Meaning of the code 71H:
The code 71H means that the page does not exist. If this error occurs,
the PG functions cannot be used via the S5 bus. In this case, check the
interface assignment of the CP 143. Interface numbers 232ff or 236ff
must be set (jumpers and SYSID!).
RT area
If the pages for PG functions exist and the connection to the CP 143 is
established, an information field consisting of 16 words is set up in the
RT area of the CPU 948 with the structure shown below.
Note
As long as there is no connection to the CP 143 (PAFE = 71), e.g.
because there is no page with SSNR 232ff or 236ff, no additional
information is stored in the RT area.
Address
E F2E8H Data sent from CPU to PG for
interface 234 or 238
RT 232
E F2E9H Data sent from CPU to PG for
interface 235 or 239
RT 233
E F2EAH reserved RT 234
E F2EBH reserved RT 235
E F2ECH Data sent from PG to CPU for
interface 234 or 238
RT 236
E F2EDH Data sent from PG to CPU for
interface 235 or 239
RT 237
E F2EEH reserved RT 238
E F2EFH reserved RT 239
E F2F0H reserved PAFE 234 RT 240
E F2F1H reserved reserved RT 241
E F2F2H reserved PAFE 235 RT 242
E F2F3H reserved reserved RT 243
E F2F4H reserved PAFE 238 RT 244
E F2F5H reserved reserved RT 245
E F2F6H reserved PAFE 239 RT 246
E F2F7H reserved reserved RT 247
PG Functions via the S5 Bus
CPU 948 Programming Guide
11 - 36 C79000-G8576-C848-04
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