Rockwell Automation 1757-FFLDC4 FOUNDATION Fieldbus System User Manual - Manual (Page 106)

106 Rockwell Automation Publication 1757-UM012A-EN-P - July 2011
Chapter 7 Linking Device Function Blocks
RES - Resource Block The resource block contains data specific to the linking device’s hardware. All
data is modeled as contained, so there are no links to this block. The data is not
processed in the way that a function block processes data, so there is no function
schematic.
One resource block must be included in each linking device.
Block Use
The actual mode of the resource block is used to control major states of the
linking device. The Out of Service (OOS) mode stops all function block
execution in the linking device. The actual mode of all function blocks will be
changed to OOS, but the target mode will not be changed. Automatic (AUTO)
mode allows normal operation of the linking device. IMan indicates that the
linking device is initializing or receiving a software download.
The MANUFAC_ID, DEV_TYPE, DEV_REV, DD_REV, and
DD_RESOURCE parameters are required to identify and locate the DD so that
Device Description Services can select the correct DD for use with the
linking device.
RESTART Parameter
The RESTART parameter allows degrees of initialization of the linking device.
Some parameter values may appear very briefly when viewing through online
characterization because the parameter returns to Run shortly after being written.
Value Reset Type Description
1 Run Run is displayed while the linking device is operating normally. It returns
to this value after the Restart is transmitted.
2 Resource Not used (do not select).
3 Defaults All blocks in the linking device are retained, including tag names and
macrocycle timing. All block parameters are reset to default.
4 Processor Not used (do not select).
5 Factory All blocks in the linking device are deleted except for the resource block.
All resource block parameters are reset to factory default, including the
tag name.