Siemens SIMATIC S5 Manual page 75

IP 265
Wiring test
COM 265 offers the possibility of checking the wiring between the inputs/outputs of the IP 265 and
the sensors and/or actuators of the process interface system for continuity.
COM 265 provides the special "WIRE" user program for the IP 265 to check the wiring.
Program generation
The IP 265 user program is generated in four steps:
• Editing of the IP 265 user program
• Off-line simulation of the IP 265 user program
• Loading of the IP 265 user program into the IP 265
• On-line test of the IP 265 user program
Off-line simulation
With the aid of COM 265, the control of the relevant sub process by the IP 265 user program is
tested off-line. Possible program errors can quickly be detected and eliminated without the process
interface system being connected.
The user can simulate the IP 265 user program by means of test inputs and display the results of
the off-line test. The user specifies input signals for simulation. Changes of the output signals or
internal intermediate states in the IP 265 user program can be monitored on the programmer/PC
screen.
Loading
For the on-line test, the IP 265 user program must be available in the IP 265.
The IP 265 user program can be loaded into the IP 265
• via the remote I/O bus
or
• from the memory submodule on the module.
Loading of the memory submodule is recommended for normal operation. For on-line testing of
IP 265 program execution, loading via the external I/O bus is recommended.
Note
Loading the IP 265 via the external I/O bus is only possible with COM 265.
Note
When using the IP 265 together with the ET 200, the IP 265 user program can only be
loaded from the memory submodule.
EWA 4NEB 812 6130-02a
Startup, Loading and Operating States
7-3