Specifications

SIMATIC Instructions
9-6
S7-200 Programmable Controller System Manual
C79000-G7076-C233-01
Output
When the Output instruction is executed, the output bit
in the process image register is turned on.
In LAD and FBD, when the output instruction is
executed, the specified bit is set to equal to power flow.
In STL, the output instruction copies the top of the stack
to the specified bit.
Inputs/Outputs Operands Data Types
bit I, Q, M, SM, T, C, V, S, L BOOL
Input (LAD) Power Flow BOOL
Input (FBD) I, Q, M, SM, T, C, V, S, L, Power Flow BOOL
Output Immediate
When the Output Immediate instruction is executed, the
physical output point (bit or OUT) is set equal to power
flow.
The “I” indicates an immediate reference; the new value
is written to both the physical output and the
corresponding process-image register location when the
instruction is executed. This differs from the
non-immediate references, which write the new value to
the process-image register only.
In STL, the output immediate instruction copies the top of
the stack to the specified physical output point (bit)
immediately.
Inputs/Outputs Operands Data Types
bit Q BOOL
Input (LAD) Power Flow BOOL
Input (FBD) I, Q, M, SM, T, C, V, S, L, Power Flow BOOL
= bit
bit
=
222 224
333
221
S
T
L
F
B
D
L
A
D
bit
L
A
D
S
T
L
=I bit
bit
I
F
B
D
=I
222 224
333
221
bit