Testing And Simulation With Com 265; Off-Line Simulation Of The Ip 265 User Program; General Information On Simulation With Com - Siemens SIMATIC S5 Manual

IP 265
10

Testing and Simulation with COM 265

COM 265 provides many possibilities for testing the IP 265 user program and the execution of the
user program in the IP 265.
The COM 265 simulator makes it possible to simulate most of the interconnections in the IP 265
user program off-line, i.e. without using a PLC or IP 265 ( Section 10.1).
In a second step, the logically correct user program can be tested on-line under real-time
conditions (conditions governing subgroup control within the plant as a whole) in the PLC and with
process signals ( Section 10.2).
Independently of the IP 265 user program, you can also carry out a wiring test to check the
interfaces to the process ( Section 10.3).
10.1

Off-Line Simulation of the IP 265 User Program

Before loading it into the IP 265, the IP 265 user program should be tested off-line on the
programmer. This makes it possible to detect programming errors quickly without using process
I/Os.

10.1.1 General Information on Simulation with COM 265

COM 265 provides a special simulator which simulates the IP 265 in the programmer.
What can you do with the COM 265 simulator?
• Controller simulation
You can specify signal states for simulating the control system flowchart. The results of the
simulation are the control system flowchart's new signal states, which are displayed on the
programmer screen.
You can specify signal states "0" and "1" for
- IP 265 inputs
- binary input parameters and
- internal connections between COM 265 language elements.
You can also manipulate actual values for latching COM 265 language elements without having
to exit the simulator.
• Simple form of process simulation
You can loop IP 265 outputs in the control system flowchart back to IP 265 inputs. When this is
done, the output signal is looped back after a (configurable) delay, making it possible to simulate
e.g. limit switches.
EWA 4NEB 812 6130-02a
Testing and Simulation with COM 265
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