Siemens SIMATIC S5 User Manual

S5-115F Manual Program Test
4 Program Test
Use the following test functions to find and eliminate logic errors in program scanning.
Note
Test blocks are not possible with the S5-115F.
4.1 Signal Status Display
Two test functions indicate operand signal states and the result of the logic operation (RLO).
Depending on when signal states are examined, a distinction is made between program-
dependent signal status display (STATUS) and direct signal status display (STATUS VAR).
control
am in
P 5
Transfer data
Scan trigger
STATUS
= A 2.0 1 1
Transfer data
Scan trigger
Control
program in
STEP 5
STATUS
VAR
Figure 4-1. Comparison of the ”STATUS” and ”STATUS VAR” Test Functions
EWA 4NEB 811 6149-02 4-1

Siemens SIMATIC S5 Specifications

General

Product type designation	SIMATIC S5
Programming language	STEP 5
Digital inputs	Varies by model
Digital outputs	Varies by model
Analog inputs	Varies by model
Analog outputs	Varies by model
Supply voltage	24V DC
CPU Type	Varies by model
Memory	Varies by model
Digital I/O	Varies by model
Analog I/O	Varies by model
Communication	PROFIBUS
Operating Temperature	0°C to 60°C
Relative Humidity	5% to 95% (non-condensing)