Siemens CPU 414-2 - Page 16

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 –