Parameters for the CP 143
Assigning parameters for the CP 143 is described in the CP 143
manual (Further Reading /6/).
Caution
The interface numbers 232ff and 236ff must not be assigned on
the CP 143 when operating with other SIMATIC CPUs. When
operating the CPU 948 with other CPs, the use of interface
numbers 232 to 247 is restricted.
Multiprocessor mode
The PG functions via the S5 bus can also be used in the
multiprocessor mode with the CPU 948.
With one CP 143, two CPUs (948) can use the online functions in the
S5-155U. The CP 143 can also be used in the expansion unit (EU 185).
In the multiprocessor mode, CPU 1 uses the page with SSNR 234,
and CPU 2 the page with SSNR 235.
If a second CP 143 is inserted and has appropriate parameters
assigned, this is reserved for the online functions via the S5 bus with
CPU 3 and CPU 4 (with SSNR 238 and 239).
PG Functions via the S5 Bus
CPU 948 Programming Guide
11 - 30 C79000-G8576-C848-04