Model CXT-IR
CXT-IR Instruction Manual
Rev. 2.1
Page 29 of 48
3.4.9
Alarm Settings
The Alarm Settings are not used during normal operation of the unit at this time. These settings should be
ignored and bypassed.
The menu item appears as: “
Alarm Settings
”. At the conclusion of the text scroll the “
”prompt (“
” for
PGM2 or “
” for PGM1) will appear, continue to hold the magnet over PGM1 or PGM2 for an additional 3-4
seconds to move to either the next or prior menu selection . If there is no magnet activity while the menu item
text is scrolling (typically 4 repeated text scrolls), the ITM will automatically revert to Normal Operation.
3.4.10
Set Modbus ID
Detcon CXT sensor can be polled serially via Modbus™ RTU. Refer to Section 4.0 for details on using the
Modbus™ output feature.
Set Modbus ID
is used to set the Modbus™ address of the unit. It is adjustable from 01 to 256 in hexadecimal
format (01-FF hex). Each sensor must have a unique Modbus address to operate correctly on the network. The
current serial ID can be viewed in View Sensor Status.
The menu item appears as: “
Set Serial ID
”.
From the “
Set Modbus ID”
text scroll, hold the programming magnet over PGM1 or PGM2 until the “
” prompt
appears and continue to hold the magnet in place for an additional 3-4 seconds (until the display starts to scroll
“
Set ID
”). The display will then switch to “
XX
” (where XX is the current ID address). Swipe the magnet
momentarily over PGM2 to increase or PGM1 to decrease the hexadecimal number until the desired ID is
displayed. Hold the magnet over PGM2 for 3-4 seconds to accept the new value. The display will scroll “ID
Saved”, and revert to “
Set Modbus ID
” text scroll.
Move to another menu item by executing a momentary hold, or, return to Normal Operation via automatic
timeout of about 15 seconds (the display will scroll “
Set Serial ID
” 5 times and then return to Normal
Operation).
3.5
Fault Diagnostic/Failsafe Feature
If the ITM should incur a fault, the Global Fault bit will be set on the Modbus™ output. This can occur if the
ITM detects a problem with the sensor, detects that there is no sensor connected, if the ITM has an internal fault,
or other fault condition. The Global Fault bit will be set on the Modbus™ output until the problem is resolved.
The display will show the Fault when a magnetic programming tool is swiped across either PGM1 or PGM2.
The error codes are defined in Section 6 Troubleshooting Guide.
