Quick question; how do you access a bit address from within a byte in the Unit Mapping dialog when setting up signals?
It’s set to 64 bytes in/64 bytes out, but need to access bits (partially for DI/DO, but also for GI/GO).
Cheers.
Don’t understand the question..
What is it that you want to do? Do you mean ‘reading’ e.g. bit 100’s value or what?
If there are 64 bytes, then i need to access bits of those bytes (i.e. would bit 3 of the first byte be 0.3?)
If one byte is used for each signal irrespective of its size (i.e. a boolean DI, or a numeric GI), then i have a major problem as the application requires about 200 signals to and from our PLC.
if it was a normal PLC, then the bits would be:
0.0
0.1
0.2
…
0.7
1.0
1.1
for bit addressing, then bytes are the “whole” numbers
2
3
4
…etc
Does that help? I can’t see anything in the manual for the Fieldbus Adaptor that suggests how you can do this (if you can).