EsiWelma Sensigas EW40, Installation And Operating Manual

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Type / N.
Rev. Data Page Total pages
EW095.605 5 November 2010
75 96
EsiWelma
s.r.l.
Keep pressed
until the "BEEP"
When a field device is deleted, its address becomes available. It is brought up again if the
field device is being replaced with another one of the same type (see command "REPLACE
DEVICE").
After the cancellation operation is completed, press to leave the screen (twice to go
back to the main menu).
10.3 Changing peripheral
The "REPLACE DEVICE" operation is required when replacing a field device (for example if
it is not functioning) with another one of the same type. The replaced field device is
assigned the data (assignments and settings) of the old field device. The operation consists
of five phases:
1. cancel the field device to change via the “
DELETE DEVICE
”
command
2. power down the system
3. remove the field device and replace it with the new one
4. power up the system again
5. from the control unit, input the “REPLACE DEVICE”
command
As regards the deletion phase, proceed as shown in the paragraph above, then select
“REPLACE DEVICE” from the "CONFIGURATION MENU"
Note that the control unit only brings up the addresses of field devices already deleted
beforehand (in the example detector D02). So, press the key indicated by the display screen
and then the one on the field device. Remember that it is possible to replace a field device
and keep the same address only with another field device of the same type and model (i.e.
a CH4 sensor can only be replaced with another CH4 sensor). At the end of the operation, if
D02 was the deleted field device, the screen will become like Fig. 10.16, indicating that
there are no longer any field devices to replace; press to exit the screen.
If the "REPLACE DEVICE" command is activated from the main menu and no field device
has been cancelled, the screen in Fig. 10.17 will appear.
R E P L A C E D E V I C E
T O C O N F I R M
P R E S S - , + ,
S I M U L T A N E O U S L Y
Fig. 10.14
R E P L A C E D E V I C E
S 0 2 R M - - D M - - A M - -
P R E S S
t
5 S E C
S 0 2 G A S C H 4
Fig. 10.15
R E P L A C E D E V I C E
S 0 2 R M - - D M - - A M - -
P R E S S
t
5 S E C
Fig. 10.16
R E P L A C E D E V I C E
N O Y H I N G T O R E P L A C E
A L L I N O R D E R
Fig. 10.17