Adding A Second Linking Device To Form A Redundant Set Of Linking Devices - ABB Ability 800xA Series User Manual

2 Hardware Installation

2.8 Adding a Second Linking Device to Form a Redundant Set of Linking Devices

8. Connect the Ethernet cable and the redundancy link wiring.
Make sure that the redundancy link wiring is connected before plugging in the power
terminal block.
If the replaced Linking Device is powered while the redundancy link is missing, it will
behave like an independent, non-redundant primary device. If in this case the Linking
Device has a valid (possibly unknown) configuration, it might use H1 node addresses
that are already in use on the H1 links. This will disturb or interrupt communication
and application processing on the H1 links.
9. Plug in the power terminal block. The boot process and the download of the
configuration information take about 1 minute. For indication of proper operation as
a secondary device, refer to
2.8 Adding a Second Linking Device to Form a
Redundant Set of Linking Devices
For adding a second Linking Device to an already commissioned Linking Device that is
operating in the role "Primary, no backup", the following steps are required:
The firmware versions of the primary and secondary LD 810HSE Ex must be identical.
1. Set the IP configuration (IP address and subnet mask) of the second Linking Device
in a way that it is in the same IP subnet as the primary device. See
Configuration on page
2. Connect the H1 links to the terminal blocks of the H1 interfaces. Make sure to connect
each H1 link to the same channel (FF 1 ... FF 4) on both Linking Devices.
Make sure not to permute the H1 terminal blocks! An accidental permutation of the
H1 link connections at the secondary Linking Device will not be detected right away.
On application level detection will not be possible before a redundancy switch-over
takes place or the live lists of primary and secondary Linking Device are being
compared manually.
3. Connect the second Linking Device to the Ethernet switch or hub.
4. Connect both serial ports (pins 4, 5, 6, refer to
page
5. Connect the second Linking Device to a 24 V DC power supply. Use different or
redundant power supplies for redundant Linking Devices.
6. After turning on the power supply, the boot process takes approx. 50 seconds.
2PAA114135-610
62.
34) by means of a redundancy link interface cable.
Status Indicators - LEDs on page
Redundancy Link Interface on
37.
Network
47