ABB AC 800M

Tabl e 11. Extended status of S200 IO modules
Bit Value Text Indication Alarm/Event Severity Description
0 0x00000001 Minor
Re
vision
Mismatch
Warning Alarm Low Set when there is
any mismatch
between the minor
revision in the hwd
file and device.
7 0x00000080 No
Con
nection
Enabled
Warning Alarm Low Set when no IO
modules are
connected for S200
adapter
CI873 Module Redundancy Section 2 Functional Description
42 9ARD000014-600 A
CI873 Module Redundancy
In CI873 module redundancy functionality, there is primary and backup CI873
modules available in the network. When the Configuration is downloaded from
Control Builder, the primary and backup CI873 modules are configured with
primary and backup IP address respectively. Both primary and backup modules
receive the configuration data, and store them in their internal structures. During a
failure of primary CI873 module, the back up CI873 module takes over and all
connections are synchronized with the back up CI873 module. This leads to
continuous I/O communication with minimal downtime.
The module redundancy also works with the slave devices, irrespective if the slave
supports redundant connection from the master. This is because at any time there
shall only be single connection from the primary CI873 to the slave.
Hot Swap
This section describes the hot swap functionality for CI873, DeviceNet devices,
EtherNet/IP devices, and LD 800DN linking devices.