Call Parameters For Sfc 58 "Wr_Rec" And Sfc 59 "Rd_Rec; Error Information Of The Im 157 - Siemens Simatic 6ES7 157-0AD81-0 A0 Series Manual

Operation of the DP/PA Link and the Y Link
Parameters for SFC 58 "WR_REC" and SFC 59 "RD_REC"
The table below shows the required values for the call parameters, LADDR and
REC_NUM, and the error information that may be found in the return value,
RET_VAL.
Table 8-4

Call parameters for SFC 58 "WR_REC" and SFC 59 "RD_REC"

Diagnostic data of the IM 157
Identification data of the
IM 157
Buffered diagnostic data of an
underlying slave (from the
1)
IM 157)
Any record of an underlying
DPV1 slave
1)
Only on the DPV1 master and only for configured slaves
2)
Depends on type of underlying slave or underlying module
Table 8-5

Error information of the IM 157

RET_VAL (W#16#0)
0000
80BB
80BC
80BD
The additional functions of the SFC 58 "WR_REC", SFC 59 "RD_REC", SFB 52
"RDREC" and SFB 53 "WRREC" are described in the STEP 7 online help.
8-8
LADDR
Diagnostic address of the
IM 157
Diagnostic address of the
IM 157
Diagnostic address of the
IM 157
Logical address of the
underlying slave or the
underlying module
No error
Requested service is not supported
Node not available
Record number or faulty
REC_NUM
0 or 1
248 ... (see Section 8.5)
PROFIBUS address of the
underlying slave
2)
Record number
Description
DP/PA Link and Y Link Bus Couplings
A5E00193841-01 1
Access
Read only
Read/write
Read only
Read/
2)
write