Emerson DL8000 - Diagnosing RS-232 Communication Ports

DL8000 Preset Instruction Manual
Revised February-2016 DL8000 Keypad Display E-93
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14/03/12 12:26:02
Use AC Output Ch
Use AC Input Ch
<Config Error >
AC I/p curr Sts
(SEL to toggle Sts)
NONE
NONE
(STOP to End )
If you set Use AC Output ch to NONE and select an available AC
input channel, the program interprets this to mean you have connected
an external AC output to the selected input. The program displays the
message Use Ext. Source and shows only the status of the selected ACI
Input channel.
 14/03/12 12:26:02
Use AC Output Ch
Use AC Input Ch
< Use Ext. Source >
AC I/p curr Sts
NONE
AC ch 1
ON
(STOP to End )
Note: If you use an external source, the program does not display a
SELECT option.
If you set Use AC Output ch to NONE and select an available AC
output channel, the program interprets this to mean you have connected
an external AC output to the external contact. The program displays the
message Check Ext. contact and enables a SELECT key you can use to
toggle the selected AO. The program checks the status of the external
contact according to the status of the toggled AC output.
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14/03/12 12:26:02
Use AC Output Ch
Use AC Input Ch
AC O/p curr Sts
< Check Ext Contact >
(SEL to toggle Sts)
AC ch 7
NONE
OFF
(STOP to End )
E.5.6 Diagnosing RS-232 Communication Ports
Note: The preset must have an installed RS-232 module to diagnose
the RS-232 communications. If no RS-232 module is present,
the system displays a No RS232 Card in system error message.
Hardware/
Wiring
Connect the RX and TX pins of the port you want to test.