trend problem mp277

seee · Jan 5, 2015

hello.
we have a machine with mp277 panel installed on it.
this panel was showing trends of different parts
and worked fine but two days ago a message
appeared like attachment and only one trend isn't shown.
for your information other trends is shown fine without any problem)
please help me.
best regards.

gclshortt · Jan 5, 2015

Can you give a little better description of the equipment that you are using?
Is the PLC in alarm?
Is a USB data stick being used? (This might be faulty)

Regards,
Garry
http://www.accautomation.ca

seee · Jan 5, 2015

hi.
thanks for your reply.
In this machine several pt100 sensors are used to measure temperatures.
Each temperature is displayed on seperate trend and also is logged
on a MMC card not usb stick.
there isn't any alarm on the plc and it works fine without any problem.
only one trends has problem with the fault already attached.
this machine work 6 month without problem and 2 days ago this problem
occure.
please help me.
thanks.

JesperMP · Jan 6, 2015

Try to replace the MMC card.

gclshortt · Jan 6, 2015

OK
I would try first a new PT100 sensor or wire in one to the input that you know works to see if logging will return.
If it does not return, then replace the MMC card as JesperMP suggests.
Regards,
Garry
http://www.accautomation.ca

JesperMP · Jan 6, 2015

It says "error in case of read access to log file ..".
The problem has to do with the flash card.

seee · Jan 6, 2015

Thanks a lot for your replies.
I replace the memory card and the problem solved.

trend problem mp277

seee

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