ABB CI626V1｜ Communication Interface｜

CI626V1

1. Compatibility bridging between old and new systems
As a bridge between the new AC800M controller and the old Advant S800/S600 IO station, it reads the old on-site IO signals and issues control commands through the AF100 coaxial bus, without the need to replace the entire set of on-site IOs, greatly reducing the cost of unit renovation.

2. AF100 coaxial bus master station management
The bus topology supports bus type and tree type, and a single card can mount all AF100 nodes of the entire bus;
Transmit analog, switch, SOE event timing messages to meet the requirements of power plant fault timing traceability;
Support global time synchronization and issue unified time stamps to downstream IO stations.

3. Dual bus media redundancy
Two BNC coaxial channels serve as hot standby for each other, with millisecond level switching in case of single cable breakage or short circuit, without interrupting the unit control logic, suitable for high safety redundancy working conditions in thermal power and chemical industries.

4. Full link fault self diagnosis
Real time monitoring of coaxial cable breakage, impedance mismatch, offline bus nodes, and short circuits; Upload the fault code to the controller, and the upper computer will pop up an alarm, making it easy for operation and maintenance to troubleshoot long-distance factory bus faults.

5. Hot swappable maintenance
Support online live replacement of modules without the need for shutdown or power outage, without affecting the operation of other control circuits.