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MODBUS PARAMETERS
Ad-
Modbus Register
dress
6679
6680
Firmware version
6681
6682
First power up
6683
Calibration error
6684
Calibration error
6685
Low voltage anomaly
6686
High voltage anomaly
Unexpected stalls within
6687
the race
Extra stroke in normal
6688
operation
6689
Actuator stroke
6690
Actuator setting
6691
Actuator speed
LIBRA valve type config-
6692
uration
Characteristic configura-
6693
tion of the valve (β)
6694
Baud rate
6695
Parity bit and stop bit
6147
Opening phase
6148
Closing phase
8841
Actuator control
8842
Actuator operating status
8289
Valve position (feeback)
8290
Valve flow rate
Description
"Firmware version (composed of 3 bytes):
1
byte: major version
st
2
byte: minor version
nd
3
byte: revision version"
rd
Represents the first power up event
Represents the number of times a stroke error has
occurred down the minimum allowed
Represents the number of times a stroke error has
occurred up the maximum allowed
Represents the number of times a low voltage
event has occurred
Represents the number of times a high voltage
event has occurred
Represents the number of times a stall has oc-
curred within the run
Represents the number of times that an extra
stroke error has occurred compared to that cal-
culated during the calibration phase (stroke out
of range)
"Identifies the value read by the actuator after the
calibration phase.
It is possible to set the stroke value but requires
restarting the actuator.
The value must be stored multiplied by 10."
Direct/reverse action setting
Forcing calibration phase
Emergency return direction selection (up or
down)
Fixed stroke
Allows you to set the speed of the actuator
By selecting the type of PICV LIBRA valve, the
stroke value is automatically set to 4 mm and
reverse action
It represents the characteristic of the valve (β= 0
linear valve, β=1 equal percentage valve)
Represents the communication speed of the Mod-
bus protocol (9600, 19200)
2 least significant bits (bits 0 and 1):
parity bit (0 = none, 1 = even, 2 = odd)
bit 4: stop bit (0 = 1 stop bit, 1 = 2 stop bit)
It is the number of times the actuator has been in
the total opening position
It is the number of times the actuator has been in
the total closing position
Represents the percentage of control of the ac-
tuator (by setting a value between 0 and 100% it
allows to drive the motor in any position)
Represents the current operating status of the
actuator (based on the status of the LEDs)
Represents the position of the actuator
In the case of selection of the PICV, it represents
the percentage flow rate value (the value of the
feedback register is not available)
Range
Default
0-FFFFFF
0xFFFFFF
0xCF value
0xFF
0-FE
0xFF
0-FE
0xFF
0-FE
0xFF
0-FE
0xFF
0-FE
0xFF
0-FE
0xFF
20-120
FF (there is no need to
(2 mm-12 mm)
initialize the value)
Direct action (bit0=1)
Calibration not enabled
(bit1=1)
0-15
Up (bit2=1)
Fixed stroke not enabled
(bit3=1)
207 (5 s/mm)
"207
or
(5 s/mm)"
119 (3 s/mm)
0-1
0 (NO PICV)
0-1
0
0-2
0x00
0-16
16
0-65279
0xFFFF
0-65279
0xFFFF
0-100%
0
0-16
0xFF
FF (there is no need to
0-100%
initialize the value)
FF (there is no need to
0-100%
initialize the value)
Persis-
RD/WR
tence
RD
YES
RD
YES
RD
YES
RD
YES
RD
YES
RD
YES
RD
YES
RD
YES
RD/WR
YES
RD/WR
YES
RD/WR
YES
RD/WR
YES
RD/WR
YES
RD/WR
YES
RD/WR
YES
RD
YES
RD
YES
RD/WR
NO
RD
NO
RD
NO
RD
NO
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