1.402 NAIS-FP-TxOn-Switch

This page describes the device driver and the device window for the NAIS-FP-TxOn-Switch device. This device controls a NAiS/Matsushita PLC running a program that switches the tx switch if two alarms (e.g. from satellite modems) are active longer than 15 minutes. The PLC recognizes two device alarms and controls one waveguide switch. The driver exclusively works with a PLC programmed in this special way.

Device window pages

The following table shows which device window pages are available with this individual device type. Tool-bar functions not mentioned here are described at the general description of device windows .

• --- Contains the global Enable/Disable switch for the protection.
• --- The faults page.
• --- The device info page.
• --- The maintenance page. The configuration parameters described below are set at this page.

Configuration parameters

At the maintenance page of the device window there are a couple of configuration parameters which must be set to make the software talk to the alarm monitoring input at the PLC.

Remarks

• The device address of a FPx PLC usually is "01" (two digit, the leading zero is mandatory).
• The FPx PLC must be switched to "RUN" mode. It will not work in "PGM" mode.
• The wave guide switch is operated at the I/O terminals 0002/0003 of the PLC. To control the switch position directly you may define a NAIS-FP-Latching-Relay device on these ports.

Variables defined by this device driver