Installation/De-installation
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D000043188 en d
– E65C – CU-P40, P41, P42 – User Manual
© Gyr
4.5
Commissioning and functional check
The communication unit CU-P4x should be put into operation as follows
(see also section 5 for a detailed description of the LED states):
1.
Check that the GSM LED is not blinking fast. If it is, this means that the
communication unit is not operational. Please refer to section 5.1 to
diagnose the exact cause.
2.
In
GSM standby mode
(established after start-up) check whether the
GSM modem has found a GSM network. The GSM LED blinks every
3 seconds if a GSM network is present. Without a GSM network the
GSM LED is blinking fast.
– If no GSM network has been found, change the position of the
antenna until reception is possible (see section 4.4.2, it may be
necessary to take the antenna outside or place it in another room
and connect it with an extension cable).
– With GSM network, check the reception quality with the help of the
two LEDs RX and TX on the faceplate. At least the RX LED should
be on, preferably both. If this is not the case, a better antenna posi-
tion has to be found (see section 4.4.3) until at least the RX LED
lights.
3.
Make a GSM call to the CU. After termination of this call, the CU
reactivates the GPRS window.
4.
In
GPRS mode
, depending on whether it is fixed IP mode or dynamic
IP mode, the CON LED is either blinking slowly or continuously on.
Reliable operation
Operation without failure is only ensured when the reception level is good
or very good, i.e. when on GSM standby mode (no connection made) at
least the RX LED or both LEDs TX and RX are on.
5.
As a functional check of the modem connection perform a remote
readout of the meter data via the mobile telephone network.
6.
If multiple connections to additional devices are needed, check that they
can also be read.
4.6
Removal/Exchange of communication unit
The communication unit is exchanged or removed from the meter in
reverse order of the installation (see sections 4.2 and 4.3).
