Ob 132/133: Roll-Up Accu/Roll-Down Accu - Siemens CPU 948 Programming Manual

6.9

OB 132/133: Roll-Up ACCU/Roll-Down ACCU

Function
Parameters
Result Result
Possible errors
CPU 948 Programming Guide
C79000-G8576-C848-04

OB 132/133: Roll-Up ACCU/Roll-Down ACCU

OB 132 and OB 133 roll the ACCU contents up or down:
• • OB 132 (roll up) moves the contents of ACCU 4 to ACCU1, the
contents of ACCU 1 to ACCU 2, the contents of ACCU 2 to
ACCU 3 etc.
• • OB 133 (roll down) moves the contents of the ACCUs in the
opposite direction: the contents of ACCU 1 to ACCU 4, ACCU 4
to ACCU 3 etc.
None
Figs. 6-1 and 6-2 show the ACCU contents before and after calling
OB 132 and OB 133.
Note
With the STEP 5 operations ENT (extended operation set) and
TAK (system operation) the ACCU contents can also be shifted
(refer to Section 3.4.3).
None
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