Se nti
nel C X T
Sentinel CXT Instruction Manual
Rev. 1.7
Page 45 of 49
This value can be changed by performing a swipe:
O vertheEN T ER m arkerandthensw iping
O verthem arkersoftheupordow narrow s.
Anothersw ipeovertheEN T ER m arkerw illsavetheselectedvalue.
11.2.5 M odule U pda te Inte rva l
The AO4 outputs and battery life readings from the wireless radio modules on the CXT are updated
periodically. This menu setting controls the rate at which these updates occur. The default rate is 60
seconds.
This value can be changed by performing a swipe:
O vertheEN T ER m arkerandthensw iping
O verthem arkersoftheupordow narrow s.
Anothersw ipeovertheEN T ER m arkerw illsavetheselectedvalue.
11.2.6 D A 4Em ula ti
on
The CXT Controller can be used as a satellite controller for another Detcon controller (X40, CXT, or
MCX-32), a DCS, or a PLC. The DA4 Emulation mode can only be used when four or less sensors (wired
or wireless) are attached. In this mode, the CXT acts as a stand-alone controller and processes the alarms
for the sensors connected to it. In other words, if one of the sensors connected to the CXT goes into alarm,
the strobe and/or horn of the CXT will be activated. It will also activate any alarm stations or alarm bars
connected to it.
In DA4 Emulation mode, the output of the Modbus slave port on the CXT is formatted to emulate that of
the Detcon DA4 module. This allows the CXT controller to act as a stand-alone controller, but also relay its
concentration readings to another Detcon controller, or a higher level PLC or DCS. In this mode, the CXT
controller appears as a DA4 module to the higher level controller.
Upon entering this menu, the LCD will display:
D A 4EM U L A T O R :
###
A swipe over:
T hem arkersoftheupordow narrow sw illchangethevaluefrom O FFtoO N andviceversa
A sw ipeovertheenterm arkerw illsavethevalueandreturntotheU tility m enu
If the CXT controller is being used as a satellite controller for an MCX-32 then the Modbus address needs
to be set in the range of 40h – 4Fh. If it is used with an X40 or another CXT controller, then the address
should be set to 01h – 32h. See Section 11.2.3 for more information on setting the Modbus address of the
CXT controller.
N O T E
When DA4 Emulation mode is enabled, the format of the Modbus registers does not
conform to the chart shown in Section 7.1.
