Possible errors
If an error occurs, the system program sets the RLO to ’1’.
The errors listed in the following table can occur. If an error occurs,
the system program enters the error ID listed below in ACCU-1-L.
ID Meaning
8D01H
8D02H
illegal function no. in ACCU-2-L
1)
one of the reserved bits in ACCU 1 is ’1’
1)
1)
the incorrect value is located in ACCU-2-L
Scan control word
•• The status of the control word can be scanned with the following
program sequence:
1. load function no. ’2’ or ’3’ in ACCU-2-L,
2. load value ’0’ in ACCU 1,
3. call OB 141,
4. read out ACCU 1.
Table 6-9 Error IDs of OB 141 in ACCU-1-L
OB 141: "Disable Single Cyclic Timed Interrupts" On/Off
CPU 948 Programming Guide
C79000-G8576-C848-04
6 - 31
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