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Service and Maintenance
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7-25
Engineered to Endure
When enabled, warm standby mode uses the A: side unit as the primary unit and the B:
side unit as the standby unit. In a protected system, redundancy control is shared. The
interface module that links the two units has no microprocessor of its own and acts
only as a conduit to split signals, transfer communications channels, and to produce a
summary alarm. The system must be in a known starting state in order to operate
properly.
Warm standby mode operates only in non-reverting mode. This mode was chosen to
avoid repeated switching between the A: side unit and the B: side unit in a scenario
where both units fail.
Note:
If warm standby mode is later disabled, the redundancy mode remains non-reverting
until you manually change it.
The transmitter enable state is not user-configurable. Due to the nature of warm
standby mode, both transmitters can never be On at the same time. If you have a
stringent power budget that cannot support both units being On at the same time and
you inadvertently enable both transmitters, the system will not operate properly.
If your power budget will allow both the A: side unit and the B: side unit to be
powered On at the same time, do so. If your power budget does not allow this, follow
these steps,
1. Power On the B: side unit.
2. Disable the transmitter.
3. Enable warm standby mode by using any of the interfaces (hand-held terminal,
RS232, RS485, telnet, or the Web interface).
4. Power Off the B: side unit.
5. Power On the A: side unit.
6. Enable the transmitter.
7. Enable warm standby mode by using any of the interfaces.
8. Power On the B: side unit.
Содержание IBUC 3
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Страница 13: ...ix REVISION HISTORY Engineered to Endure Revision Date Description A 1 26 2021 Initial Public Release ...
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Страница 33: ...System Components 2 11 Engineered to Endure Figure 2 3 DC powered IBUC3 Block Diagram ...
Страница 37: ...System Components 2 15 Engineered to Endure Figure 2 4 DC Low Power IBUC System Configuration ...
Страница 40: ...2 18 IBUC 3 IBUC 3G Operations Manual Functional Description Engineered to Endure ...
Страница 60: ...3 20 IBUC 3 IBUC 3G Operations Manual Installation Engineered to Endure ...
Страница 90: ...6 8 IBUC 3 IBUC 3G Operations Manual Troubleshooting Engineered to Endure ...
Страница 132: ...B 8 IBUC 3 IBUC 3G Operations Manual Using HyperTerminal Engineered to Endure ...
Страница 157: ...Menu Options D 3 Engineered to Endure Figure D 3 Hand held Terminal Menu Tree ...
Страница 162: ...D 8 IBUC 3 IBUC 3G Operations Manual Hand Held Terminal Menu Tree Engineered to Endure ...
Страница 168: ...E 6 IBUC 3 IBUC 3G Operations Manual Legacy Binary Command Message Structure Engineered to Endure ...
Страница 223: ...Reference Drawings G 3 Engineered to Endure Figure G 2 Fabrication Drawing FBD 21984 XXXX Rev B page 1 of 2 ...
Страница 225: ...Reference Drawings G 5 Engineered to Endure Figure G 4 Example Installation Drawing IND 10521 0011 Rev A ...
Страница 227: ...Data Sheets G 7 Engineered to Endure ...
Страница 228: ...G 8 IBUC 3 IBUC 3G Operations Manual Component Specifications and Reference Drawings Engineered to Endure ...
Страница 235: ...I n d e x 3 Engineered to Endure ...
Страница 236: ...I n d e x 4 ...