in the head module and is assigned to the module on
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restart. This way the configuration data is retained even if you change the module.
Operating Manual PSSu K S RS232 Modbus ASCII
1001689-EN-05
Periphery
Supply
+ 24 V DC
Module
Supply
+ 5 V DC
Data
(ST)
(C-Rail)
13 23
11 12 21 22 14 24
RS232
11