Technical data

Table Of Contents
Organization Blocks
System Software for S7-300/400 System and Standard Functions - Volume 1/2
A5E00709327-01
1-47
OB86_EV_CLASS OB86_FLT_ID Meaning
B#16#39 B#16#C3 Distributed I/O devices: failure of a DP master system
Only incoming event causes the start of OB 86, with error code
B#16#C3. An outgoing event starts OB 86 with error code
B#16#C4 and event class B#16#38:
The return of every DP slave station starts OB86
OB86_MDL_ADDR: Logical base address of the DP master
OB86_Z23: DP master ID:
- Bit 0 to 7: Reserved
- Bit 8 to 15: DP master system ID
- Bit 16 to 31: Reserved
B#16#39/B#16#38 B#16#C4 Failure of a DP station
OB86_MDL_ADDR: Logical base address of the DP master
OB86_Z23: Address of the affected DP slave:
- Bit 0 to 7: No. of the DP station
- Bit 8 to 15: DP master system ID
- Bit 16 to 30: logical base address of an S7 slave or
diagnostic address of a standard DP slave
- Bit 31: I/O identifier
B#16#39/B#16#38 B#16#C5 Fault in a DP station
OB86_MDL_ADDR and OB86_Z23 as for FLT_ID=B#16#C4
B#16#38 B#16#C6 Expansion rack operational again, but still and error with module
parameters.
OB86_MDL_ADDR: Logical base address of the IM
OB86_Z23: contains a bit for each possible expansion rack:
- Bit 0: always 0
- Bit 1: 1st expansion rack
- :
- Bit 21: 21st expansion rack
- Bit 22 to 30: Reserved
- Bit 31: always 0
Meaning when bit set (in expansion rack concerned):
- Modules with incorrect type identifiers exist
- Modules with missing or incorrect parameters exist.
B#16#38 B#16#C7 Return of a DP station, but error in module parameter assignment
OB86_MDL_ADDR: Logical base address of the DP master
Address of the DP slave affected:
- Bit 0 to 7: No. of the DP station
- Bit 8 to 15: DP master system ID
- Bit 16 to 30: Logical base address of the DP slave
- Bit 31: I/O identifier