
PLX51-HART-4I / PLX51-HART-4O
♦
HART Input/Output
Setup
Multidrop Field Devices
User Manual
ProSoft Technology, Inc.
Page 34 of 127
3.5.3 Custom
When using the
Custom
Action the user will need to create the custom HART
command to send. To create a new Custom Command item, select the Build button.
The HART Custom Builder will open.
Important:
When adding a custom HART command, the user will need to also have the same device as
either the main device or configured as one of the multidrop devices.
EtherNet/IP
The required HART command will need to be entered into the builder window as
shown below.
Figure 3.20 – Custom HART Command Builder Mapping (for EtherNet/IP
The data to be send and returned will be exchanged with the Logix tag specified. The
Logix Tag UDT will have all the required parameters to trigger the message
execution, provide the source data, and update the returned data.
Figure 3.21 – Custom HART Command Logix Tag (for EtherNet/IP)
Important:
It is important to ensure that the selected Logix tag type matches that of the expected HART
custom command UDT type. Failing to do so can cause unexpected results.