Modbus® Tcp; Figure 8 Rs-485 Modbus® Wiring Diagram - RC Systems ViewSmart 1600+ Operation Manual

devices such as relays, lamps or transmitters. Power consumed from these terminals should be considered
when calculating system power consumption. The CPU board is powered via a ribbon cable connected to
the Main I/O.
Communication Port 1 (COM1) and Communication Port 2 (COM 2) are both found on terminal TB3. To
simplify 2-wire daisy chains by providing additional terminals for cable connections, terminals 1 and 5 (2
and 6) are tied together on TB3 as well as terminals 3 and 7 (4 and 8) of COM 1 (COM 2).
3.3.3 Modbus® TCP
A shielded Ethernet Cable should be used to connect the ViewSmart 1600+ to the network as described
below through the Ethernet port on the Main I/O (J4 Ethernet Port).
3.3.3.1 Direct Connection with Crossover Cable or Hub/Switch
If a network is not available, or if it is desired to keep the ViewSmart 1600+ and PC(s) completely separated
from other computers, a simple network can be created.
UM-1097
Revision B
Ribbon Cable to CPU
Figure 8 RS-485 Modbus® Wiring Diagram
Ethernet for
Modbu s TCP
1 3 5 7
9
2 4 6 8
(+) (-)
A B A B Shield
10-30VDC
COM 1
Out
12