Status/Status Var Test Function - Siemens SIMATIC S5-115U User Manual

S5-115U Manual
4.3.4

STATUS/STATUS VAR Test Function

The STATUS and STATUS VAR test functions indicate signal states of operands and the RLO.
Depending on when the signal states are observed, a distinction is made between program-
dependent signal status display (STATUS) and direct signal status display (STATUS VAR).
Scan trigger
STATUS
=A 2.0 1 1
Figure 4-2. Comparison of the "STATUS" and "STATUS VAR" Test Functions
EWA 4NEB 811 6130-02b
ontrol
m in
P 5
Transfer
data
PLC System Start-Up and Program Test
Scan trigger
Control
program in
STEP 5
Transfer
data
STATUS
VAR
MW 2 KH=F107
4-9