CiDRA Passive Sonar Transmitters User Manual
Page 34

Table 5 Modbus Holding Registers (continued)
Address Size
Type Value
Description
Values
3167 2
Float
GVF_SPIKE_FILTE
R_PERCENT
Defines delta of the previous measurement over the
range below which the flow rate is deemed valid.
3169 2
Float
S1_DAMPING_TAU
Damping time in seconds for the damping filter for
Sensor 1 input.
3171 2
Float
S2_DAMPING_TAU
Damping time in seconds for the damping filter for
Sensor 2 input.
3501 1
Short
S1_1ST_ORDER_D
AMPING_FILTER_E
NABLE
Enables or Disables damping filter for Sensor 1 4-20mA
input.
0 = Disable, 1 = Enable
3502 1
Short
S2_1ST_ORDER_D
AMPING_FILTER_E
NABLE
Enables or Disables damping filter for Sensor 2 4-20mA
input.
0 = Disable, 1 = Enable
3503 1
Short
VF_NR_FILTER_EN
ABLE
Enables or Disables Noise Reduction Filter of the VF
Flow Rate.
0 = Disable, 1 = Enable
3504 1
Short
VF_LOW_FILTER_A
RRAY_LEN
Defines the length of the delta array for VF.
3505 1
Short
VF_HIGH_FILTER_
ARRAY_LEN
Defines the length of the delta array for VF.
3506 1
Short
VF_1ST_ORDER_D
AMPING_FILTER_E
NABLE
Enables or Disables 1st Order Damping Filter of the VF
Flow Rate.
0 = Disable, 1 = Enable
3507 1
Short
VF_SPIKE_FILTER_
ENABLE
Enables or Disables Spike Filter of the VF Flow Rate.
0 = Disable, 1 = Enable
3508 1
Short
VF_SPIKE_NO_FLO
W_LEN
Number of good measures during initialization before VF
spike filter passes measurements as ‘good’.
3509 1
Short
VF_SPIKE_FILTER_
LEN
Defines the number of consecutive valid measurements
before displaying flow rate.
3510 1
Short
VF_SPIKE_UP_CO
UNT
Number of counts to INCREMENT the VF Bad Quality
counter when measured VF quality is below the
minimum.
3511 1
Short
VF_SPIKE_DOWN_
COUNT
Number of counts to DECREMENT the VF Bad Quality
counter when measured VF quality is below the
minimum
20959-01 Rev 02
Page 3-19