47
Fieldbus Valve Coupler FD0-VC-Ex4.FF
Transducer block
Subject to reasonable modifications due to technical advances.
Copyright Fuchs, Printed in Germany
Fuchs Group • Tel.: G49 621 776-0 • USA +1 330 4253555 • Sin65 67799091 • Internet http://www.pepperl-fuchs.com
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Transducer block
The column "Char." shows which characteristics or conditions are applicable to this parameter. The follow-
ing is applicable here:
•
OOS (Out of Service)
The parameter can be written only if the target mode of the block is "Out of Service".
•
S (Static)
During each writing process to such an identified parameter the parameter ST_REV is increased by one.
•
W (Writeable)
The parameter can be modified by the user.
As all parameters can be read this is not marked especially.
Parameter
Char.
Description
ST_REV
During each writing process to a parameter marked by "S" the param-
eter ST_REV is increased by one.
TAG_DESC
W
S
Via this parameter the valve interface can be assigned a tag (measur-
ing point designation) within the plant and/or process.
STRATEGY
W
S
The strategy field can be used to identify comprising blocks. These
data are not controlled or used by the block.
ALERT_KEY
W
S
Identification number of the plant unit. This information can be used by
the control system, e.g. to sort alarms. Valid values are 1 ... 65536.
MODE_BLK
W
S
Displays the current, allowed normal mode and the target mode of the
block. The target mode can be set to the values "Auto" or "Out of Ser-
vice".
BLOCK_ERR
Displays diagnosis messages of the block.
UPDATE_EVT
This parameter is used to signal to the control system that a parameter
marked by "S" was overwritten if the control system supports alarm
messages.
BLOCK_ALM
This parameter is used to signal to the control system diagnosis mes-
sages displayed in BLOCK_ERR and XD_ERROR, if the control sys-
tem supports alarm messages
Transducer Directory
TRANSDUCER_DIR
This directory includes information of the structure of the transducer
block.
Transducer type
TRANSDUCER_TYPE
Includes information of the type of transducer block (manufacturer
specific).
XD Error
XD_ERROR
Displays diagnosis messages of the block.
Collection Directory
COLLECTION_DIR
This directory includes information of the structure of the transducer
block.
Associated channel
ASSOCIATED_CHANNEL
This channel number must be entered in the "CHANNEL" parameter
of a DO function block in order to connect it with the transducer block.
Final value
FINAL_VALUE_D
Includes the valve reference value prescribed by the connected DO
function block.
Valve Lead Fault Monitoring
VALVE_LEAD_
FAULT_MONITORING
W
S
In this parameter the lead breakage and/or lead short circuit monitor-
ing can be activated for the valve wiring.
Valve Lead Fault
VALVE_LEAD_ FAULT
Lead breakage and lead short circuit of the valve wiring are displayed
here if monitoring has been activated.
Actuator Fail Action
ACT_FAIL_ACTION
W
S
OOS
In this parameter the mechanical safety position of the actuator (drive
unit) is parameterised. Parameterisation is required for the proper
functioning of the transducer block. Possible values are "self-opening"
and "self-closing".
Actuator manufacturer
ACT_MAN
W
S
Name of actuator manufacturer.
