44 OI/266/FF/ADD-EN Rev. B | 2600T Series Pressure transmitters
266 Models - FOUNDATION Fieldbus
Idx Parameter Data Type Size Storage Description / Range / Selections / Note
14 STATUS_OPTS RW S B_STR 2 S
Options which the user can select for the block processing of status. The available selections are:
Bit 0 Initiate Fault Sate if BAD IN
Bit 1 Initiate Fault Sate if BAD CAS_IN
Bit 2 Use Uncertain as Good
Bit 5 Target to Manual if BAD IN
Bit 9 Target AUTO if BAD CAS_IN
Bit 10 Target to Man if BAD TRK_IN_D
Bit 11 IFS if BAD TRK_IN_D
15 IN RW R DS-65 5 N
The Primary Input Value for the block coming from another block. Expressed in PV_SCALE Unit
16 PV_FTIME RW S FLT 4 S 0….60 seconds
Time constant of a single exponential filter for the PV, expressed in seconds. This is the time
necessary for reach the 63% of the variation in input.
17 BYPASS RW S U8 1 S
The normal control algorithm may be bypassed trough this parameter. When bypass is set, the set point value (in percent) will be directly
transferred to the output.
1 OFF
2 ON
18 CAS_IN RW R DS-65 5 N Remote set point value from another block. Expressed in PV_SCALE Unit Code
19 SP_RATE_DN RW S FLT 4 S
0 or > 0
Expressed in PV_SCALE Unit per seconds
Ramp rate at which downward setpoint changes are acted on in Auto mode, in PV units per
second. If the ramp rate is set to zero, then the setpoint will be used immediately. For control
blocks, rate limiting will apply only in Auto.
20 SP_RATE_UP RW S FLT 4 S
Ramp rate at which upward setpoint changes are acted on in Auto mode, in PV units per sec-
ond. If the ramp rate is set to zero, then the setpoint will be used immediately. For control
blocks, rate limiting will apply only in Auto.
21 SP_HI_LIM RW S FLT 4 S
Acceptable value: PV_SCALE +/- 10%
Expressed in PV_SCALE Unit
The setpoint high limit is the highest setpoint operator entry that can be used for the block.
22 SP_LO_LIM RW S FLT 4 S
The setpoint low limit is the lowest setpoint operator entry that can be used for the block.
23 GAIN RW S FLT 4 S
0 or > 0
The proportional gain value.
24 RESET RW S FLT 4 S
0 or > 0
The integral time constant, expressed in seconds per repeat
25 BAL_TIME RW S FLT 4 S 0 or > 0
The specified time for the internal working value of bias to return to operator set bias. Also used
to specify the time constant at which the integral term will move to obtain balance when the
output is limited and the mode is AUTO, CAS, or RCAS. Expressed in seconds
26 RATE RW S FLT 4 S
0 or > 0
The derivative action time constant expressed in seconds
27 BKCAL_IN RW R DS-65 5 N
The analog input value from another block’s BKCAL_OUT output that is used to prevent reset windup and to initialize the control loop.
Expressed in OUT_SCALE Unit Code
28 OUT_HI_LIM RW S FLT 4 S Acceptable value: OUT_SCALE +/- 10%
Expressed in OUT_SCALE Unit
Limits the maximum output value.
29 OUT_LO_LIM RW S FLT 4 S Limits the minimum output value.
30 BCAL_HYS R S FLT 4 S
0 to 50% [Default = 0.5%] – Expressed
as percent of the OUT_SCALE span
The amount that the output must change away from its output limit before the limit status is
turned off.
31 BKCAL_OUT RW R DS-65 5 N Expressed in PV_SCALE Unit
Value and status required by an upper block’s BKCAL_IN so that it may prevent reset windup
and provide bumpless transfer to closed loop control.
32 RCAS_IN RW R DS-65 5 N
Expressed in PV_SCALE Unit
Used when mode is RCAS
Target setpoint value provided by a supervisory host.
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