Siemens CPU 312 IFM User Manual

CPU 31x-2 as DP Master/DP Slave and Direct Communication
2-9
PLC S7-300, CPU Specifications CPU 312 IFM to CPU 318-2 DP
A5E00111190-01
Diagnostic event
Read out OB82_MDL_ADDR
and
Read out OB82_IO_FLAG
(= identifier I/O module)
For diagnosis of the whole DP slave:
Call SFC 13

Enter the diagnostic address
“OB82_MDL_ADDR*” in the LADDR
parameter
Enter bit 0 of OB82_IO_Flag as bit
15 in OB82_MDL_ADDR
Result: Diagnostics address
”OB82_MDL_ADDR*”
For the diagnosis of the modules involved:
Call SFC 51

Enter the diagnostic address
“OB82_MDL_ADDR*” in the INDEX parameter
Enter the ID W#16#00B3 in the SZL_ID parameter
(=diagnostic data of a module)
CPU 315-2DP as of 6ES7 315-2AF03-0AB0
CPU 3162DP;
318-2
OB82 is called
For the diagnostics of the
respective modules:
call SFB 54 (in DPV1 mode)

Set MODE = 1
Diagnostic data is written to
the parameters TINFO and
AINFO.
only 318-2
Figure 2-2 Diagnostics with CPU 31x-2 (315-2DP as of 315-2AF03)

Siemens CPU 312 IFM Specifications

General

Brand	Siemens
Model	CPU 312 IFM
Category	Controller
Language	English