Technical data

Appendix 3: STEP 5 Operations not Contained in the CPU 928B
Please note that the following STEP 5 operations belonging to the
CPU 946/947 and CPU 948
cannot be processed in the CPU 928B.
Operation Function
BAS
BAF
TB
I, Q, F, C, T, D, RI, RJ,
RS, RT
TBN I, Q, F, C, T, D, RI, RJ,
RS, RT
SU I, Q, F, C, T, D, RI, RJ,
RS, RT
RU I, Q, F, C, T, D, RI, RJ,
RS, RT
LIM
SIM
UBE
STW
IAE
RAE
RAI
IAI
Block command output
Release command output
Test bit for signal status ’1’
Test bit for signal stauts ’0’
Set bit unconditionally
Reset bit unconditionally
Load interrupt mask
Set interrupt mask
Interrupt block end
Stop operation in time-driven
interrupt processing
Disable addressing errpr
interrupt
Enable addressing error
interrupt
enable requested interrupt
processing
Disable requested interrupt
processing
Appendix 3: STEP 5 Operations not Contained in the CPU 928B
CPU 928B Programming Guide
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