How to re-allocate a loop circuit
It is possible to selectively commence the process of address
allocation on a loop by loop basis.
¨
Press the Menu On/Off button and then [Test/Eng] ->
[UserCode] ->type your password if one is set up and
then select [Loop] ->[Allocate], now enter the CARD
number n to power up loop circuit n and now select
[Enter].
How addresses are allocated to devices
Each device connected to a loop circuit is allocated a software
address on a sequential lowest unused value basis.
¨
The allocation of addresses start from one End of a
loop circuit in a numerical order. If both ends of the
loop are connected then the allocation of addresses
start from End1. On reaching a T-breaker the spur
circuit off is allocated addresses. On completion the
process continues along the main loop.
"
The new map is checked against the last map
on the NVM, if found to be different then a warning
indication is given.
Possible allocation faults
¨
The device with a hardware fault may have its LED lit.
Allocation : HW Fault Card x number y
Loop z
Allocation : Tx Fault Card x number y
Loop z
Allocation : Double Allocated Card x
number y Loop z
Allocation : Map Error at Card x number
y Loop z
¨
An allocation fault that has been rectified will not be
recognised until after re-allocation of the loop.
¨
A loop with allocation faults will not be able to
distinguish between a point type sensor and a call
point.
¨
When a short circuit fault is found, the loop
re-allocates to the device before the short circuit. The
device loop breaker remains open and the device LED
is lit.
During start up
¨
A loop is started after allocation. Each device is set up
to start operating normally based on its type, when
analogue channels are read.
Typical starter fault
ASCII Device is Faulty, number X Loop Y
Loop circuit 1 End 2
&
Power-down the loop before making any
changes to the wiring.
¨
Disconnect end 1 of loop 1 and connect the loop cable
End-2 and power up to reallocate the loop.
¨
On completion of this test, power down the loop and
connect both ends of the loop. Repeat the test on the
other loops if fitted.
Generic Commissioning instructions
42 4188-856_i2_12/06_Generic Vigilon (Compact + VA) Comms.
Address allocation
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