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40. Modbus (for FH-xMxSH1 models)
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SLAVE_Y with Modbus (
M01
=0 and
M03
=1) and can communicate remotely with the Modbus Master unit (
M01
=1). The default
communication values are: baud=19200, parity=equal, address=1.
All parameters and variables are accessible as holding registers and R/W operations can be implemented using function
codes FC=03, 06, 16.
Considering the large number of parameters, the protocol can read up to 125 variables at a time.
Select a suitable timeout between readings, in relation to the baud rate.
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Values in °C for the temperatures and setpoint are sent on the Modbus network multiplied by 10.
Example: a -150 value on Modbus corresponds to a real temperature of -15.0°C.
Values in °F for temperatures and
SET_DEW_PT_CALCULATED
are sent on the Modbus network multiplied by 10.
Values in °F for the temperatures and setpoints are sent on the Modbus network multiplied by 10.
Registers
Description
Min
Max.
R/W
8000
STATE_DI1
o
0=Contact
DI1
open, 1=Contact
DI1
closed
0
1
R
8001
STATE_DI2
o
0=Contact
DI2
open, 1=Contact
DI2
closed
0
1
R
8002
INT_TEMP_COMP
o
internal sensor temperature (°C [°F])
(Note1)
-150 [5]
900 [195]
R
8003
TEMP_AI1
o
remote sensor 1 temperature (°C [°F])
(Note1)
-150 [5]
900 [195]
R
8004
TEMP_AI2
o
remote sensor 2 temperature (°C [°F])
(Note1)
-150 [5]
900 [195]
R
8005
TEMP_AI3
o
remote sensor 3 temperature (°C [°F])
(Note1)
-150 [5]
900 [195]
R
8006
INT_HUM_COMP
o
internal humidity sensor (% R.H.)
0
100
R
8007
0_10V_AI3
o
value connected to the 0...10 V input
AI3
(Note6)
-999
9999
R
8008
STATE_REL1
o
0=Relay 1 deactivated, 1=Relay 1 activated
0
1
R/W
8009
STATE_REL2
o
0=Relay 2 deactivated, 1=Relay 2 activated
0
1
R/W
8010
STATE_REL3
o
0=Relay 3 deactivated, 1=Relay 3 activated
0
1
R/W
8011
STATE_REL4
o
0=Relay 4 deactivated, 1=Relay 4 activated
0
1
R/W
8012
STATE_REL5
o
0=Relay 5 deactivated, 1=Relay 5 activated
0
1
R/W
8013
OUT_A
o
output value
AO1
(volts)
(Note5)
0
100
R/W
8014
OUT_B
o
output value
AO2
(volts)
(Note5)
0
100
R/W
8015
OUT_C
o
output value
AO3
(volts)
(Note5)
0
100
R/W
8016
WORKING_TEMP_ZONE_1
o
operating temperature zone 1
(Note1)
-200 [-4]
900 [195]
R
8017
WORKING_SET_ACTUATOR_1
o
operating setpoint
WHS
or
WCS
zone 1
(Note2)
see para-
meters
see para-
meters
R
8018
WORKING_TEMP_ZONE_2
o
operating temperature zone 2
(Note1)
-200 [-4]
900 [195]
R
8019
WORKING_SET_ACTUATOR_2
o
operating setpoint
WHS
or
WCS
zone 2
(Note2)
see para-
meters
see para-
meters
R
8020
WORKING_TEMP_ZONE_3
o
operating temperature zone 3
(Note1)
-200 [-4]
900 [195]
R
8021
WORKING_SET_ACTUATOR_3
o
operating setpoint
WHS
or
WCS
zone 3
(Note2)
see para-
meters
see para-
meters
R
8022
WORKING_TEMP_ZONE_4
o
operating temperature zone 4
(Note1)
-200 [-4]
900 [195]
R
8023
WORKING_SET_ACTUATOR_4
o
operating setpoint
WHS
or
WCS
zone 4
(Note2)
see para-
meters
see para-
meters
R
8024
SET_COMP_CALC_COOL
o
calculated compensated setpoint for the compensation control in
cooling mode
(Note3)
see
controllers.
see
controllers.
R
8025
SET_COMP_CALC_HEAT
o
calculated compensated setpoint for the compensation control in
heating mode
(Note3)
see
controllers.
see
controllers.
R
8026
SET_DEW_PT_CALCULATED
o
calculated dew point added to the dew point offset
(parameter
I45
see paragraph
³'HZSRLQWIXQFWLRQLQFRROLQJPRGH´SDJH
59
)
(Note4)
see
controllers.
see
controllers.
R
8027
VISU_CONF_CHOOSEN
!LVXVHGWRYLHZWKHVHOHFWHGFRQ¿JXUDWLRQ
(see paragraph
³3DUDPHWHUIDFWRU\VHWWLQJVOHYHOSDVVZRUG´SDJH
36
)
M14
0
23
R
8028
YEAR
o
current year
2012
2100
R
8029
MONTH
o
current month
1
12
R
8030
DAY
o
current day
1
31
R
