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Device description
© Gyr
D000043188 en d
– E65C – CU-P40, P41, P42 – User Manual
1
Device description
1.1
Scope of application
The communication unit CU-P4x can be fitted in and removed from the fol-
lowing Gyr meters without opening the calibration seal:
Gyr E650 ZxD300/400x
T
industrial and commercial meters
Gyr E850 ZxQ high-precision meters
Inserted in a CU-adapter CU-ADP2, the communication unit CU-P41 or
CU-P42 can also be used with other meters (e.g. Gyr E650
ZxD300/400x
R
, ZMD100A
R
, ZxB or meters from other manufacturers).
Connection to the meter is made in this case via an interface in the
communication unit (CS, RS232 or RS485).
1.2
Characteristics
The communication unit CU-P4x contains a built-in GSM/GPRS modem
(mobile telephone modem with GPRS service for data transmission in
packet form in GSM networks) and, depending on the version, an RS232-
and a CS interface (CU-P41) or an RS485- and a CS interface (CU-P42).
It is used to supplement the meters listed above.
The GSM/GPRS modem serves to read out or re-parameterise the meters
from a central station via the mobile telephone network with GPRS via the
Internet. It can also be used as a normal GSM modem.
The RS485 and CS interfaces can be used for connecting meter points
over a relatively long distance compared to RS232. The CS interface can
be parameterised as an active or passive interface and thus can be used
as master or slave as required with multiple connections.
If a communication unit CU-P41 or CU-P42 is used externally in a CU-adapter,
one of the existing interfaces of the communication unit is required for connec-
tion to the meter.
1.3
Type designation
The type designation of the communication unit CU-P4x is added to that of
the meter (see meter user manual), but is not shown on the main faceplate
of the meter. It is specified directly on the case of the communication unit
and can be seen through the front door of the meter through an opening on
the tariff faceplate.
The communication unit CU-P4x is available in the following versions:
Type
GSM/GPRS
modem
RS232
RS485
CS+
CU-P40
CU-P41
CU-P42
