Both of my are ported so I don't doubt it. StelPro Ki for my baseboard heat and 2gig CT100 for the furnace/ac.
So I set my CT100 to the generic driver to see. Even more interesting. House initially set at 67deg heatsetpoint and 75deg cooling setpoint. Issue the command to set the "House Thermostat" to 66 degrees. I ended up with a heating setpoint of 63 (cooling didn't change) and a 'thermostatSetpoint" of 66. Looked on the actual thermostat and it's showing 63 deg setpoint. I asked for it to be raised to 67 again and the heatsetpoint went up to 64. themostatSetpoint went to 67.