text: <s>[INST] PF700S using 20-COMM-D interface Peer-to-Peer I have a pair of PF700S drives using a synclink configured as a master-slave electronic line shaft setup where there is a 20-COMM-D card on each drive for communication with the main controlller. We setup a peer-to-peer link using the 20-COMM-D card between the drives. We are sending (P158)Drive Logic Rslt of master through (P660) Datalink A to cmd/ref of slave for start/stop operation and switching the Cmd/Ref. Presently the Master (P42)Peer out time is 0.01 seconds and (P43) Peer out skip is 1. The Slave (P36) Peer Inp Timeout is 0.50 seconds. If I make the master (P42)Peer out time is 1 second and the Slave (P36) Peer Inp Timeout is 1 second. I fault the slave drive mostly right away but using shortly after starting them. The devicenet is running at 125Kb and there are only 3 devices as outlined above on the network. Have anyone used Peer-to-Peer in a 20-COMM-D card?Anything to watch out for? [/INST] djr, any informations about the fault you get on the slave and the led status for both Master and Slave drives (before and after the fault...) ? :smileywink: Also, did you try to leave only the two drives on the network ? Please, if you want, try the demo example in the following technote: Aid 24563 Check also this technote, if your drive are not new...was a problem in past firmware... Aid 23957 Hope this helps... - fuzzy logic \\n </s>