ABB LD 800HSE, Руководство пользователя

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Redundancy Behavior Appendix C Technical Reference
118 3BDD011677-600 A
4 Secondary Device fails
due to
• permanent
hardware fault
• transient
hardware fault
• software fault
Device fails completely or
software watchdog expires or
hardware watchdog expires or
exception occurs or
failure in H1 interface
detected.
Secondary
Device assumes
and indicates
non-operational
state. System
degrades to
non-redundant
system. Transient fault:
Automatic reboot
Permanent fault:
Replace device
Secondary Device will
reboot and receive
configuration data from
Primary Device.
5 Ethernet cable broken
between Secondary
Device and Ethernet
hub/switch. Bad link status of Ethernet
port detected.
Detection time less than 500
ms.
Secondary
Device assumes
and indicates
non-operational
state. System
degrades to
non-redundant
system. Repair or reconnect
Ethernet cable.
Secondary Device will
reboot and receive
configuration data from
Primary Device.
6 H1 cable broken
between Secondary
Device and H1
network.
(1)
No fault detection in
Secondary Device.
Empty live list has to be
detected by any HSE client (e.
g. asset monitor).
None. No redundancy
concerning the
affected H1
link. Repair or reconnect H1
cable.
7 TCP connection lost
between Primary
Device and Secondary
Device. Time-out on TCP connection.
Detection time less than 2 sec
during activity and less than 7
sec during idle times.
Secondary
Device assumes
and indicates
non-operational
state
(2)
System
degrades to
non-redundant
system.
Secondary
Device clears
configuration. Repair Ethernet
connection.
Secondary Device may
reboot in some cases
depending on prior state
and will receive
configuration data from
Primary Device.
8 Redundancy link
broken or removed
between Primary
Device and Secondary
Device for more than
11 sec. Loss of serial communication.
Detection time less than 800
ms.
Secondary
Device assumes
and indicates
non-operational
state after 11 sec. System
degrades to
non-redundant
system after 11
sec. Repair or reconnect
redundancy link.
Secondary Device will
reboot and receive
configuration data from
Primary Device.
Table 18. Redundancy Behavior
Fault Condition Fault Detection Fault Treatment Effect Repair Measures