Weidmuller WI-I/O-EX: Wireless I/O Expansion Modules v1.11 Uživatelský manuál stáhnout pdf (Strana 11)

WI-I/O-EX Serial I/O Module User Manual v1.11

WI-IO-EX Manual v1.11 Page 11

You can connect to an WI-GTWY-9-MD1 Module using either MODBUS protocol or E-

Series protocol. E-Series protocol is easier to set up, and we recommend using this

protocol for most applications.

Figure 2-3: Address switches. The address shown is 01.

Connect the RS485 B and A wires to the 4-way connector shown previously in Figure

2-2. An RS485 termination switch is provided. Terminate the last WI-I/O-EX module in

the multi-drop setup as shown in Figure 2-4.

Figure 2-4: RS485 multi-drop connection and termination (only use external

termination for the master if it does not have internal termination).

x10 x1

RS485

termination

switch.

Up = terminate

Down = unterminated

Master

WI-I/O-

Termination

switch up

(terminated)

120

Ω

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 54 55

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Weidmuller WI-I/O-EX: Wireless I/O Expansion Modules v1.11 Uživatelský manuál Strana 11