Siemens SIMATIC ET 200SP IM 155-6 PN/2 HF, Manual, Page: 46 / 57

Interrupts, error messages, diagnostics and system alarms
5.3 Alarms
Interface module IM 155-6 PN/2 HF (6ES7155-6AU01-0CN0)
Manual, 10/2018, A5E03915895-AH
45
USI structure = W#16#0004
Table 5- 10 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#0006
Table 5- 11 USI structure = W#16#0006
Data block name Content Comment Bytes
USI W#16#0006 Manufacturer-specific diagnostics if an ET 200SP I/O mod-
ule is installed on an incorrect BaseUnit.
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 the slot for the I/O module:
Slot W#16#0001 to
W#16#0040
Bit 8 to 15 1
Bit 0 to 7 1
Followed by 2 reserved bytes:
Reserved 1
Reserved 1