Room units and controllers - Domat International

MODBUS UC200 Room controller V3
5 MSB reserved
6 LSB
reserved
6 MSB
relay 7 LSB R, RAM output relay status (DO1, DO2) bit 0 ... relay 1, heating
bit 1 ... relay 2, cooling
inputs 7 MSB R, RAM input states, binary heating /
cooling demands.
DI1 and DI2 are physical input
states regardless of the inputs
settings setting.
bit 0 ... DI1
bit 1 ... DI2
bit 2 ... heating demand
(PID output heat > 5%)
bit 3 ... cooling demand
(PID output cool > 5%)
pid output HEAT 8 LSB R, RAM heating controller output in %, range 0 .. 100%
pid output
COOL
8 MSB R, RAM cooling controller output in %, range 0 .. 100%
9 LSB reserved
9 MSB reserved
manual control 10 LSB R, W RAM manual output control; if a bit is set
to 1, the output goes to state
defined below (see manual heat
output, manual cool output); if
set to 0, PID output values apply
10 MSB R, W RAM reserved
manual heat
output
manual cool
output
set temp
correction
11 LSB R, W RAM manual heat output setting (only if
the corresponding bit in the
manual control register is set)
11 MSB R, W RAM manual cool output setting (only if
the corresponding bit in the
12 LSB
12 MSB
manual control register is set)
R, W RAM setpoint correction set by user;
resets at each operation mode
change
bit 0 ... reserved
bit 1 ... heat output
bit 2 ... cool output
in %, range 0 .. 100%
in %, range 0 .. 100%
recalculate:
temperature =
read value / 100
actual temp set
point HEAT
13 LSB
13 MSB
3.5°C reads 350
(limits are set in the min and max
rel. temp correction registers)
R, RAM actual heating setpoint incl.
setpoint correction (reg. 12)
0 … 0
199.99 … 19999
-0.01 … 0FFFFhex
-199.99 … 0B1E1hex
recalculate:
temperature =
read value / 100
actual temp set
point COOL
14 LSB
14 MSB
R, RAM actual cooling setpoint incl.
setpoint correction (reg. 12)
0 … 0
199.99 … 19999
-0.01 … 0FFFFhex
-199.99 … 0B1E1hex
recalculate:
temperature =
read value / 100
0 … 0
199.99 … 19999
-0.01 … 0FFFFhex
-199.99 … 0B1E1hex
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