Siemens Simatic M7-400 Manual do Utilizador Página 582

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Diagnostic Data of the Signal Modules
B-8
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
B.4 Diagnostic Data of the Digital Output Modules
as of Byte 2
The structure and contents of the different bytes of the diagnostic data for special
digital output modules are described below. The following general rule applies:
When an error occurs, the bit concerned is set to ”1”.
You will find a description of possible error causes and appropriate remedies in the
section called on the special module.
Bytes 2 and 3 of the SM 422; DO 16 20-125 VDC/1.5 A
Byte 2
76 0
Operating status 0: RUN
1: STOP
54321
0
Byte 3
76 0
EPROM error
54321
0
0
0
00 0
000 000
0
Figure B-8 Bytes 2 and 3 of the Diagnostic Data of the SM 422;
DO 16 x 20-125 VDC/1.5 A
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1 2 ... 577 578 579 580 581 582 583 584 585 586 587 ... 637 638

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