Siemens Simatic S7-300 - Structure of Module Diagnostics of CPU 31 X-2

Testing functions, Diagnostics and Fault Elimination
S7-300 Programmable Controller Hardware and Installation
A5E00105492-01
10-25
Module diagnostics
Module diagnostics indicate the configured address area of transfer memory that
has received an entry.
Byte 6
7654 3210BitNo
length of the module diagnostics incl. Byte 6
(dependent on the number of configured
address areas up to 6 Byte)
Byte 7
Entry for 2nd configured address area
Entry for 3rd configured address area
Entry for 4th configured address area
Entry for 5th configured address area
Byte 8
Entry for 6th to 13th configured address area
01
Entry for 30th configured address area
Entry for 31th configure address area
Preset actual configurtation¹
Code for module diagnostics
Entry for 1st configured address area
Entry for 14th to 21th configured address area
Byte 9
Byte 10
Entry for 22th to 29th configured address area
Byte 11
Entry for 32th configured address area
00 000
Preset actual configurtation or Slave CPU in¹
Preset actual configurtation¹
76 5432 10BitNo.
76 5432 10BitNo
76 5432 10BitNo.
76 543210BitNo.
76 543210 BitNo
Figure 10-8 Structure of module diagnostics of CPU 31x-2