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Friday, March 25, 2011

Monday, March 21, 2011

PLC S7-400

As-i slave

This's one is As-i slave in MSB, they used As-i bus for communication between As-i Master and As-i slave. The most problem come from the connection of yellow As-i and black As-i.

ASi-Master


AS-i Master 4 node (1A 1B 2A 2B , 31 addresses / node), That's one used for connecting between Profi-bus and Asi- bus, Between As-i Master and others As-i Master used Profi-bus for communication.
Power Box internal wiring, many many problem inside, i have to solve everyday.

Power Panel --> Power Box --> MSB --> Motor

Profi Bus --> As-i Bus --> Hard wire
A Motor got over current cause The Motor Break isn't open.