Identical Hardware and Software
In previous sections, we stated the requirement for identical controllers and 140 CRP ••• 00 head modules. In fact, the requirement for identical configurations extends to all equipment on both the primary and standby racks, and even to the application programs. To create a working Hot Standby system, refer to the following hardware/firmware requirements or your system cannot come online.
There must be identical hardware in both controllers:
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Identical Quantum Hot Standby controllers with identical CPU and copro firmware, identical memory cards and accessories, occupying the same rack positions. You can permit differing firmware versions on a temporary basis so that operational
firmware upgrades are possible.
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Identical in-rack I/O. Any in-rack I/O is identical, including having identical firmware versions and hardware revisions (if applicable), and occupy the same rack positions.
NOTE: Since the applications are identical in both controllers, the in-rack I/O is identical in both PLCs so that the standby application can handle this I/O if it becomes the primary controller.
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Identical module cartridges and accessories. For in-rack communication and I/O modules that accept such accessories, any cartridges used are identical, and identically positioned and configured.
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Identical extended Quantum racks (140 XBP 004 00 through 140 XBP 016 00 backplanes). Each PLC contains the same number of racks. The rack IDs used are the same on each PLC.
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Identical Quantum 140 CPS ••• •• power supplies, occupying the same rack positions, and, ideally, supplied by different circuits.
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Identical cabling and cabling systems, fully shielded, and compliant with the length requirements for the type of fieldbus you employ.
Identical application programs and configurations must be loaded on both Quantum Hot Standby controllers in both primary and secondary controllers.
NOTE: You can temporarily permit different software on the 2 controllers so that operational software modification can be made while running. For more information, refer to the CCOTF User Manual.
Software and Firmware Requirements
For a Ouantum Hot Standby system the following minimum software and firmware is required:
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140 CRP 93• 00 firmware: 2.0
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S908 140 CRA 93• 00 firmware: 2.0
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Unity Pro 7.0 XL and XLS
NOTE: Unity Pro is the former name of Control Expert for version 13.1 or earlier.
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140CRP31200 firmware: 1.0
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140CRA31200 firmware: 1.0
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140NOC78000 firmware: 2.0
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140NOC78100 firmware: 2.0
The 140NOC78•00 modules require CPUs with firmware 3.1.
