08-20-2012 09:51 AM
Hello,
Lookout 6.6
How do you set a modbus member, i.e. a coil (point 1 for example) as write only?
Thanks in advance.
Bruce
Here's a bit more detail. Our RTUs communicate via radio so latency is a factor. Lookout always is trying to read from these write only coils and this causes additional delays. If we could eliminate all the unnecessary radio traffic that Lookout creates reading coils that are write only, it would be very helpful.
08-21-2012 03:31 PM
Try using two Modbus objects. One polling for reads, the other with no polling (immediately write outputs) for writes.
08-21-2012 03:51 PM - edited 08-21-2012 03:53 PM
Thank you, a great suggestion (having two objects)
I will do some experiments...
From what I've seen from the trace, Lookout immediately reads the coil after the write, i.e. not as part of the poll, inorder to sync with the hardware. I wish I could turn this off.
Thanks again.