Communications Coprocessor Module (Cmm); Programmable Coprocessor Module (Pcm) - Emerson PACSystems RX3i User Manual

PACSystems™ RX3i and RSTi-EP CPU Reference Manual
GFK-2222AK
5.2.7

Communications Coprocessor Module (CMM)

PACSystems does not support the following with an IC697CMM711:
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The following restrictions apply when using the IC697CMM711 with PACSystems:
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Note: For details on operation of the IC697CMM711, refer to the Series 90 PLC Serial
Communications User's Manual, GFK-0582.
5.2.8

Programmable Coprocessor Module (PCM)

PACSystems does not support the following with an IC697PCM711:
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Access to Symbolibc variables.
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Communications
Access to Symbolic variables
WAIT mode COMMREQs.
Connecting the programming software to the CPU through the CMM's serial ports.
Permanent datagrams.
Access to %W references is partially supported. Only offsets 0—65535 of %W can be
accessed via the CMM.
The Program Name is currently always LDPROG1 for PACSystems.
Reads and writes beyond currently configured reference table limits will report a
minor code error of 90 (REF_OUT_OF_RANGE) instead of F4 (INVALID_PARAMETER)
as reported on the Series 90-70.
In case of ERROR NACK, the Control Program number, privilege level and other
piggyback status data will be set to 0.
PACSystems CPUs return the major/minor type of the 90-70 CPX935 (major type 12,
minor type 35) to the CMM scratch pad memory when communicating with a CMM.
Control Program Number will be returned as 01 in PACSystems instead of FF as
reported on the Series 90-70.
Connecting the programming software to the CPU through the serial ports on the
PCM711.
WAIT mode COMMREQs.
The following C functions are not supported:
chk_genius_bus
chk_genius_device
get_cpu_type_rev
get_memtype_sizes
Section 5
October 2019
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