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CPU416-3 communication error

4/4/2009 7:31 AM	Rate (0)
VictorWang Posts: 20 Rating: (1)	Hi, i have 4 set of416-3 is in service now, recently, a communication error always happed, one CPU cannot sent/receive data from another one. just need download DB for send/recieve block then all is recovery. but I don't know why do it happened? who will share your experience with me? many thx! BR Victor
VictorWang Posts: 20 Rating: (1)
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4/4/2009 8:40 AM	Rate (0)
CBo Gold Member Joined: 4/5/2006 Last visit: 10/3/2025 Posts: 917 Rating: (63)	Hi Victor, a lil hard to help you with so few information. can you post what type of comunication, CP diagnostic bauffer maybe and so on.. There is Comunication/Network Conference also...maybe they can help you more efficently Regards

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4/4/2009 9:48 AM	Rate (0)
VictorWang Posts: 20 Rating: (1)	communication is over ethernet base upon cp443-1 among 4 CPUs, and hardwareand connection areOK after checked. error output is true on the send/received block within CFC, data cannot be send to others due to this error. if only downloaded and overwritecommunication DB related with send/receive block, this error output will go off. so i think CFC cannotfind this DB correctly in PLC. BR Victor
VictorWang Posts: 20 Rating: (1)
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4/4/2009 2:33 PM	Rate (0)
CBo Gold Member Joined: 4/5/2006 Last visit: 10/3/2025 Posts: 917 Rating: (63)	Hi Victor, sorry to ask you one more...can you post CP buffer diagnostic?..please... VictorWang ... so i think CFC cannotfind this DB correctly in PLC. ... seems you already understand what have to look for, but.. can you help us to understand a lil better...maybe posting image about your CFC or something else to understand more about your configuration and porgramming What type of comunication are you using? GET/PUT or AG_SEND/AG_RECIVE and so on... need more information about your programming to be able to help you... Regards

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4/5/2009 2:27 PM	Rate (0)
VictorWang Posts: 20 Rating: (1)	sorry for any inconvenience, CP buffer diagnostic message and CFC imageas attachment for your reference. and communication block is programed by our company. BR Victor Attachment Diagnose.zip (210 Downloads)
VictorWang Posts: 20 Rating: (1)
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