CW-7500 Series
15
4. Read only parameter
(
state
)
Read-only
Register
address
Description
Bit definition
0x0800
Relay output
status
MSByte
Bit7(MSb)
Retain
Bit6
Retain
Bit5
Retain
Bit4
Retain
Bit3
Retain
Bit2
Alarm output relay
0
:
Off
1
:
On
Bit1
Conductivity lower limit relay
0
:
Off
1
:
On
Bit0(LSb)
High temp. heating rod
0
:
Off
1
:
On
LSByte
Bit7(MSb)
High temp. water pump relay
0
:
Off
1
:
On
Bit6
High temp. refrigeration relay
0
:
Off
1
:
On
Bit5
Compressor crankcase
heating
0
:
Off
1
:
On
Bit4
Low temp. heating rod
0
:
Off
1
:
On
Bit3
Low temp. refrigerant
solenoid valve
0
:
Off
1
:
On
Bit2
Condensing fan
0
:
Off
1
:
On
Bit1
Compressor relay
0
:
Off
1
:
On
Bit0(LSb)
Low temp. water pump
0
:
Off
1
:
On
0x0801
Digital input
switch status
MSByte
Bit7(MSb)
Retain
Bit6
Retain
Bit5
Retain
Bit4
Retain
Bit3
Retain
Bit2
Retain
Bit1
Retain
Bit0(LSb)
Retain
LSByte
Bit7(MSb)
Retain
Bit6
Retain
Bit5
External input
0
:
No input 1
:
Input
Bit4
Refrigerant low pressure
0
:
No input 1
:
Input
Bit3
Refrigerant high pressure
0
:
No input 1
:
Input
Bit2
Spare 2
0
:
No input 1
:
Input
Bit1
Spare 1
0
:
No input 1
:
Input
Bit0(LSb)
Water level
0
:
No input 1
:
Input