Pepperl+Fuchs HD2-DM-A, Руководство пользователя

Страница: 12 / 203

2
02
0-
11
12
Advanced Diagnostics
General Description
2 General Description
Overview
Advanced diagnostics provides a set of monitoring tools for FOUNDATION Fieldbus H1 and
PROFIBUS PA that simplify the work with the fieldbus physical layer.
FieldConnex
®
physical layer diagnostics offers the following features:
• The advanced diagnostic module (ADM): It provides comprehensive measurement capa -
bilities for up to 4 segments and is integrated into the FieldConnex
®
Power Hubs.
• The diagnostic gateway (DGW): It connects the ADMs to the process control system
(PCS). Several integration options to the PCS are available.
• Software packages consisting of DTMs and auxiliary software provide use-case-driven
and easy access to the functionality of the advanced diagnostics and alarm integration
with the onsite PCS.
• An optional stand-alone kit can expand the advanced diagnostic features in areas where
no FieldConnex
®
Power Hubs are installed.
• Optional cabinet management I/O functionality for the diagnostic gateway.
These features ensure the best possible quality of the fieldbus physical layer through efficient
working procedures reducing the amount of effort necessary to commission, monitor and trou -
bleshoot segments. Only a very basic understanding of fieldbus is required to operate the diag -
nostic tools as they provide comprehensive information and fieldbus expertise to the user.
The advanced diagnostics offer support for one or all three of the following areas of application
in process plants:
1. Commissioning
After installation is complete and before loop checking commences, the condition of the seg -
ment is checked. A physical layer in good condition is the basis for a successful loop checking
and plant commissioning. The ADM and diagnostic manager check the segment with a few
mouse clicks and simple-to-use automated procedures. The diagnostic manager records com -
prehensive physical layer values in a baseline report and suggests limit values to be stored in
the ADM.
2. Online Monitoring
The ADM compares actual values to the limits set during commissioning, keeping an "extra set
of eyes" on the fieldbus. Warnings indicate early on that a fault has occurred or that the quality
of the installation is degrading. Proactive corrective action is possible preventing unwanted
plant shutdowns.
3. Troubleshooting
Messages in plain language help the maintenance staff to find possible causes for a problem.
Repair work is planned and performed only when necessary. This significantly reduces time to
repair and time spent in the field.
Additional tools for more detailed analysis complete the advanced diagnostics:
• Automated reports in electronic format
• Fieldbus oscilloscope
• Long-term history for monitoring changes
• Storage of configuration and historical data
• Export functions to other spreadsheets or data warehouse