Regarding the message clear
i am using abb pm573 plc, the network configuration is modbus tcp/ip.and i am using renu make hmi..
i am transfering some custome message from plc to hmi, i configured tag as a string in the plc, when i enter the message in that tag same message is displaying in the hmi, i written a logic to clear that message ofter certin time by using move instruction, after clearing the message, i enter the message (the charactor length is less than the first message), the message displaying in the him with latest meassage and previous message, when i check the logic same message is displaying at the output tag, how to clear the complete messgae,.... is there any instruction to clear the complete message....
first message: machine is running
second message: stop
after entering the second message the message displaying in the logic is
"stopine is running".
plese give me solution....
Maybe you can write a second message having the same length with the first one by filling with spaces.
For example as you say:
1st message: "Machine is running"
(put spaces in the 2nd message so the length is the same with the 1st message)
Hope this helps.