Section 7
Parameter Settings
54
FT742-SM (RS422 & RS485) Sensors
– User Manual
7.4.11 ER: Query or Reset the Error Report
Command
Parameter
ER
Command
Syntax
SET Sensor:
$<listenerID>,ER<reset>*<checksum><cr><lf>
$aa,ERc*hh<cr><lf>
QUERY Sensor:
$<listenerID>,ER?*<checksum><cr><lf>
$aa,ER?*hh<cr><lf>
Sensor output:
$<talkerID>,ER=<error report>*<checksum><cr><lf>
$aa,ER=xxxxxxxxxxxxxxx*hh<cr><lf>
Parameters
<reset>
R
Resets the historical log section of the error report to all 0’s
<error report>
<error report>
Sensor error report string
Examples
Example 1
Query the error report
Message
Comment
$01,ER?*//<cr><lf>
Query error report
$WI,ER=000000000000000*28<cr><lf>
Sensor response
Description
The error report contains information on errors that have occurred during the operation of
the sensor. The output string is always comprised
of 15 ASCII characters (all shown as ‘0’,
ASCII 30(HEX) in the above example).
The first character in the data field represents the current operational status of the sensor.
‘0’ (ASCII 30(HEX)) indicates that the sensor is functioning correctly any other character
indicates that an error condition exists. The status is cleared once the ER command is
executed.
The next 14 locations contain an historical log of the last 14 errors with the most recent
error being recorded in the leftmost position. Each error condition is assigned an ASCII
character. The historical log is stored in Flash and is retained when the power is switched
off or the sensor software reset.
This report can be sent back to the FT factory for analysis if there are problems with the
sensor.
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14
Error Report Locations
Current Status
Most recent
Least recent
Currently the historical error
log is only used for factory
diagnostic purposes.
