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8.3.4
RS/RT Area
CPU 948 Programming Guide
C79000-G8576-C848-04
The RS and RT areas contain information for the system programmer and
system internal data.
The RS area is an area that is 256 words long in the internal system
RAM of the CPU. RS occupies addresses E F000H to E F0FFH.
Caution
You should only write to system data words RS 60 to RS 63:
All other system data should only be read:
Writing to the system data area can affect the functional capability
of your programmable controller and connected programmers:
serious disturbances can occur which may put both people and
machines in danger.
The RT area is an area that is 256 words long in the internal system
RAM of the CPU. RT occupies addresses E F200H to E F2FFH.
You can use the whole RT area (RT 0 to RT 255) for your own
purposes if
1. you do not use standard FBs
and
2. you do not use PG functions via SINEC H1 and the parallel S5 bus.
Only an overall reset can clear the RS/RT areas.
RS/RT Area
8 - 15
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