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+--- Thread: Turck modbus communication (/showthread.php?tid=2750)
Turck modbus communication - CristianAgata - 27.07.2020
Hi everyone, I'm trying to communicate with a Turck gateway, I have write a simple resident script to ask cyclical a value of the power supply, it works for a n numbers of request then the Turck passes me 'nill'
Any suggest?
Best regards
This is my script
if not mb then
require('luamodbus')
mb = luamodbus.tcp()
mb:open('192.168.0.162', 502)
mb:connect()
log('stato modebus ', mb)
end
-- loop while condition is met
while (1) do
-- read from address 1000
value = mb:readinputregisters(9216)
log('valore di value',value)
-- wait for 1.5 seconds
os.sleep(5.5)
end
RE: Turck modbus communication - admin - 27.07.2020
Your script does not handle disconnect from the modbus device. You should use profile instead because it can reconnect automatically.
RE: Turck modbus communication - CristianAgata - 27.07.2020
Ok thanks so I need to create a profile.
Best regards