AXAIM020-01 (AUTO-48) 3/03 Page 15 of 16
© 2003, Flowserve Corporation, Printed in U.S.A.
BUSwitch
™
with FOUNDATION
®
Fieldbus Protocol
Installation, Operating and Maintenance Instructions
Flowserve Corporation 1350 N. Mountain Springs Parkway 1978 Foreman Dr.
Flow Control Division Springville, Utah 84663-3004 Cookeville, TN 38501
www.flowserve.com Phone: 801 489 8611 Phone: 931 432 4021
Rel.
Index
Parameter Factory
Default
Description
acknowledged.
22 DISC
_
PRI Priority of the discrete alarm.
23 DISC
_
LIM State of discrete input, which will generate an alarm.
24 DISC
_
ALM The status and time stamp associated with the discrete alarm.
21 ACK_OPTION Selection of whether alarms associated with the block will be automatically
Rel.
Index
Parameter Factory
Default
Description
1 ST_REV The revision level of the static data associated with the function block. To
support tracking changes in static parameter attributes, the associated block’s
static revision parameter will be incremented each time a static parameter
attribute value is changed. Also, the associated block’s static revision
parameter may be incremented if a static parameter attribute is written but the
value is not change
d.
2 TAG
_
DESC The user description of the intended application of the block.
3 STRATEGY The strategy field can be used to identify grouping of blocks. This data is not
checked or processed by the block.
4 ALERT_KEY The identification number of the plant unit. This information may be used in
the host for sorting alarms, etc.
5 MODE
_
BLK Auto The actual, target, permitted, and normal modes of the block.
6 BLOCK_ERR This parameter reflects the error status associated with the hardware or
software components associated with a block. It is a bit string, so that multiple
errors may be show
n.
7 PV_D Calculated from the READBACK_D value of a DO block, this variable
indicates the valve position. It may be linked to BKCAL_OUT and fed back to
the sending block.
8 SP
_
D The discrete setpoint of this block.
9 OUT
_
D 0 The primary discrete value calculated as a result of executing the function
.
10 SIMULATE_D Allows the transducer discrete input or output to the block to be manually
supplied when simulate is enabled. When simulation is disabled, the simulate
value and status track the actual value and status
.
11 PV
_
STATE Index to the text describing the states of a discrete PV.
12 XD_STATE Index to the text describing the states of a discrete for the value obtained from
the transducer
.
13 GRANT_DEN
Y
Options for controlling access of host computer and local control panels to
operating, tuning and alarm parameters of the block.
14 IO
_
OPTS Options which the user may select to alter input and output block processi
ng.
15 STATUS_OPT
S
Options which the user may select in the block processing of status
.
16 READBACK_
D
This indicates the readback of the actual discrete valve or other actuator
position, in the transducer st
ate.
17 CAS_IN_D This parameter is the remote setpoint value of a discrete block, which must
come from another Fieldbus block, or a DCS block through a defined link
.
Appendix B. Discrete Output Block Parameters
The following table provides a list of all DO block parameters. Critical Factory Default values are highlighted.
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