hello,
we bought a niigata hmc with fanuc 6m controller, we changed the old mits plc with an allenbradley plc and the machine works fine except sometimes the wrong tool comes to the spindle during tool change and we get a scare, we are running on single block now to avoid a crash .
Is this something wrong with the ladder logic which i doubt as this problem occurs only sometimes, should we look into the program syntax esp program nos/ block nos in the 6m,we are normally used to running the 0m series.
any suggestions
thanks again
rags