Service and troubleshooting
EST3 Installation and Service Manual 8.57
Communicating list
The Communicating List displays a list of all Signature devices
seen by the Signature controller module.
Using the chain lists
An element in the displayed chain caused the map fault.
Examine the chain and look for gaps within the short address or
serial number lists of a chain or sub-chain.
• Gaps in the list indicate areas that were not successfully
mapped. A gap within the chain does not mean that the
missing device has a problem, only that that device was not
successfully mapped.
• Compare the Chain and Device response lists. All the
devices on the Device Response list should also appear on
the Chain Response list.
• Look for duplicate short addresses or serial numbers on the
same list.
Failure of a device to successfully map may be the result of a
problem with another device, or wiring in a chain or sub-chain
not directly connected to the unmapped device. Although the
missing or duplicate devices are not always the cause of map
failure, good troubleshooting technique suggests that these
devices be examined for defects, wiring errors, and duplicate
entries in the SDU program, etc.
Displaying message counters
During normal operation, the Signature controller module issues
numerous communication messages to the Signature devices on
its SDCs. The message counters indicate how many times a
communication message has been issued and the number of
successful return messages.
To display the message counters, click the Message Counters
tab.
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