beautypg.com

7 self-diagnostic functions, 8 hart specific functions, 1 test output, simulation, and squawk – Yokogawa ADMAG AXR User Manual

Page 123: Self-diagnostic functions -4, Hart specific functions -4 9.8.1, Test output, simulation, and squawk -4

background image

<9. OPERATION VIA HART CONFIGURATION TOOL (HART 7)>

9-4

IM 01E30D01-01EN

9.7 Self-diagnostic Functions

The HART configuration tool can be used to run

self-diagnostics on a device and check for incorrect

data settings.
(1) Using DD and DTM
The

Self test and Status commands are available

for self-diagnostics. When

Self test is run, the

display unit shows an error code and alarm

message if the device detects any illegal parameter

settings or functional faults.

• Procedure to call up the

Self test display

[Root Menu] → Diagnosis/Service → Test/Status →

Self test

If no error is detected, “Self test OK” is displayed on

the configuration tool.

If the specific diagnostic item is known for the

check, you can directly call up the item by using the

Status command.

The status is categorized from 1 to 7. For details,

refer to the table at the end of 9.9.

Show an example below to confirm the status of

Status group 1.

Procedure to call up the Status display

[Root Menu] → Diagnosis/Service → Test/Status →

Status → Status group 1

If no error is detected, “Off” is displayed on the

configuration tool.

If there is an error, “On” is displayed on the

configuration tool, and a countermeasure for that

error is necessary.

Example of display: Span > 10 m/s

On

Span < 0.3 m/s

Off

TTL > 10000 p/s

Off

TTL < 0.0001 p/s

Off

4-20 Lmt Err

Off

9.8 HART Specific Functions

9.8.1 Test Output, Simulation, and Squawk

NOTE

Fixed current output, Flow Simulation Mode,

and Device Variable Simulation Function

continue for a given holding time, then is

released automatically. Even if the HART

configuration tool power supply is turned off or

the communication cable is disconnected, the

test output will continue for that time.

The holding time can be selected from 10 min,

30 min*, 60 min, 3 hour, 6 hour or 12 hour.

*: Default value.
• Procedure to call up the display

DD

DTM

[Root Menu] → Diagnosis/

Service → Test → Test Time

(1) Fixed current output
This feature can be used to output a fixed current

for loop checks.

Call up the test output parameter (Loop test) and

select the output signal.

• Procedure to call up the display

DD

DTM

[Root Menu] → Diagnosis/Service

→ Test → Loop test →

Display Item

Contents

4mA

Output a 4mA DC signal

20mA

Output a 20mA DC signal

Other

Set a desired output signal value

End

Exit

(2) Device Variable Simulation Function
Using the simulation function, the output signal can

be confirmed by setting any value and status to the

selected device variable.

Call up the parameter and follow the message

shown.

After completing the step 5, the simulation starts.

The indicator shows output and warning (93: Dev

Sim Wng).