Parameters – Rockwell Automation 1757-FFLDC4 FOUNDATION Fieldbus System User Manual User Manual
Page 116

116
Rockwell Automation Publication 1757-UM012A-EN-P - July 2011
Chapter 7 Linking Device Function Blocks
Parameters
describes parameters for the Logix Block.
See
for data type and structure definitions
.
Table 8 - LGX Block Parameters
Index
Parameter
Data Type
(length)
Valid Range/
Options
Default
Value
Units
Edit
Mode
Description
1
ST_REV
Unsigned16
0
None
RO
The revision level of the static data associated with the
function block. The revision value is incremented each
time a static parameter value in the block is changed.
2
TAG_DESC
OctString(32)
Spaces
N/A
AUTO
The user description of the intended application of the
block.
3
STRATEGY
Unsigned16
0
None
AUTO
Can be used to identify grouping of blocks. This data is
not checked or processed by the block.
4
ALERT_KEY
Unsigned8
1 to 255
0
None
AUTO
The identification number of the plant unit.
5
MODE_BLK
DS-69
OOS
N/A
AUTO
See MODE Block Parameter in Chater 2 of the
FOUNDATION Fieldbus Design Considerations
Reference Manual, publication
.
6
BLOCK_ERR
Bitstring(2)
E
RO
Reflects the error status associated with the hardware
or software components associated with a block.
Because it is a bitstring, multiple errors can be shown.
7
SLOT
0 to 15
0
OOS
Identifies the virtual slot location of the Logix Block in
this linking device.
8–15
IN_0– IN_7
DS-66
AWL
Analog inputs.
16–23
IN_D0–IN_D7
DS-65
AWL
Digital inputs.
24–31
OUT_0–OUT_7
DS-65
AWL
Analog outputs.
32–39
OUT_D0–OUT_D7
DS-65
AWL
Digital outputs.
40
UPDATE_EVT
DS-73
N/A
RO
This alert is generated by any change to the static data.
41
BLOCK_ALM
DS-72
N/A
RO
The block alarm is used for all configuration, hardware,
connection failure or system anomalies 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.
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