Emerson DL8000 - Diagnosing Analog Outputs (AO

DL8000 Preset Instruction Manual
Revised February-2016 DL8000 Keypad Display E-81
If you used an external resource for the DO (the Use DO Ch option is
None), the DI channel status updates according to the external contact.
The system displays the following screen:
 14/03/12 12:26:02
Test DI Ch
Use DO Ch
DI Current Status
<Use Ext. Source
DI ch 1
NONE
OFF
(STOP to End )
The preset continually refreshes the DI status every second.
Affected
TLPs
When you select this test, the system sets certain parameters to specific
values to perform the test (as noted below). Once you complete the test,
the system restores all TLP to the values they had before the test began.
 Put Scanning [101,x,1] into Enabled (1) mode.
 Put Invert Mode [101,X,4] into invert status disabled (0).
 Put Latch Mode [101,X,5] into latch status disabled (0).
 Put Scan time [101,X,13] to 0.005.
 Put Scanning Mode [102,X,2] in to Manual (2).
 Put Momentary Mode [102,X,10] into Momentary disabled (0).
 Put Toggle Mode [102,X,12] into Toggle disabled (0).
 Timed Discrete Output Mode [102,X,13] into TDO disabled (0).
 Manual output [102,X,21]
E.5.3 Diagnosing Analog Outputs (AO)
Note: The preset must have an installed AO module to diagnose the
AO. If no AO module is present, the system displays a No AO
Card in system error message.
Hardware/
Wiring
You can connect an AI channel with the AO channel to be tested, or
connect to an external analog meter. See Figure E–10.
Note: Connect a 250 Ω precision resistor (as shown) if the AI channel
carries a 4–20 mA signal.