MD-HMI

[leo9]

I have a T100MD 888 and MD-HMI.
My program runs under simulation mode and key inputs and led's outputs works.
However when I down load the program to the plc none of the keys or led?s work on MD-HMI?
 Further if I go to online monitoring and activate the keys it works. Did I miss something?
I have assign inputs 10=key 0 ~19=key 9, 20=key delete, 21= key enter, 22=F1 ~25=F4.
Outputs 10=led 1~ 13=led 4, 14=F1 led~ 17=F4 led.
Kindly advise.

[support]

The position of the HMI keys and LEDs are fixed and you  can't just assign it to any inputs or outputs that you choose. For  your case, the key will correspond to input #17 to #32 and the LED  will correspond to output #17 to #32. If you adhere to its assigned  position you should be able to get it to work.

[leo9]

Thank you I have arrived.
Note your documentation on your equipment is not clear especially to novices

[support]

Do you have a copy of the Installation guide for the HMI? If not you can download a copy from our website. It explains how the HMI keys and LEDs are assigned according to whether the PLC is a MD888+, 1616+, 2424+ and whether an expansion board is used. All these affects the locations of the I/Os on the HMI and that's may be the reason why you feel confused. However, the T100MD+ and expansion board can be combined in many ways and understanding how the I/Os are assigned in each configuration is important in your programming. If in doubt, put the PLC in online monitoring and press the key to see which input lights up and you will then have an idea.