Logix 3400MD Digital Positioner FCD LGENIM3404-00 – 9/09
26
Fieldbus
Block
Index
Fieldbus Variable
Name
Transducer
Block
Fieldbus
Datatypes
Logix Positioner
R/W
Description
Register
Type
Fix
Pt
Rd
Variable Name
28
BACKOFF_EFFORT
XDTB_TECH
FLOAT
20
S_LONG
NO
Hall_Sum
R
Status, memory Backoff, Control
Term Value
29
SPOOL_POSITION
XDTB_TECH
FLOAT
21
S_INT
/100
Hall_Pct
R
Status, Memory Backoff, Relay
Instant Position
30
SPOOL_EFFORT
XDTB_TECH
FLOAT
22
S_INT
/100
reserved for
spool effort
R
Status, Memory Backoff, Relay
Instant Position
31
PIEZO_OFFSET
XDTB_TECH
FLOAT
24
S_INT
/100
Pzv_Null
R
Status, Piezo, Output Percent @ Null
32
PEIZO_COMMAND
XDTB_TECH
FLOAT
25
S_INT
/100
Pzv_Cmd
R
Status, Piezo, Output Voltage in
Percent
21
PRESSURE_SUPPLY XDTB_MAIN
FLOAT
27
U_LONG
/100
PS_Supply_Press
R
Supply Pressure in User Units (Only
active in Advanced or Pro Models)
22
PRESSURE_PORT_A XDTB_MAIN
FLOAT
28
S_INT
/100
PS1_Pct
R
Port A Pressure in User Units (Only
active in Advanced or Pro Models)
23
PRESSURE_PORT_B XDTB_MAIN
FLOAT
29
S_INT
/100
PS2_pct
R
Port B Pressure in User Units (Only
Active in Advanced or Pro Models)
79
PRESSURE_
DIFFERENTIAL
XDTB_MD
FLOAT
30
S_INT
/100
PS_Delta_Pct
R
Status, Pressure, Delta, Port 1-Port 2
101
FINAL_VALUE_
RANGE
XDTB_MAIN
RECORD
N/A
N/A
N/A
N/A
SRW
Used to limit the command position
received from the AO block. FB Only
Parameter.
Control: Configuration & Gain Parameters
107
CONTROL_CONFIG
XDTB_MAIN
BIT_STRING
38
U_CHAR
NO
Control_Config
NRW
Setup, Valve Configuration (Std/Adv,
DA/SA, etc.)
87
CURVE_SELECT
XDTB_TECH
UNSIGNED 8
39
U_CHAR
NO
Curve_Select
SRW
Select Characterization type when
the Characterization DIP switch is set
to ‘Other’
28
P_GAIN
XDTB_MAIN
FLOAT
40
S_INT
/100
PGain_Max
SRW
Setup, Gain Proportional, Maximum
35
P_GAIN_EFFECTIVE
XDTB_TECH
FLOAT
41
S_INT
/100
Pgain_Instant
R
Control, Gain, Proportional,
Instantaneous
36
P_GAIN_MULT
XDTB_TECH
FLOAT
42
S_INT
/1000 PGain_Mult
SRW
Setup, Gain, Proportional, Multiplier
29
I_GAIN
XDTB_MAIN
INTEGER 16
44
S_INT
NO
IGAIN
SRW
Setup, Gain, Integral
30
D_GAIN
XDTB_MAIN UNSIGNED 16
46
U_INT
NO
DT_Gain_Max
SRW
Setup, Gain, Derivitive, Basic
37
D_GAIN_EFFECTIVE
XDTB_TECH UNSIGNED 16
47
U_INT
NO
DT_Gain_Cur
R
Status, Gain, Derivitive,
Instantaneous
38
D_GAIN_FILTER
XDTB_TECH UNSIGNED 16
48
S_INT
NO
DT_Depth
SRW
Setup, Gain, Derivitive, Depth
31
PRESS_CTRL_
GAIN_MAX
XDTB_MAIN
FLOAT
50
S_INT
/10
PS_Gain_Max
SRW
Setup, Pressure Control, Gain, Basic
39
PRESS_CTRL_
GAIN_EFFECTIVE
XDTB_TECH
FLOAT
51
S_INT
/10
PS_Gain_Cur
R
Status, Pressure Control, Gain,
Instantaneous
40
PRESS_CTRL_
GAIN_MULT
XDTB_TECH
FLOAT
52
S_INT
/100
PS_Mult
SRW
Setup, Pressure Control, Gain,
Multiplier
41
PRESS_CTRL_SP
XDTB_TACH
FLOAT
53
S_INT
NO
PS_Target
SRW
Status Pressure Control, Target
Differential