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Section 14: Troubleshooting
January 2016, Rev. 1
Section 14:
14.1
Communication Issues
Emerson HART CAM16/216 is equipped with 2 LEDs - D5 and D6, indicators for troubleshooting
communication issues. Refer to the table below to verify proper installation and operation of
CAM16/216.
Table 44.
Issue
Normal Operation
(Communicating)
Normal Operation
(Standby)
Bad ACM
communication
Bad HART
communication
80
Troubleshooting
Known Communication Issues
Description
D6 yellow blinking indicates good
communication between CAM16/216
Board and Actuator, whereas D5 red
blinking indicates good communication
between HART host and
CAM16/216 Board
D6 (yellow) indicates communication
between CAM16/216 Board and Actuator.
D5 (red) indicates communication
between HART host and CAM16/216
Board, in Idle condition if not
communicating with HART host D5 will be
off and D6 will be blinking.
When actuator is communicating with
HART master both LEDs would
be blinking.
D6 LED is not flashing and is continuously
ON or OFF.
D5 LED is not flashing and is continuously
ON or OFF.
CAM216/16 IOM
Doc. Number: ECM-402-0116
Troubleshooting
No action needed
If device is in good status, a
command to read parameters can
be sent to verify that D5 and D6
begin flashing.
If successful, device is functioning
properly.
When D6 is not flashing; there
is bad communication with the
actuator. Verify that the CAM is
properly aligned with the ACM
connector and all connections are
properly secured
Verify connections as well as
polarity of connections of J4 in
CAM16 and J6 in CAM216.
Verify that proper current and
voltage is applied to the
HART segment.
Troubleshooting
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