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Why can't I chang the state of CP443-1 via "run/stop" switch?

Created by: hannibar at: 11/14/2006 8:57 AM (4 Replies)

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11/14/2006 8:57 AM	Rate (0)
hannibar Posts: 52 Rating: (8)	Hi,all Hereare an s7-414 and a wincc via TCP/IP,when I press the "run/stop" switch to "stop" position,guess what?nothing,the wincc can also read and write all data of s7-414,why?[:mad:] The "stop" LED is light,but "TXD" and "RXD" are flashing. So I tested a CP343-1,it's same. Regards, Hannibar
hannibar Posts: 52 Rating: (8)
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11/14/2006 10:58 PM	Rate (1)
J_Bell Posts: 5822 Rating: (411)	Hi Hannibar, well I guess you use S7 Communication, don't you? If so the actual communication takes place between the CPU and the remote Device. The CP acts only as a relay and the relay works even if the CPU of the CP is is Stop mode. This is due to the fact that the PG Functions also have to work and they use a closely related way. Best regards J_Bell
J_Bell Posts: 5822 Rating: (411)
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11/15/2006 1:40 AM	Rate (0)
hannibar Posts: 52 Rating: (8)	Hi,J_Bell Thank you very much! Regards, Hannibar
hannibar Posts: 52 Rating: (8)
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8/23/2015 11:19 AM	Rate (0)
sameer@123 Posts: 5 Rating: (0)	Hi,J_Bell I am also facing same issue. i am using cp 443-1 to communicate with my Citect SCADA using PS Direct. during this case there will be no update in the SCADA. how can i solve this. thanks
sameer@123 Posts: 5 Rating: (0)
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8/25/2015 2:09 PM	Rate (0)
Min_Moderator Platinum Member Joined: 9/3/2014 Last visit: 3/13/2019 Posts: 4826 Rating: (123)	New question published by mr.adi is split to a separate thread with the subject Difference between run / stop. Best regards Min_Moderator

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