In an M580 ERIO architecture, let’s consider 3 different use cases for Hot Standby hot swap:
1 - Send swap command via DDT control bit -> swap is OK, inputs are properly managed by default / by design
2 - Power off primary rack -> swap is OK, inputs are properly managed by default / by design
3 - Disconnect/remove both ERIO cables on the Primary CPU
Standby will take over, but Inputs bump to 0 could be visible depending on task duration.
If you are concerned by the 3rd use case, to work around this behavior you need to consider the drop health bit: e.g. RACK1_MOD_COM.DROP_COM_HEALTH
1 - Send swap command via DDT control bit -> swap is OK, inputs are properly managed by default / by design
2 - Power off primary rack -> swap is OK, inputs are properly managed by default / by design
3 - Disconnect/remove both ERIO cables on the Primary CPU
Standby will take over, but Inputs bump to 0 could be visible depending on task duration.
If you are concerned by the 3rd use case, to work around this behavior you need to consider the drop health bit: e.g. RACK1_MOD_COM.DROP_COM_HEALTH
Released for: Schneider Electric New Zealand
Need help?
Product Selector
Quickly and easily find the right products and accessories for your applications.
Get a Quote
Start your sales inquiry online and an expert will connect with you.
Where to buy?
Easily find the nearest Schneider Electric distributor in your location.
Help Centre
Find support resources for all your needs, in one place.
