Procon A1M - Page 34

32
Holding Register (Analogue Output) Applicable Unit Type
Register Name Addr
Modicon
Address
Details
FTC4 FTC5
CAHV
master
CAHV
slave
CRHV
master
CRHV
slave
QAHV
master
EAHV
master
EAHV
slave
Fault/Error Code (hex)
[READ ONLY]
9 40010
0x8000 = No error
0x6999 = Bad communication with unit
(Refer to indoor unit documentation for description
of other fault code values)
9 9 9 9 9 9
MelcoBEMS MINI (A1M)
Firmware Version
[READ ONLY]
10 40011 MelcoBEMS MINI (A1M) Firmware Version
9 9 9 9 9 9 9 9 9
Modbus Comms Counter
[READ ONLY]
11 40012
Value of a counter which increments upon every
valid Modbus command received. Counter is reset
to zero when value exceeds 65535.
9 9 9 9 9 9 9 9 9
Fault Code (decimal)
[READ ONLY]
12 40013
8000 = No error
6999 = Bad communication between A1M and unit
(Refer to unit documentation for description of other
fault code values)
9 9 9 9 9 9
System Type Detected
[READ ONLY]
13 40014
0 = ATA unit connected
1 = ATW system connected
2 = Lossnay system connected
255 = Undetermined (no unit detected yet)
9 9 9 9 9 9 9 9 9
System On/Off 25 40026
0 = System OFF
1 = System ON
2 = Emergency Run (read only value)
3 = Test Run (read only value)
9 9
9
#14
(9)
#18
9
#14
(9)
#18
9
9
#14
(9)
#18
Operating Mode 26 40027
0 = Stop
1 = Hot Water
2 = Heating
3 = Cooling
4 = No voltage contact input (hot water storage)
5 = Freeze Stat
6 = Legionella
7 = Heating-Eco
8 = Mode 1
9 = Mode 2
10 = Mode 3
11 = No voltage contact input (heating up)
9
#4
(9)
#18
9
#5
(9)
#18
9
9
#13
(9)
#18
Operating Mode (DHW) 27 40028
0 = Normal
1 = Eco
9