Rockwell Automation PLC-5 Fieldbus Solutions for Integrated Architecture User Manual - Manual (Page 73)

Publication 1757-UM006A-EN-P - May 2002
Integrating Fieldbus into Rockwell Automation Logix System 2-29
Live List and Uncommissioned Devices
F OUNDATION Fieldbus defines a live list as a 32-byte bitstring (256 bits)
where each bit represents an address of the fieldbus network. A set bit
at a particular bit number means that a device is present at that
address. The LAS of the network owns the live list and maintains it as
part of its operation.
The FIM constantly monitors the live list for each fieldbus link or
device connected to it. When the LAS for the link recognizes a new
device at a default address, it adds it to its live list according to the
data link layer procedures. The FIM detects the change in the live list
and makes a connection to the new uncommissioned device. It
gathers the following information from the device to be passed to
Control Builder.
Control Builder uses the device information to create an item in its
Monitoring tree to represent the new uncommissioned device on the
given link. Users can now view and configure pertinent information
for the uncommissioned device through appropriate Link block and
device block configuration forms in Control Builder.
Table 2.I Gathered information from device passed to Control Builder
Name Description Data Type Access
PdTag Physical Device Tag 32-byte string Read/Write
Address Device Address Unsigned8 Read/Write
DevID Globally unique Device
Identifier 32-byte string Read Only
Vendor Vendor name string 32-byte string Read Only
ModelName Model Name string 32-byte string Read Only
Rev Application Revision 32-byte string Read Only
ManufID Manufacturer Identifier Unsigned32 Read Only
DevType Device Type code Unsigned16 Read Only
DevRev Device Revision Unsigned8 Read Only
DdRev DD Revision Unsigned8 Read Only
TIP
The FIM must be configured and loaded through
Control Builder before you can view the module.
You can view the module’s links and devices
through the Monitoring tab of Control Builder.