Distech Controls ECLYPSE Installation Manual page 20

Figure 27: Modbus RTU Communications Wiring
If inserting multiple wires in the terminals, ensure to properly twist wires together prior to inserting them into the terminal connectors.
The RS-485 port must be configured in EC- gfx Program prior to use. Modbus devices are integrated into EC- gfx Program using the EC- gfx Program Mod-
bus device block.
Modbus TCP Communications Wiring
Connect Modbus TCP devices to the same IP subnet the controller is using. This connection can be made by connecting the Modbus TCP device to an
Ethernet port on the ECY-CSC with a Cat5e network cable for example (see
ECLYPSE User Guide.
The RS-485 port must be configured in EC- gfx Program prior to use. Modbus devices are integrated into EC- gfx Program using the EC- gfx Program Mod-
bus device block.
M-Bus Communications Wiring
M-Bus communications are made by connecting meters directly in an M-Bus port.
The Connected System Controller integrates one M-Bus port when equipped with one ECY-MBUS extension module.
The M-Bus port must be configured in EC- gfx Program prior to use. M-Bus meters are integrated into EC- gfx Program using the M-Bus device block.
Maximum M-Bus Device Wiring Length
The following information provides wiring limitations for M-Bus devices. The wiring length provided below was tested as a worst-case scenario with all
meters being located at the end of the bus. If meters are more evenly spaced along the bus, then the maximum wiring length can possibly be increased.
Testing Conditions:
Current per slave/meter
Max ∆V accepted on the bus
Cable capacity
HD15 Connection:
M-Bus Meters
10
20
30
40
50
60
Table 3: Maximum Wiring Length from the Controller to the Last M-Bus Meter on HD15 connection
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Server
AWG 15
300, 2400, 9600 Bps
5000 m (16404 ft)
2500 m (8282 ft)
1500 m (4921 ft)
1100 m (3608 ft)
850 m (2788 ft)
650 m (2132 ft)
Communications Wiring [pg. 16]). For more connection options, refer to the
1.5 mA
2 V
110 nf/km
AWG 22
300, 2400, 9600 Bps
1200 m (3937 ft)
550 m (1804 ft)
350 m (1148 ft)
250 m (820 ft)
200 m (656 ft)
150 m (492 ft)