Native Comms for BRX

[RBPLC]

Is there by chance a way to natively communicate with BRX controllers using a standard library in something like C++ or Python over TCP/UDP. I'm thinking something akin to whatever is used in C-More to communicate using symbolic addressing. I'm thinking it would be nice to not have to map values and be able to use a PC to log to a database. If native comms isn't available, what's the closest thing to this?

[BobO]

Is there by chance a way to natively communicate with BRX controllers using a standard library in something like C++ or Python over TCP/UDP. I'm thinking something akin to whatever is used in C-More to communicate using symbolic addressing. I'm thinking it would be nice to not have to map values and be able to use a PC to log to a database. If native comms isn't available, what's the closest thing to this?

If you are OK with read only, the REST API is perfect for that. We will eventually be adding write access, but not until we can support HTTPS on the web server.

[Bolt]

I've used pyModbus to write to the PLC. It works well. I'm sure there's similar available for C++. The reading can be done with either also with pyModbus or like BobO says, REST API into the python application.

[RBPLC]

Is there by chance a way to natively communicate with BRX controllers using a standard library in something like C++ or Python over TCP/UDP. I'm thinking something akin to whatever is used in C-More to communicate using symbolic addressing. I'm thinking it would be nice to not have to map values and be able to use a PC to log to a database. If native comms isn't available, what's the closest thing to this?

If you are OK with read only, the REST API is perfect for that. We will eventually be adding write access, but not until we can support HTTPS on the web server.

I thought REST might be the answer. The Python requests module takes about 4 lines of code to get this to work. Initially I'm just targeting read only for data storage. With a little experimentation, it looks like requests are limited to about 128 DWords at a time. Is this correct?

[BobO]

I thought REST might be the answer. The Python requests module takes about 4 lines of code to get this to work. Initially I'm just targeting read only for data storage. With a little experimentation, it looks like requests are limited to about 128 DWords at a time. Is this correct?

128 is the max length for a single array reference. You can have multiple references per query. The other limitation is the total size of the response.