6
6
Function code and Data address
6.3 Holding Register
Read using function code 03 and write using function code 06/ 16.
Function code 06 is single holding register, and function code 16 is multiple holding register.
Broadcast request is available ONLY when function code is 06/16.
Function
Code
Address Modicon
Address
Register
Name
Details
System No.*
1
1-4,6 5,7
Read:03
Write: 06/ 16
0
40001
Capacity
request
(from Local
controller)
OFF, Step1-Step11, Auto
step mode
• Auto step mode is
Read only
0(0x0000)=OFF
1(0x0001)=Step1 (Min.)
2(0x0002)=Step2
~~~~
11(0x000B)=Step11 (Max.)
12(0x000C)=Auto step mode (Auto)
• If the interface unit receives other data, received data will be
cancelled.
• OFF=DriveOFF / Others=DriveON
• When reading and the intelligent multiple outdoor unit control is
used, response of the sub interface unit becomes "12 (0x000C)",
because capacity request is only for the main interface unit.
N/A
1
40002
Drive Mode
1 (0x0001) = Heating mode, 3 (0x0003) = Cooling mode,
7(0x0007) = Fan mode, 8 (0x0008) = Auto change over
• If the interface unit receives other data, received data will be cancelled.
2
40003 Temperature
Setpoint
Cooling: 12~30°C
Heating: 17~28°C
Auto change over: 17~28°C
(by 1°C)
0(0x0000)=0°C
10(0x000A)=1.0°C
20(0x0014)=2.0°C Actual set point × 10 = Communication data
~~~~
300(0x012C)=30.0°C
• If the interface unit receives other data, received data will be
cancelled.
• When the interface unit receives decimal value, value will be
round down.
N/A
3
40004
Drive ON/OFF
0=OFF / 1=ON
• If the interface unit receives other data, received data will be cancelled.
N/A
4
40005
Error Code
(hex)
[READ ONLY]
0x8000=No error
0x8000≠Error Code
*2
5
40006
Error Code
(decimal)
[READ ONLY]
8000=No error
8000≠Error Code
*2
6
40007 Step status
[READ ONLY]
OFF,Step1-Step11,Auto
step mode
0(0x0000)=OFF
1(0x0001)=Step1 (Min.)
2(0x0002)=Step2
~~~~
11(0x000B)=Step11 (Max.)
12(0x000C)=Auto step mode (Auto)
• When the intelligent multiple outdoor unit control is used, step
status shows devided capacity step of each interface unit.
7
40008
Ref.address
[READ ONLY]
0x0000=address0
0x0001=address1
~~~~
0x000F=address15
8
40009
Modbus
Comms
Counter
[READ ONLY]
Value or a counter which increments upon every valid Modbus command received.
0=0count
1=1count
~~
65535=65535count
• When the counter becomes more than 65535, it΄s cleared.
*1. Refer to the section 1 "System". "
" means available, and "N/A" means NOT available.
*2. Meanings of error codes, please see Table 6.
< Table 6 : Error codes >
Error code
(Modbus)
Error code
(Remote controller)
Discription
5101
P1
Refer to the
installation manual.
5102
P2
1503
P6 (Freezing)
1504
P6 (Overheating)
5103
P9
6831
6834
"E0" or "E4"
6201
E1
6202
E2
Error code
(Modbus)
Error code
(Remote controller)
Discription
6832
6833
"E3" or "E5"
Refer to the
installation manual.
6840
6843
E6
6842
E7
0404
Fb
1514
PL
5111
PU
7130
EE
< Continued from the previous page. >
