smsebnaa Member OP S Join Date Nov 2014 Location tehran Posts 32 Dec 17, 2014 #16 JOLTRON said: Was this link supposed to be to a manual? for me it just shows a list of support pages with nothing in the search fields. Click to expand... check this link: https://support.automation.siemens.com/WW/llisapi.dll?func=cslib.csinfo&lang=en&objid=36932465&caller=view
JOLTRON said: Was this link supposed to be to a manual? for me it just shows a list of support pages with nothing in the search fields. Click to expand... check this link: https://support.automation.siemens.com/WW/llisapi.dll?func=cslib.csinfo&lang=en&objid=36932465&caller=view
smsebnaa Member OP S Join Date Nov 2014 Location tehran Posts 32 Jan 19, 2016 #17 I have another question; s7-1200 program works well, but there is a problem after 40 days! modbus(rtu) communication is freezed and there are not any respond from slaves(arduino). what is the problem?
I have another question; s7-1200 program works well, but there is a problem after 40 days! modbus(rtu) communication is freezed and there are not any respond from slaves(arduino). what is the problem?
KalleOlsen Member K Join Date Oct 2008 Location Norway (moustache area) Posts 1,782 Jan 19, 2016 #18 smsebnaa said: ... what is the problem? Click to expand... That's a good question. First you must find out if the PLC or the Arduino has frozen. Kalle
smsebnaa said: ... what is the problem? Click to expand... That's a good question. First you must find out if the PLC or the Arduino has frozen. Kalle
smsebnaa Member OP S Join Date Nov 2014 Location tehran Posts 32 Jan 19, 2016 #19 KalleOlsen said: That's a good question. First you must find out if the PLC or the Arduino has frozen. Kalle Click to expand... you should be patient until 40 days later! maybe the solution resistors at end of bus?
KalleOlsen said: That's a good question. First you must find out if the PLC or the Arduino has frozen. Kalle Click to expand... you should be patient until 40 days later! maybe the solution resistors at end of bus?