Internet PLC Forum

HI
Thanks for your advise.
The reason I need to convert a Hex number to Dec number is that
I need to send a telephone number (dec) to a modem to send SMS message( of course I ve to convert the dec number to string), the input device ( touch screen) responsible for capturing the user input feeds the T100MD888 with hex number and stored in DM[1] and DM[2]. I therefore need to extract the numbers from DM[1] and DM[2], convert them to dec numbers and later to strings and join them together.
I hope this explains my problem better.
Thanks

Thank you very much.
You have cleared my doubts.
Thanks

I just bought a hakko V6 touch screen and I want to connect it to my T100MD888 via rs485 port. How do I initialize the communication? do I have to write a PLC program to receive and send data to the touch screen?

Hi
thanks for your reply.
I use the print #1 PLC command to send the data in the DM back to the host computer at every scan time ( PLC scan time ) and at the same time, I use the hostlink command to control the output port eg:
"send Ctrl_e, wait for reply and send WO0055*"
sometimes I miss the input data partially or completely and sometimes I got no control of the PLC output and sometimes the system hangs. best of all , I got the input data and control the output successfully.
The result seems to be intermittent and not smooth. Should I slow down the PLC sending frequency? how much?
Any example I can refer to?

Thank you for your help
cheers!!

HI
Is it possible to use the hostlink command to control the T100MD 888 outputs directly?
ie:
     will WO0055* turn on the output device connected to the output of the T100MD 888 directly?
Thanks

Hi
I fully understand the limitations of the mechanical relays, however, I have no choice because the entire hardware system is given to me and the management decided to change software rather then hardware.
I hope you understand my problem and help me if you could.
Thanks

Hi
I sincerely thank you for your advise, I think I can find the way out.
Thanks