Diehl Metering SCYLAR INT 8, Installation And User Manual

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Communication over integrated radio module
Communication has the following specification:
 Unidirectional transmission
 The module sends every 8 ... 256 s (variable, depending on protocol length)
 typical radio transmitting power 10 dBm
≙
10 mW
 Data actuality: online – no time delay between recording readings and data transfer
 The integrated radio module always accesses the current meter counts
 Transmission frequency: 868 MHz or 434 MHz
 Various Diehl Metering GmbH receivers are available for receiving the protocol (e.g. Bluetooth,
GPRS, LAN, …)
 Encrypted protocol: Open Metering
 Reading modes: walk-by, drive-by, fixed network
For difficult radio installations (shielding) and to short distance to the radio receiver also the module
set external radio can be used.
RS-232
 Terminals suitable for a cable with 3 wires of 2.5 mm²
 Protocol: M-Bus
 Transmission speed: 300 or 2400 bauds
 not electrically isolated
The module contains a 3-pole terminal strip with terminals marked 62 (Dat), 63 (Req) and
64 (GND). A special adapter cable is required for connection (order no. 087H0121). The coloured
wires are to be connected as shown:
Fig. H RS-232 module
RS-485
 Terminals suitable for a cable with 4 wires of 2.5 mm²
 Protocol: M-Bus
 Transmission speed: 2400 bauds
 Electrical isolated
The module contains a 4-pole terminal strip with terminals marked “D+”, “D-”, “+12V” and “-12V”. The
module requires an external power supply of 12 V DC ±5 V.
Fig. I RS-485 module
62 = brown
63 = white
64 = green