Registers
14
S7-400 Instruction List
A5E00267845-01
Status Word (16 Bits)
The status word bits are evaluated or set by the instructions.
The status word is 16 bits long.
Bit
Assignment
Description
0
FC
First check bit
1
RLO
Result of logic operation
2
STA
Status
3
OR
Or (AND before OR)
4
OS
Stored overflow
5
OV
Overflow
6
CC 0
Condition code 0
7
CC 1
Condition code 1
8
BR
Binary result
9 to 15
Unassigned
–