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+--- Thread: Belimo UK24MOD (/showthread.php?tid=2993)
Belimo UK24MOD - benthoma - 18.11.2020
Hi, have someone integrated uk24mod on LM5 ?
What does the script look like to extract the different values of knx?
I need to itegrated 3 on each LM5.
https://www.belimo.eu/CH/EN/Product/FireSmoke/ProductDetail.cfm?MatNr=UK24MOD&CatNr=&TopCatNr=
RE: Belimo UK24MOD - admin - 18.11.2020
You don't need a script but a modbus profile. Which registers do you want to access apart from setpoint?
RE: Belimo UK24MOD - Andey - 18.11.2020
Here is a sample code after quick view on reference manual. Just to help you find a right way.
Code:
require('luamodbus')
mb1 = luamodbus.rtu()
-- RS-485 port name and number. here is RS485, but it can be RS485-1, RS485-2, ttyUSB0
-- connection parameters must to accord device settings
mb1:open('/dev/RS485', 38400, 'E', 8, 1, 'H')
mb1:connect()
-- select modbus slave ID for read/write operations (55 here)
mb1:setslave(55)
--[[
read values
we need to read hold register (command #3)
modbus we can to assess:
#1 - coil
#2 - discrete input
#3 - hold register
#4 - input register
]]--
-- read all registers related to first MP
i0, i1, i2, i3, i4, i5, i6, i7, i8, i9, i10, i11, i12, i13, i14, i15, i16, i17, i18, i19 = mb1:readregisters(0, 20)
-- do something with this information
-- set setpoint to 50
mb1:writeregisters(0, 50)
mb1:close()And my question to LM gurus: what will happens if there are device listed in 'ModBus' table located on the same RS485 bus. I assume that connection parameters are the same and there is no address conflict.
RE: Belimo UK24MOD - admin - 18.11.2020
You should use a profile. If you want to use scripts and mapper on the same port then you need to use modbus proxy. See this for more info: https://forum.logicmachine.net/showthread.php?tid=387&pid=1953#pid1953
RE: Belimo UK24MOD - benthoma - 18.11.2020
(18.11.2020, 12:24)admin Wrote: You don't need a script but a modbus profile. Which registers do you want to access apart from setpoint?
OK, I want access all. Is there a easy way to make modbus profile?
RE: Belimo UK24MOD - Daniel - 18.11.2020
Here is profile documentation: https://openrb.com/docs/modbus.htm
Here are different examples: https://forum.logicmachine.net/showthread.php?tid=839
It is good practice to use RTU read test to check all parameters before creating the profile.