vaggelis

i am working on ships and we have nitrogen generator with mitsubishi HMI and PLC. With hot ambient temperature this system cannot communicate(hmi with plc) and we alrady had claim about this. I wont to take out the hmi and with my program control the plc. i don't know if i will do it but i will give a try. i don't wont to buy the control because it's expensive and i am not working with mitsubishi plc's and HMI's.

Thanks a lot very good notes for me

thanks sparky, It's very usefull the protocol frames do you have an example for data address how to convert it?

hi, I am working now with one plc FX3U cpu. I want to build a program with vb.net to read plc data. I found on net the mx component but i don't want right now to use it.I Also found the protocol but i have a question on this.How calculate the address. For example the D123 i found Algorithm Address=address*2 +1000h. i need some example here because the result is 31h,30h,46h,36h but i can't found how calculated. i try to calculate D123*2 decimal values + 1000h to decimal and all to hex but with no result. Thanks