LUIS GUERRERO

We´ve checked the connections between the touch panel and PLC and the cable and connectors are ok. The "comm" light on the PLC is flashing when the machine is turned on (does this tell you something?)   Regarding the message displayed "Connecting to host", perhaps you should know that the battery drained while the machine was off (weekend). According to the manual, it must be replaced within 5 minutes "to protect the contents of the memory". As this didn´t happen, could this be the cause of the message displayed?  

if it refers to the cable (RS-232C) that connects to both! This was verified and common connector pins are OK, ie the cable is good!

thanks for answering! The communication cable already reviewed and appear to be fine! There have been no changes in the configuration of the PLC and the terminal. It is possible that the battery run out there lost NT620C this program that allows you to communicate with the PLC?  

Good morning! sorry for my English! The programmable terminal is on the screen indicating the following '' Connecting to Host '' this is connected with an RS-232C cable to a SYSMAC C200HG CPU43, what are the possible causes of this failure? thanks for your answers and help!