Internet PLC Forum

General => Technical support => Topic started by: TWilce on July 24, 2012, 04:04:33 PM

Title: Pause and run error lts on
Post by: TWilce on July 24, 2012, 04:04:33 PM

Pause and run error lts on and i can not communicate with the rs232 port. I have tried dip switch 4 still no luck. Any thing else i can try. I am using a FMD88-10 PLC in this case.

PS Also has no lcd screen display
Troy

Title: Re:Pause and run error lts on
Post by: support on July 25, 2012, 09:28:32 AM

It appears that the CPU is not running.

Please check the power supply to the ICs such as 74HCT14, 74HCT245 to see if there is 5V there between the upper left and lower right corner pins (i.e. pin 7 and pin 14 for 74HCT14). If the voltage is less than 5V that means there are components damage which drag the power to below CPU operating voltage. You can call the tech support hotline at 1-877-874-7527 to discuss your issue or email to support@tri-plc.com to request for an RMA.