KNX LogicMachine3 Re:actor, Руководство по эксплуатации продукта

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description on error
mb:reportslaveid()
Reads slave internal data. Returns values on success and nil, error description on error.
7.2. Visualizing Modbus objects
Use
grp.write to assign Modbus object to KNX object and then use this new KNX object in the
visualization.
7.3. Usage example (Modbus TCP)
Task: read three registers from Modbus TCP device and write the result in Alerts.
1.
-- initmodbus on first script execution
2. ifnot mb then
3. require ( 'luamodbus' )
4. mb = luamodbus.tcp ()
5. end
6.
7.
-- prepare connection to given ip and port
8. mb:open ( '192.168.1.100' , 1502 )
9.
10. -- open connection and check the result
11. if mb:connect () then
12.
-- read 3 input registers, function returns 3 variables
13. local x, y, z = mb:readinputregisters ( 1 , 3 )
14.
15. -- first variable will be nill if read failed
16. if x then
17. local message = string.format ( '1: %d; 2: %d; 3: %d' , x, y, z )
18. alert ( message )
19. end
20.
21. -- end session
22. mb:close ()
23. else
24. alert ( 'connection failed' )
25. end