Siemens IM 155-6 PN ST - USI Structure W#16#0004; USI Structure W#16#0005

Interrupts, diagnostics, error, and system messages
5.3 Alarms
IM 155-6 PN ST interface module (6ES7155-6AU01-0BN0)
Manual, 04/2017, A5E03576904-AE
39
USI structure = W#16#0004
Table 5- 11 USI structure = W#16#0004
Data block name
Content
Comment
Bytes
USI
W#16#0004 Manufacturer-specific diagnostics with missing server
module
Result: Station stop
• The I/O modules fail → substitute value behavior
• The interface module continues to exchange data with
the IO controller.
2
Followed by 4 reserved bytes:
Reserved
1
Reserved
1
Reserved
1
Reserved
1
USI structure = W#16#0005
Table 5- 12 USI structure = W#16#0005
Data block name
Content
Comment
Bytes
USI
W#16#0005 Manufacturer-specific diagnostics if more than one I/O
module has been pulled. The number of pulled I/O mod-
ules is displayed.
Result: Station stop
• The I/O modules fail → substitute value behavior
• The interface module continues to exchange data with
the IO controller.
2
The number of pulled I/O modules follows
Quantity W#16#0002 to
W#16#0020
Bit 8 to 15
1
Bit 0 to 7
1
Followed by 2 reserved bytes:
Reserved
1
Reserved
1