
PLX51-HART-4I / PLX51-HART-4O
♦
HART Input/Output
Setup
Multidrop Field Devices
User Manual
ProSoft Technology, Inc.
Page 31 of 127
The Advanced Mapping configuration tab consists of the following parameters:
Table 3.3 – Advanced Diagnostics parameters
Parameter
Description
Action
Diagnostics
When the
Diagnostics
option is selected, the user will be able to configure a
specific HART command that must be sent to the “main” device (usually at the
specified fixed address). The result will then be written to a configured Logix
tag thus allowing the user to extract device specific diagnostics from a field
device.
Multi-Drop
When the
Multidrop
option is selected the module will automatically extract
all the required information from the device at the specified address (see
below), allowing the user to have multiple HART devices on a single HART
channel.
Custom
When the
Custom
option is selected a custom HART message can be build
with data being read from and/or written to the protocol interface. Custom
messages are supported for EtherNet/IP and Modbus TCP. The user will
need to select the HART device short address.
MD
This is the Multidrop Device Index for the specific HART device. There can be
a maximum of 7 devices (0-6) per channel and each Multidrop Device Index
will specify the location where the multidrop data is stored and can be
accessed by the various interface protocols (see the multidrop section for
more details).
Applicable only for
Multi-Drop
Action.
Address
This is the short node address of the HART device on the multidrop channel.
The addresses can be found by using the Scan function in the Device List tab
(see the Diagnostics and Multidrop sections for more details).
Important:
Connecting more than one device with the same short address will cause
communication errors and prevent both devices from being detected during a scan.
Applicable only for
Multi-Drop
or
Custom
Action.
Description
A user description for the device or diagnostic parameter.
Build
This button launches the HART Advanced Diagnostics Builder which is used
to create the HART message required to extract the needed parameter.
(See Advanced Diagnostic Builder below.)
Applicable only for EtherNet/IP interface protocol when using
Diagnostics
Action or EtherNet/IP and Modbus TCP when using
Custom
Action.
Data Type
For Action – Diagnostics
The Logix tag data type required to accept the parameter.
For Action – Multi-Drop
The data type will specify if the UDT to be used must be of the legacy
MVI56Legacy format or the new Multi-Drop format.
Important:
The user will need to ensure that the correct UDT is used for the Logix tag when
using either new or legacy format for Multi-Drop operation.
Applicable only for EtherNet/IP interface protocol.
Logix Tag
The Logix tag name mapped to receive the parameter.
Applicable only for EtherNet/IP interface protocol.
Browse
This button launches the Tag Browser for the configured Logix controller.
Applicable only for EtherNet/IP interface protocol.
3.5.1 Diagnostics