Siemens SIMATIC S5 Manual page 79

IP 265
7.2.2 Loading the IP 265 from the Memory Submodule
Loading from memory submodule is possible without COM 265.
For the loading procedure, the following prerequisite must be fulfilled:
• A memory submodule containing the IP 265 user program must be plugged into the IP 265.
You can use either
- an EPROM or EEPROM submodule programmed using COM 265
or
- an EPROM submodule with standard program
User handling
POWER ON
Irrespective of whether a valid freely programmable memory submodule or a standard sub-
module is plugged into the module, the user program is automatically loaded into the IP 265
after POWER ON.
Note
After transfer of the program data to the IP 265, the IP 265 evaluates the memory
submodule. If an illegal EPROM, an empty EPROM or a memory submodule with invalid
program data is plugged into the module, the IP 265 enters the STOP state or hard
STOP. The IP 265 indicates these errors in the following ways:
• Error message in the status word ( Section 4.3.2; Table 4-3)
• Flashing of the STOP LED ( Appendix A.1)
Status information
Automatic loading of the IP 265 from the memory submodule is displayed by the control bit in the
status word. If the loading procedure has been successful, the status bit "IP 265 loaded" is set.
Transfer errors during loading, however, set the error flags "group error" and "loading error" in the
status word.
Note
After a successful loading procedure, the IP 265 enters the STOP state. It must be
explicitly switched to RUN to start program execution. In the control word of the IP 265,
the relevant bit ("RUN bit") must be set by the CPU user program for this purpose
( Section 4.3.1).
Duration of the loading procedure
The loading procedure takes approx. 1 s.
EWA 4NEB 812 6130-02a
Startup, Loading and Operating States
7-7