Page 200
SMV800 Modbus User's Guide
Revision 1.0
Information
Temperature
module ADC
Reference
Failure
The reference
voltage
measurement in
one of the two
Analog to Digital
Converter (ADC)
parts in the
Temperature module
is not operating
correctly. The
process temperature
measurement may
be affected.
Reset the device. If
the problem persists,
replace the
Temperature module.
Bit - 0
120
Temperature
Module
Unreliable
Communication
If there is no proper
communication
between
Communication
Board and
Temperature Sensor
Board (Terminal) or
invalid data on
communication line
due to noise
User can verify the
cable/connector
between
communication and
Temperature sensor
board (Terminal
Board) to ensure that
it is not damaged.
Check for bent pins.If
cable/connector is not
the problem, replace
the Communication
module.If problem still
persists, replace the
Terminal board.
Bit -1
Temperature
module Factory
Calibration
missing
Temperature sensor
module factory
calibration is missing
Return the device for
Factory Calibration
Bit - 2
Temperature
Sensor Over
Temperature
The Process
Temperature input
exceeds the
Temperature Upper
Range Limit
(URL) as determined
by the configured
Sensor Type.
Check the process
temperature. If the
process temperature
exceeds the range of
the current sensor
type, either correct
the process to an in-
range temperature or
switch to a different
sensor type which is
ranged for the
expected process
temperature range.
Bit - 3
Excess
Calibration
Correction
The temperature
calibration correcs on
LRV, URV or both is
in excess.
Perform Reset
Corrects to reset the
User calibration to
factory default. If
required, fllow the
calibration procedure
to repeat the
temperature
calibration.
Bit - 4
User Corrects
Activated
User Corrects
Activated
This is
acknowledgement
status for reset
corrects performed by
user
Bit - 5
Summary of Contents for SMV800
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