Such a ladder was used in RS instruction, but tests found that program implementation, the testing of serial port can send out data by the PLC, but by serial debugging assistant, when sent to the PLC, but can not receive data. Do not know if you are not faced with this problem, I use Delta plc is the [...]
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AB RSLogix5000 communication problems
May 4th, 2010 by admin
Field use AB RSLogix5000 series PLC with 2 sets of 7ǠS, 2 sets 700 series drives, communications module is COMTROLNET, previously working, now after power-PLC communication is normal, over tens of seconds to minutes cut off communications, PLC power after power to a newsletter, and a few tens of seconds to minutes they cut off communications, non-inverter with only IO Module [...]
Counter instruction
April 19th, 2010 by admin
I use the counter when orders I used the MW10 default value is 0 and then began increasing in value, but I have monitored the changes in the value MW10 Why it did not change Thank guide!