Siemens CPU 948 Programming Manual page 122

Simatic s5 s5-155u
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Supplementary Operations
Binary logic operations
Table 3-11
Binary logic operations with formal operands
Operation
Operand
A
=
AN
=
O
=
ON
=
Digital logic operations
Table 3-12
Digital logic operations
Operation
Operand
AW
OW
XOW
3 - 50
Function
AND operation, scan a formal operand for signal state '1'
AND operation, scan a formal operand for signal state '0'
OR operation, scan a formal operand for signal state '1'
OR operation, scan a formal operand for signal state '0'
Insert formal operand
Inputs, outputs, data and flags addressed in binary (parameter
types: I, Q; data type BI) and timers and counters (parameter
type: T, C) are permitted as actual operands.
Function
AND operation on the contents of ACCU-1-L and ACCU-2-L
OR operation on the contents of ACCU-1-L and ACCU-2-L
Exklusive OR operation on the contents of ACCU-1-L and
ACCU-2-L
ACCUs 2, 3 and 4 are not affected, however, the condition codes
CC 1 and CC 0 are affected (see word condition codes).
CPU 948 Programming Guide
C79000-G8576-C848-04

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