
PLX51-HART-4I / PLX51-HART-4O
♦
HART Input/Output
Setup
Multidrop Field Devices
User Manual
ProSoft Technology, Inc.
Page 39 of 127
3.7 MultiDrop
When using Multidrop and requiring a HART device at a specific address to be the
“main” HART device (e.g. which will be populated in the Logix Input Assembly), then
the
Fixed HART Address
parameter must be used (see below). This will ensure that
the specified address is used as the main. Should this not be specified, then the
PLX51-HART-4x will scan the specific HART channel and use the first HART device
found as the “main” HART device.
Figure 3.24 – Fixed HART address
The user will need to ensure that each field device on the drop has a unique node
address. This can be verified by initiating a
Device Scan
and checking that each field
device on the network has a unique address (as shown below):
Figure 3.25 – HART Channel Scan