User Manual Manual

108 Rockwell Automation Publication 1757-UM012A-EN-P - July 2011
Chapter 7 Linking Device Function Blocks
Supported Modes
Out of Service (OOS) and AUTO are supported modes for the linking device.
BLOCK_ERR
The BLOCK_ERR of the resource block indicates the following causes for the
error:
• Device Fault State Set – When FAULT_STATE is active.
• Out of Service – When the block is in OOS mode.
Block Configuration Out of Service - Incorrect parameter value or uninitialized
value for a parameter that requires a value or selection for the block to operate.
Parameters
Table 5 describes the resource block parameters.
See page 155
for Data Type and Structure definitions.
Table 5 - RES Block Parameters
Index Parameter Data Type
(length)
Valid Range/
Options
Default
Value
Units Edit
Mode
Description
1 ST_REV Unsigned16 2 bytes 0 None RO The revision level of the static data associated with the
function block. The revision value will be incremented
each time a static parameter value in the block is
changed.
2 TAG_DESC OctString(32) 4 bytes Spaces N/A AUTO The user description of the intended application of the
block.
3 STRATEGY Unsigned16 2 bytes 0 None AUTO The strategy field can be used to identify grouping of
blocks. This data is not checked or processed by the
block.
4 ALERT_KEY Unsigned8 1 byte,
1 to 255
0 None AUTO The identification number of the plant unit. This
information may be used in the host for sorting alarms,
and so on.
5 MODE_BLK DS-69 OOS N/A AUTO See MODE Block Parameter in Chapter 2 of the
FOUNDATION Fieldbus Design Considerations
Reference Manual, publication RSFBUS-RM001
.
6 BLOCK_ERR Bitstring(2) E RO 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 RS_STATE Unsigned8 E RO State of the function block application state machine.
8 TEST_RW DS-85 None AUTO Read/write test parameter - used only for conformance
testing.
9 DD_RESOURCE Visible String(32) Spaces N/A RO Not user configurable.