Honeywell Searchpoint Optima Plus Operating Instructions Manual page 70

MAN0905_Issue 7_07/17
Unit fails to respond to SHC1
Handheld Interrogator
Unit fails to respond to HART
communications
14. Problem Solving
Incorrect connection (may display
Comms Error 100)
Incorrect software
Incorrect mode (may display
Comms Error 99)
Battery failed
Interference from HART
communication
HART option not fitted
® ®
Incorrect Device Description file
Problem with receiving the
4 – 20 mA signal
Unit is in FAULT condition and the
output is less than 1 mA
HART host is polling for a value
®
that is not set
Searchpoint Optima Plus with optional HART
1. Check that the SHC1 Handheld Interrogator is
correctly plugged into the DVC100 or that the SHC
Protection device is connected correctly (see Use of
the SHC1 Handheld Interrogator).
1. Searchpoint Optima Plus only works with SHC1
Handheld Interrogator software version 3v0 and above.
Check software version.
2. If incorrect, contact Honeywell Analytics for the
latest version of SHC1 Handheld Interrogator software.
1. Switch on the SHC1 Handheld Interrogator and
check the display. It should show Optima+ (not Optima
or Excel).
2. If incorrect, change the operating mode to Optima+
(see Use of the SHC1 Handheld Interrogator).
1. Check the battery in the SHC1 Handheld
Interrogator.
2. If necessary, replace the battery (see Use of the
SHC1 Handheld Interrogator).
The HART communication takes precedence over the
® ®
RS485 communication used by the SHC1 Handheld
Interrogator. If the Searchpoint Optima Plus is being
polled simultaneously by a HART
communication errors may be experienced.
1. Check that the unit has the optional HART
communications fitted (part number ends in H)
1. Check that the correct Device Description file is
loaded and selected.
1. Check cables and connections to the unit, especially
the 4-20 mA loop connections.
2. Check the 4 – 20 mA loop for noise
1. HART communications will not function when the
®
output current is less than 1 mA.
2. Configure the unit to output 1 mA when in Fault
(see Commissioning, Configure HART
during Fault)
Note: It may be necessary to re-cycle the
power to the unit, and change the setting
during the 60 s warm up period while the unit
is in Inhibit.
1. HART hosts typically poll Device Address, Device
®
Tag, Transmitter ID or Unique Device ID to locate a field
device.
2. Change the setting to use Device Address (this is
always set in the unit).
70
output
®
Operating Instructions
2108M0550
host, temporary
®
®
Operation
®