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+--- Thread: Visualizing Modbus objects (/showthread.php?tid=898)
Visualizing Modbus objects - Rodriguez - 12.07.2017
Hi,
I am working with the example of writing and reading in the modbus:
http://openrb.com/example-write-modbus-rtu-multimeter-values-to-knxeib-bus-group-addresses/
and generate reading to a meter, my question is: to be able to read the data I got, from another logical machine, how should I work? Through an object or a function?
Thanks.
RE: Visualizing Modbus objects - admin - 12.07.2017
If both LMs have KNX/IP enabled, they will exchange object values automatically.
RE: Visualizing Modbus objects - Rodriguez - 12.07.2017
Thank you, Admin.
But maybe I did not know how to explain myself,
I have a server that reads modbus TCP ip and I need to pass the logic data to this server, how do I do it?
RE: Visualizing Modbus objects - admin - 12.07.2017
Then I don't fully understand your question: does your server support Modbus TCP?
RE: Visualizing Modbus objects - Rodriguez - 13.07.2017
This generating a test to be able to check the Modbus TCP communication, but when I put four data it jumps to the next address and does not take me in data that I send it. What could be failing?
I am using this code: http://openrb.com/lm-as-modbus-tcp-slave
CODE:
if not mb1 then
require('luamodbus')
mb1 = luamodbus.tcp()
mb1:open('192.168.0.10', 502)
mb1:connect()
end
--Data1ModbusTCP
coil = mb1:readcoils(0)
grp.write('5/1/1', coil)
--Dato2ModbusTCP
coil2 = mb1:readcoils(0)
grp.write('5/1/2', coil2)
--Dato3ModbusTCP
register = mb1:readregisters(0)
grp.write('5/1/3', register)
--register2 = mb1:readregisters(0)
--grp.write('5/1/4', register2)
RE: Visualizing Modbus objects - admin - 14.07.2017
Are you running both modbus TCP master and slave on the same LM? Which kind of script are you using to read data - event or resident?
RE: Visualizing Modbus objects - Rodriguez - 17.07.2017
Hi,
No, I am using a logic 2 as a slave and a logic3 as a master, I am reading them through a resident function and writing the data into objects.
RE: Visualizing Modbus objects - admin - 17.07.2017
Can you show both scripts? Keep in mind that if KNX/IP features are enabled on both devices, they will automatically exchange object values.