Modbus TCP datapoints limitation

[Ceros2112]

Hello,

what are the limits of Modbus TCP in lm5lp2?

For example, I have one building with at least 1000 modbus tcp coils, is one lm5 capable of handle that?

Thank you for your help, I'm sorry but I can't find any answer 

[admin]

Depends on how often you want to read this data. If coils are in a continuous range it is possible to read all at once instead of one by one.

[Ceros2112]

They're pretty much 90% lights (there is a working PLC installed that actuate the lights) controlled with presence/light detectors, basically lm5 will be used as a SCADA (supervision, schedulers, ecc...) and as a gateway from KNX to the PLC.

I think we don't need extreme speed in reading, but we do certainly need speed when we write data to the PLC, can it be a problem?

[admin]

If PLC can handle multiple connections then it should be fine.

[Ceros2112]

2 at best, I suppose that you're suggesting to handle reading and writing as two separate modbus requests, right?