Weidmuller WI-I/O-EX: Wireless I/O Expansion Modules v1.11 Manual do Utilizador descarregar pdf (Página 12)

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

Page 12 February 2010

2.2 Signal Connections

All connections to the module should be SELV only. Normal 110/220/240V mains

supply should not be connected to any input terminal of the module.

2.2.1 Digital Inputs (and Pulsed Inputs)

The WI-I/O-EX-1-S-11 supports 16 digital signals, and the WI-I/O-EX-1-S-12 and WI-

I/O-EX-1-S-13 support 8 digital signals. Additionally, digital inputs DIO1-4 on the WI-

I/O-EX-1-S-11 operate as pulse inputs.

Digital output signals share the same terminals as the Digital input signals, marked DIO1-

8, and DIO1-16 on the WI-I/O-EX-1-S-11 module.

A digital input is activated by connecting to EARTH, either by voltage-free contact or by

a transistor switch. Refer to Figure 2-5:

Figure 2-5: Connection of digital inputs.

Voltage-free contact

Transistor

switch device

V+

V-

DIO1

DIO2

EAR

WI-I/O-EX Module

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Weidmuller WI-I/O-EX: Wireless I/O Expansion Modules v1.11 Manual do Utilizador Página 12