Siemens SIMATIC S5 Manual page 170

Testing and Simulation with COM 265
Specify signal states
A signal state change from "0" to "1" may be specified for:
• IP 265 inputs and binary input parameters in the input bar
• Isolating points in the logic field
Object
IP 265 input
(without loopback)
Looped-back IP 265 input
Bit input parameter
Isolating point
All of the above settings can be revoked by pressing the appropriate function key
( Section 10.1.4).
Note
A change in the signal state of a looped-back IP 265 input via <F4> "Trigger" affects
the control system flowchart only when the programmed delay time has expired.
10-12
Table 10-2. Triggering a Signal State Change
Signal state change can be triggered by:
Possibility 1 (for direct and symbolic identifiers):
Position cursor to identifier
Press <F2> "Value"
Possibility 2 (for direct and symbolic identifiers):
Enter the direct address using the numeric keys.
The IP 265 input need not be selected via the cursor.
Example: The signal state of input I 0.5 is changed by entering
<0>+<5>.
Value range: <0>+<0> ... <2>+<3>
Position cursor to direct or symbolic identifier
Press <F4> "Trigger"
Position cursor to direct or symbolic identifier
Press <F2> "Value"
Press the key for the letter with which the isolating point is
marked.
The cursor need not be set to the isolating point.
Value range: <a> to <z>
IP 265
EWA 4NEB 812 6130-02a