Siemens SIMATIC S5 Manual page 174

Testing and Simulation with COM 265
Additional aids:
• All language elements in a control system flowchart are numbered. The numbers are faded onto
the screen by the simulator.
• When digit keys (<00> to <23>) are used to change the signal state of IP 265 inputs, the first
digit (byte address) is displayed at the upper right of the screen.
• Because the simulator is clock-controlled, the signal state changes at IP 265 inputs and isolating
points and manipulations in actual values do not have an immediate effect. There is, in effect, an
intermediate stage in which the new signal levels are present but have not yet been applied. The
result of these manipulations do not become apparent until the next IP 265 "cycle".
The simulator displays signals which will take effect in the next IP 265 "cycle", using
- an exclamation point "!" to indicate a signal state change
and
- hatching to indicate manipulation of actual values.
Table 10-5. Displaying Signal and Value Manipulations
Symbol
• Displaying signal and value manipulations
Indicates a signal state change
!
which will take effect in the next
IP 265 "cycle"
Indicates the actual value of a timer,
3 counter or flipflop which will take
effect in the next IP 265 "cycle"
Indicates the actual value of an input
parameter or output parameter which
100
will take effect in the next IP 265
"cycle"
10-16
Description Example
1
1 - - -
I 0.0
!
> S
IW 66
TV
100
I 0.1 R Q
3
IP 265
Q 0.5
EWA 4NEB 812 6130-02a