Operational Differences Vs. Genius Bus Controller - Emerson PACSystems RX3i User Manual

User manual
GFK-2892G
Refer to the Genius I/O System and Communications User's Manual, GEK-90486-1 for
information on how much I/O, and which type of I/O, need to be allocated to Genius devices.
PME (v8.0 or later) considers both system limits and I/O allocation.
1.10 Operational Differences vs. Genius Bus
Controller
Persons migrating from a Genius environment where the Genius Bus Controller performs
functions like those of the GCG001 will want to be aware of the following differences:
2. COMMREQ data blocks are different, mainly due to added PROFINET Device
3. Pulse Test and Assign Monitor COMMREQs do not support Genius bus address of
4. COMMREQ commands: GCG001 does not support all datagrams. See section 6.3.2
5. GCG001 supports hot-standby, duplex, and dual-bus redundancy modes
6. GCG001 can be assigned to bus addresses 30 and 31 only.
7. GCG001 does not support GENI, GENA, or PCIM.
8. Prior to V1.1.1, fault contact operation has changed. Whenever there is a fault on a
9. Genius faults routed through a GCG001 appear as PROFINET faults to the CPU. The
10. Circuit Fault Behavior:
1
For Dual Bus Redundancy, GCG001 firmware version 2.2.0 or later is required; for all other redundancy modes, version 1.1.0 (minimum)
is required.
Introduction
1. COMMREQ function block SYSID and Task parameters change. SYSID is now the
rack & slot of the PNC connected to the GCG001. Task is now 132.
Number and expansion of memory address fields from one word to two words. See
COMMREQ summary in Section 0.
255 to send messages to all blocks.
for a corresponding list of supported COMMREQs.
bus requires additional application code.
single channel of a Genius block, all fault contacts associated with that Genius block
will become active. All faults on that device must be cleared before any of the fault
contacts will de-energize. Beginning with V1.1.1, when there is a fault on a single
channel, none of the fault contacts will become active.
same fault routed through a Genius Bus Controller will present a different error
code.
• Prior to GCG firmware release V1.1.1, when a Genius block encounters a circuit
fault on one or more points or channels, the GCG001 causes all the input
references associated with that block to either hold last state or go to default
values until such time as the fault is cleared. See the Alarms discussion in
section 4.1.4 for a work-around to this behavior.
• Beginning with V1.1.1, when a Genius block encounters a circuit fault on one
or more points or channels, the GCG will cause only the faulted input references
Chapter 1
Sep 2019
1 . Dual-
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