Siemens ET 200S Manual page 177

Byte x+8
Byte x+9
Byte x+10
Byte x+11
Byte x+12 to x+15 "0" (channel 0)
Byte x+16 to x+19 "0" (channel 1)
Byte x+20
Byte x+21 to x+23 "0" (channel 2)
Byte x+24 to x+27 "0" (channel 3)
Figure 6-31
Distributed I/O System ET 200S
EWA 4NEB 780 6024-02 07
7 6 5 4 3 2 1 0
0 1 1 1 1 0 1 1
Input channel = 7B
7 6 5 4 3 2 1 0
0 0 1 0 0 0 0 0
Length of the channel-specific diagnosis = 32 bits
7 6 5 4 3 2 1 0
0 0 0 0 0 1 0 0
Number of channels per module = 4
7 6 5 4 3 2 1 0
0 0 0 0 0 1 0 0
Diagnostic event on channel 2
7 6 5 4 3 2 1 0
0 0 0 0 0 0 1 0
Bit x+20.1 = error type 1 on channel 2 = short circuit
Example of a Diagnostic Interrupt (Continued)
Commissioning and Diagnostics
H
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