Good Afternoon,
I am working on implementing a test gateway on an LG 1-1 VRF system.
I have the Gateway in series after the handheld device. I have all of the dip switches set to off except for the first (very left) MODBUS switch.
In my controller software, I have the attached MODBUS port setup but I cannot seem to read anything on the Modpus Point. I get the Modbus point status “connection timed out”.
Can you please assist me with this?
Thank you,
Tyler Bradburn, C.E.T.
Controls Specialist
Hello Tyler,
I believe we spoke yesterday on this issue. Unfortunately our calls were getting dropped mid conversation.
Is the Handheld device configured as a master? Also, what is the dipswitch configuration for SW3?
Good Morning Kevin,
After our calls were dropped, I uninstalled the handheld device. The dip switches for SW3 are now configured as in the attached photos. I have the first switch
on (very left) and I have the baud rate to be set to 9600 (very right switch on).
Best regards,
Tyler Bradburn, C.E.T.
Controls Specialist
Hello,
Your current configuration for the switches show the following
Switch 1
Master
Machine Type A
Min Ambient Temperature
(REVERT SWITCH TO HI) as stated in the installation guide
Switch 2
Slave Address 62
Baudrate: 48000 BPS
Switch 3
Temperature in Decidegrees
Farehiet
Terminating resistor at end of RJ485
I would verify the slave address of the AC, and the baudrate required.
I have attached the installation manual for your reference on the dipswitches below.
