Connecting The Data Line (Modbus Rtu) - Mennekes AMTRON Compact 2.0s 11 Betriebs Und Installationsanleitung

5.7 Connecting the data line (Modbus RTU)
The tasks described in this section may only
be carried out by a qualified electrician.
The product can be connected to an external en-
ergy meter or an energy management system via
Modbus RTU.
MENNEKES recommends using the data lines be-
low:
n With a line length of 40 m, a network cable
(CAT-6 / CAT-7) can be used. It can be useful to
use a network cable so that your installation is
ready to accommodate future developments.
Not all wires are required.
n PROFIBUS cable
n For installation in the ground: Siemens
PROFIBUS line, underground cable
6XV1830-3FH10 (manufacturer EAN
4019169400428)
n For installation without mechanical stress:
Siemens PROFIBUS line 6XV1830-0EH10
(manufacturer EAN 4019169400312)
Data lines must not exceed a length of 100 m.
Connection
A shield clamp and two cable ties are needed to
connect the data line. These are included in the de-
livery contents.
18
Fig. 10: Data line connection [mm]
Attach shield clamp:
u Strip the data line by 8 mm at a length of
115 mm.
u Attach the shield clamp at the stripped point.
u Use a cable tie to fix the shield clamp in place at
the jacket.
Connect the data line:
u Strip the data line.
u Strip the conductors 10 mm.
u Connect the protective shield to terminal 9
(XG2).
u Connect the twisted-pair cables to terminals 7
and 8 (XG2).
Terminal (XG2) Connection
7 A
8 B
9 GND
u Comply with the connection data.
1 "4 Technical data" [} 11]
u Use a cable tie to fix all wire pairs in place.
u Insulate the used wire pairs (contact guard).