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Publication S177E V2.0 Issue 12/04
8.7.4.3
FCU Address Fault Details
FCU Address Fault
Duplicate Address
Address 10
15 on A & 139 on B
This screen shows details of any address fault present on the loop.
Line 2 shows the type of fault. Possible messages are
Duplicate address
- More than one field unit with the same address
Address too High
- A field unit has an address higher than the set address to scan up to
Zero Address
- A field unit has address zero (not permitted)
Line 3 shows the offending address.
Line 4 shows the position of the offending address or addresses. The above example indicates that a
field unit at address 10 was found at position 15 out of port A and at position 139 out of port B. The
display can show only two positions. If the same address occurs 3 or more times on the loop only the
first two will be shown.
If there is more than one address fault on the loop this display will show the last one found.
The FCU map will always show the complete picture, i.e. every FCU found during loop configuration,
including duplicates, however many FCU there are.
Commands available:
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