Eubank EAA/EGA Wall Mount AC Installation & Operation Manual
03/2021 Rev.5
31
Registers:
Read with Function Code 04, Write to RW or WO registers with Function Code 06
ID Description Size Data Format R/W
1 Heat Setpoint 16 Bit 45º-100º F RW
2 Cool Setpoint 16 Bit 45º-100º F RW
3 Temperature Calibration 16 Bit
0-20, 10 is default. Less
than 10 is a negative offset,
11-20 is a positive offset
RW
4 W2 Speed Multiplier 16 Bit
0-100, 80 is default.
Represents a percentage of
the Y2 fan speed
RW
5 Dehumidication Speed Multiplier 16 Bit
0-100, 80 is default.
Represents a percentage of
the Y2 fan speed
RW
6 OFM Set Speed 16 Bit 0 - 1023 RW
7 IFM Y1 Set Speed 16 Bit 0 - 1023 RW
8 IFM Y2 Set Speed 16 Bit 0 - 1023 RW
9 Modbus Timout Setting 16 Bit
1 - 60, default 25;
represents minutes of
allowed MODBUS inactivity
before switching to onboard
T-Stat mode
RW
10 Current OFM Speed 16 Bit 0 - 1023 RO
11 Current IFM Speed 16 Bit 0 - 1023 RO
12 Anti Short Cycle Compressor 1 16 Bit 0 - 360, 0.5 sec. per step RO
13 Anti Short Cycle Compressor 2 16 Bit 0 - 360, 0.5 sec. per step RO
14 Voltage Reading 16 Bit
0 - 1023
1023 = Greater than 20V
965 = 18V cutoff
RO
15 P1 Temperature Reading 16 Bit 0º-160º F RO
16 P2 Temperature Reading 16 Bit 0º-160º F RO
17 Freeze Sensor 1 Temperature Reading 16 Bit 0º-160º F RO
18 Freeze Sensor 2 Temperature Reading 16 Bit 0º-160º F RO
19 Alarm Status 16 Bit
0 = No Fault
1 = Future Use
2 = HPS1 Fault
3 = Future Use
4 = HPS2 Fault
5 = Future Use
6 = Future Use
7 = LPS1 Fault
8 = LPS2 Fault
9 = Future Use
10 = Future Use
11 = Future Use
12 = Future Use
13 = Freeze Fault 1
14 = Freeze Fault 2
15 = Y1 Locked Out
16 = Y2 Locked Out
17 = Low Voltage
RO
Table 7b. MODBUS Registers