9.5.
HEATER CONFIG; COIL TYPE REGISTERS (READ/WRITE)
These registers are oriented to a bit data type. Heater will only use these to activate some settings.
They are equivalent to the corresponding bits of holding registers types.
Name
Address
0x120
Temperature scale
0x201
Overheat alarm
0x203
Flow not present
0x20E
Freezing risk
0x211
Temperature scale
0x218
Manual On / Off
9.6.
DISCRETE INPUT TYPE REGISTERS (READ) INFORMATION ON HEATER
Name
Address
Alarm
0x000
Temperature scale
0x001
Manual On / Off
0x008
Overheated
0x011
Flow switch
0x013
Freezing risk
0x01E
0x020
Flow switch
Heating element
0x021
#1#
Heating element
0x022
#2#
Heating element
0x023
#3#
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Initial
Information
value
1
1 = °C
0 = °F
1
Allows writing a 0 to reset the overheating alarm
memory. If we try to write a 1 it returns a type 2
exception.
1
Allows writing a 0 to reset the flow needed and not
present alarm memory. If we try to write a 1 it returns a
type 2 exception.
0
Allows writing a 0 to reset the freezing risk alarm
memory. If we try to write a 1 it returns a type 2
exception.
0
1 = °C
0 = °F
1
1: Turns heater on
0: Turns heater off
Exception code 04 when writing with function 0x05 &
0x06
Initial
Information
value
0
0: No alarms.
1: There is an active alarm.
1
1: °C
0: °F
0
1: Heater on
0: Heater off
0
1: Overheated. Tin or Tout > 55 °C
0: Not overheated
0
0: Flow not needed.
1: Flow not present and needed.
0
1: Freezing risk present
0: No freezing risk
0
1: flow detected
0: flow not detected
0
1: Heating element #1# on
0: Heating element #1# off
0
1: Heating element #2# on
0: Heating element #2# off
0
1: Heating element #3# on
0: Heating element #3# off
.
22