Transceiver Rf Link And Output State Wiring Options; I/O Expansion Module Wiring Examples; Figure 11 Transceiver Block Diagram - Siemens WiPS-200 Series Installation Manual

IGWiPS200-1

Transceiver RF Link and Output State Wiring Options

This section describes the transceiver RF link status relay and the analog output and digital output wiring options. A
block diagram of the transceiver is shown in Figure 11.

Figure 11 Transceiver Block Diagram

Transceiver RF Link
The RF Link relay has Form A, Normally Open (NO) contacts that close when the transceiver establishes an RF link
with another transceiver. The contacts are often used to turn on a STATUS light, provide a digital status signal to a
controller or PLC, or mechanically disconnect an analog or digital signal, as described below, when an RF link is
lost. Refer to the Specifications section for relay contact rating.
For additional information about RF Link response, refer to Transceiver and I/O Expansion Module Status LEDs on
page 30.
Transceiver Analog and Digital Output Last State Selection
The default state upon loss of RF link for the analog and digital outputs is MAINTAIN LAST STATE. Either an
analog output or a digital output may be wired in series with the RF Link contact to provide a FAULT OFF status
when an RF link is lost. Refer to the Specifications section for relay contact rating.

I/O Expansion Module Wiring Examples

I/O module wiring connections are shown in Figures 12 through 18 on the following pages.
22 May 2007