27
Logix
®
420 Digital Positioner FCD LGENIM0106-07-AQ – 10/15
flowserve.com
11 HART COMMUNICATION
The Logix 420 series positioners use the HART communication protocol
specified by the HART Communication Foundation.
11.1 ValveSight DTM
Flowserve Corporation has produced a custom Device Type Manager
(DTM) for the Logix 420 digital positioner to support the ValveSight
diagnostics platform.
The DTM contains a high level “Dashboard” view of the system health
and status information. It also contains comprehensive user-friendly
interfaces for control and reporting of alarms, of-line and on-line
diagnostic tests, calibrations and system configurations.
The ValveSight DTM is available from a Flowserve representative or
from www.valvesight.com.
11.2 HART 475 Handheld Communicator
The Logix 420 digital positioner supports and is supported by the HART
475 Handheld Communicator. The Device Description (DD) files can
be obtained from the HART Communication Foundation or from your
Flowserve representative.
11.3 Burst Mode
Burst Mode is available with a handheld device. In the menu of the
handheld, select the Burst Mode feature under the Configuration Menu.
NOTE:
The DTM will not function while the positioner is in Burst Mode.
11.4 Changing HART Versions
The Logix 420 positioner comes standard with the HART 6 communica-
tion protocol. Follow this procedure to change to HART 7.
1. Remove the outer cover.
2. Remove the inner cover by removing the 3 inner cover retaining
screws.
1
CAUTION: Observe precautions for handling electrostatically
sensitive devices.
3. With a clean, non-conductive instrument, change the position
of DIP switch according to Figure 14: HART DIP Switch. After
changing the DIP switch, the positioner will immediately recognize
the new HART communication protocol.
4. Replace the covers.
HART 6
HART 7
1 2
3
4
5
6
7
8
Figure 13: ValveSight DTM Dashboard
Figure 14: HART DIP Switch
HART DIP
Switch
