Chapter 7: Service and troubleshooting
214 EST3X Technical Reference Manual
3. Open the 3-SDU project, click Tools on the menu bar, select Signature
Series, and then click Status / Diagnostics.
4. From the Signature Series Status / Diagnostics window, set the
communication criteria.
If using an RS-232 connection, the suggested baud rate is 19200.
5. From the Cabinet list, select the appropriate cabinet.
6. From the Loop Controller list, select the appropriate loop controller module.
7. From the Delay list, set the interval at which diagnostic updates will be
received.
8. Click Connect.
9. Click each tab to view the diagnostic results.
Signature Series loop diagnostics sequence
Table 64 lists the suggested SDU diagnostics sequence for isolating problems on
a Signature data loop and with individual devices.
Table 64: Suggested Signature Series loop diagnostics sequence
ata loop faults, go to: For device faults, go to:
Mapping Errors tab
Device Chains tab
Message Counters tab
1. Device Troubles tab
2. Trouble Tables tab
Mapping errors diagnostics
Mapping errors prevent the system from successfully generating a Signature
data loop map.
Click the Mapping Errors tab to view information as to why the Signature loop
controller module failed to successfully map the devices on the signaling line
circuit. Press F1 to open the Help topic, which provides instructions, descriptions,
and troubleshooting tips for the information provided. Refer to Table 65 for
suggested corrective actions.
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