Kebuelefe Sefhako
Member
Having a problem with is processor PLC SLC 500 cat:1747-L541, the fault light is flasing and cannot go online and again the DH+ comm. is flushing what could be the problem here.?
PLC SLC 500 cat:1747-L541
- Thread starter Kebuelefe Sefhako
- Start date
geniusintraining
Lifetime Supporting Member + Moderator
Sounds like you lost the program and faulted? just a guess maybe the battery is bad and you had it off, you can reset the PLC back to factory and that should get your communication back but your program will be gone so hope you have a backup copy
Solid fault is a bad CPU, flashing is a recoverable fault
James Mcquade
Member
I have had a brown out condition followed by a surge which caused the plc to loose its program.
you have to remove the battery and short out the capacitor for a minute to restore to the default condition.
I eventually had to install a line filter which solved the problem.
regards,
james
you have to remove the battery and short out the capacitor for a minute to restore to the default condition.
I eventually had to install a line filter which solved the problem.
regards,
james
Similar Topics
Everyone,
i am in the process of purchasing the Slc 500 version of software to support what we have and i have a question. Several of our...
I used up my last new Allen-Bradley SLC 5/04 controller. Does anyone have info on a good reliable place to get a new one for a decent price, or...
Hi All,
I was working on preparing a quotation for the SCADA upgrade from Citect V 7.1 to Citect 2018. On-site they are currently using SLC 500...
Hey,
I'm used to CompactLogix 5000 controllers and was needing to know the process of forcing on bits and enabling forces on a SLC 500 Allen...
Hello,
Here we have the mentionned PLC which had, in the beginning, a serial line printer connected to one of the serial port of the basic module...