Flowserve BUSwitch with Foundation Fieldbus Communications Protocol - Manual (Page 14)

AX
ENIM0048-01 (Firmware Rev. Nov. 12 99) (AUTO-48) 11/01
Page 14 of 16
©2001, Flowserve Corporation, Springville, UT
Flowserve Corporation 1350 South Mountain Springs Parkway Phone: 801
489 2233
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Automax Valve Automation Systems
Product Specification
Appendix A. Discrete Input Block Parameters
The following table provides a list of all DI block parameters. Critical Factory Default values are highlighted.
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 changed.
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 shown.
7 PV_D Either the primary discrete value for use in executing the function or a
process value associated with it. May also be calculated from the
READBACK_D value of a DO block.
8 OUT_D The primary discrete value calculated as a result of executing the function.
9 SIMULATE Allows the transducer analog 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.
10 XD_STATE Index to the text describing the states of a discrete for the value obtained
from the transducer.
11 OUT_STATE Index to the text describing the states of a discrete output.
12 GRANT_DEN
Y
Options for controlling access of host computer and local control panels to
operating, tuning and alarm parameters of the block.
13 IO_OPTS Options which the user may select to alter input and output block
processing.
14 STATUS_OPT
S
Options which the user may select in the block processing of status.
15 CHANNEL 1 for DI-1
2 for DI-2
3 for DI-3
4 for DI-4 The number of the logical hardware channel that is connected to this I/O
block. This information defines the transducer to be used going to or from
the physical world.
16 PV_FTIME Time constant of a single exponential filter for the PV, in seconds.
17 FIELD_VAL_D Raw value of the field device discrete input, with a status reflecting the
Transducer condition.
18 UPDATE_EVT This alert is generated by any change to the static data.
19 BLOCK_ALM The block alarm is used for all configuration, hardware, and connection
failure or system problems in the block. The cause of the alert is entered in
the subcode field. The first alert to become active will set the Active status
in the Status attribute. As soon as the Unreported status is cleared by the
alert reporting task, another block alert may be reported without clearing the
Active status, if the subcode has changed.
20 ALARM_SUM The current alert status, unacknowledged states, unreported states, and
disabled states of the alarms associated with the function block.