bluffit
Member
We're in the process of rolling out a wireless sensor network solution for the ag sector.
(see http://southweb.co.nz/telemetrylayer)
Our solution will map raw I/O to MQTT topics and Modbus registers.
What we haven't got is the ability to define and run control loops - and we don't want to reinvent the wheel or roll our own!
So in an ideal world, we need a simple low cost PLC that:
- has a control loop
- is a Modbus (ideally TCP) slave
- comes with a ladder editor (or supports 3rd party editors)
- has remote support for programming/monitoring (i.e. can update Ladders vs TCP/IP)
I thought this would be a simple request, but am yet to find a suitable device so am throwing it open to the forum.
thx.
(see http://southweb.co.nz/telemetrylayer)
Our solution will map raw I/O to MQTT topics and Modbus registers.
What we haven't got is the ability to define and run control loops - and we don't want to reinvent the wheel or roll our own!
So in an ideal world, we need a simple low cost PLC that:
- has a control loop
- is a Modbus (ideally TCP) slave
- comes with a ladder editor (or supports 3rd party editors)
- has remote support for programming/monitoring (i.e. can update Ladders vs TCP/IP)
I thought this would be a simple request, but am yet to find a suitable device so am throwing it open to the forum.
thx.