CoolMasterNet integration

Example: CoolMasterNet integration

Task

CoolMasterNet device uses TCP instead of RS-232 for communication (as showed in this example), so we’ve updated the script to work with IP.

Create objects on LogicMachine

All objects must have VRV tag set.

Set object names, using the following scheme (full address and function):

L1.101 on/off – 1-bit, unit on/off control

L1.101 setpoint – unit setpoint, 2-byte floating point

L1.101 mode – unit mode, 1-byte (0 = cool, 1 = heat, 2 = fan, 3 = dry, 4 = auto)

L1.101 fspeed – fan speed, 1-byte (0 = low, 1 = medium, 2 = high, 3 = top, 4 = auto)

L1 on/off – 1-bit, on/off control for all units on a given line

L* on/off – 1-bit, on/off control for all units on all lines

You can create status objects by adding “status” to object name, example:

L1.101 on/off status

L1.101 setpoint status

L1.101 mode status

L1.101 fspeed status

L1.101 temp status – room temperature, 2-byte floating point

Note! L1 corresponds to “Line 1” and 101 corresponds to address of A/C unit which are both programmed on CoolMaster device.

Resident script

Create a resident script with 0 sleep interval, change 192.168.3.20 to CoolMasterNet device IP. Status information is polled every 3 seconds.

Source code