Logic Solver Digital Valve Controller function block parameters

None

NVM:

Preserved on Download

Contains the runtime value for the following conditions (inactive = 0, active = 1):

• Output Failure

• Input Failure/Bad PV

• Fault State is Active

0

Access:

Tuning

NVM:

Restored on Restart

The block input from an upstream function block, typically a safety shutdown signal where 0 = trip.

5

(Seconds)

Access:

Configurable, Tuning

NVM:

Restored on Restart

The number of seconds to allow for PV_D to confirm in the 0 state following a transition of OUT_D to Off

0

(Seconds)

NVM:

Preserved on Download

This timer starts when OUT_D transitions from On to Off. The timer's value increments from 0.0 seconds to CFM_TRIP_TIME seconds. The value is retained until a subsequent transition of OUT_D to Off.

None

NVM:

Preserved on Download

Contains the runtime value of alarm conditions set by the block (inactive = 0, active = 1):

• Failed to confirm after trip command

• Confirm lost while commanded On

For a description of the alerts and information on how to access them, refer to DO_ALERTS.

Not Active

NVM:

Preserved on Download

Indicates whether the fault state is currently Not Active or Active.

All options enabled

Access:

Configurable, Tuning

NVM:

Restored on Restart

Configurable fault state options:

• Enable detection based on CAS_IN_D status

• Enable detection based on output status

• Enable detection based on PV_D value

300

(Seconds)

Access:

Configurable, Tuning

NVM:

Restored on Restart

The number of consecutive seconds of Bad status allowed on CAS_IN_D before the fault state becomes active and the block forces OUT_D to the off-state value of 0. Setting FSTATE_TIME to 0.0 causes the fault state to occur immediately when status is Bad.

0

(Seconds)

Access:

Tuning

NVM:

Preserved on Download

This timer starts when a new fault state condition is detected on CAS_IN_D. When the fault state condition clears, FSTATE_TIMER retains its value until the next time a fault state condition is detected on CAS_IN_D.

0

(Hours)

NVM:

Preserved on Download

The value of FSTATE_TIMER in hours.

None

Access:

Configurable

The configured output, always a HART Two-state Output.

0 milliamps

Access:

Configurable, Tuning

NVM:

Restored on Restart

Configured off current for valve controller. Choices are:

• 0 milliamps

• 4 milliamps

0

NVM:

Preserved on Download

The output value written to the channel or CHARM defined by IO_OUT. (1 = 20, 0 = current defined by OFF_CURRENT.)

Off

NVM:

Preserved on Download

Indicates the current state of OUT_D:

• Off (0)

• Off - Ready to Reset (0)

• On (1)

None

NVM:

Preserved on Download

Contains the runtime value for the following conditions (inactive = 0, active = 1):

• Last test denied

• No successful test in the required interval.

• Last test failed.

For a description of the alerts and information on how to access them, refer to PST_ALERTS.

0

(Hours)

NVM:

Preserved on Download

The time until the start of the next periodic partial stroke test, if greater than zero).

0

(Hours)

Access:

Configurable, Tuning

NVM:

Restored on Restart

The configured time between periodic partial stroke tests.

0

(Hours)

Access:

NVM:

Restored on Restart

The maximum allowed time between successful partial stroke tests before an alert is issued.

Only CSLS major revision 2 or higher supports this parameter. Only certain field devices support this parameter (Fisher Controls DVC6200 firmware revision 7 or later).

Unsupported

None

Only CSLS major revision 2 or higher supports this parameter. Only certain field devices support this parameter (Fisher Controls DVC6200 firmware revision 7 or later).

0

(Hours)

NVM:

Preserved on Download

The time elapsed since the last successful partial stroke test.

False

Access:

Tuning (SLS 1508 and CSLS major revision 1)

Operating (CSLS major revision 2 or higher)

Changing this parameter to True initiates an on-demand partial stroke test. The block resets PST_START to False when the test is no longer in progress.

Idle

NVM:

Preserved on Download

Indicates the current state of the partial stroke testing:

• Idle

• Armed

• PST in Progress.

300 (Seconds)

Access:

Configurable (CSLS major revision 2 or higher)

Determines the partial stroke test timeout period.

Only CSLS major revision 2 or higher supports this parameter.

0

NVM:

Preserved on Download

The readback value or, if RDBK_IN_D is not connected, the output value (OUT_D).

0

Access:

Tuning

NVM:

Restored on Restart

Feedback of the actual state of the DVC6000ESD from a downstream function block.

None

Access:

Configurable, Tuning

NVM:

Restored on Restart

Configurable options for block reporting features:

• Alarm conditions do not roll up to module level.

• Event records are not generated.

These options apply only to block alarms and events and not user-defined module alarms.

False

Access:

Configurable, Tuning

NVM:

Restored on Restart

When REQUIRE_RESET is True, RESET must be set to True for OUT_D to transition to On (1) from Off-Ready to Reset..

False

Access:

Tuning (SLS 1508 and CSLS major revision 1)

Operating (CSLS major revision 2 or higher)

NVM:

Preserved on Download

If REQUIRE_RESET is True RESET must be True for OUT_D_STATE to transition from the Off-Ready state to the On state. The block changes RESET back to False.

0

DO_ALERTS.F_CV[1]

1

DO_ALERTS.F_CV[2]

1

PST_ALERTS.F_CV[2]

2

PST_ALERTS.F_CV[3]

3

PST_ALERTS.F_CV[4]