Measurement-computing PointScan 100 Series rev.1.0 Instrukcja Użytkownika Pobierz pdf (Strona 9)

PointScan/100 User’s Manual

9-12-01

General Information 1-3

DC Power Wiring PointScan/443

PointScan/442 gateways, and user instrumentation loops may be powered from the PointScan/443 power

supply. The PointScan/443 supplies 24 volts DC at a maximum of two amps.

DC Power Wiring (User DC Source)

PointScan/442 gateways, and user instrumentation loops may be powered from a single DC source. The

user DC power source must be between 18 to 30 volts.

Current Requirements

To calculate the current requirements, add the wattage required for the I/O modules in use, then divide the

total wattage by the DC power source voltage. Then add any current needed for user instrumentation loops.

PointScan/100 LEDs

Every PointScan/100 module has a number of LEDs. These LEDs can be useful for system diagnostics.

These LEDs can be observed in the following states:

I/O Module Status LED

On, with a quick “OFF” BLINK [Long Blink](1.9 seconds ON, .1 seconds OFF) - The module is

configured and fully operational, but has not received a valid request from the host for a time longer than

the specified time out period. A communication time out has occurred.

Full ON [On] - The module is configured, fully operational, and has received communication from the host

device before the timeout period expired. This is the desired LED indication during system operation.

HALF BLINK [Long Blink] (1 second ON, 1 second OFF) - The module is not adequately configured and

requires a download from the IO Toolkit program.

Full OFF [Off] - There is no power to the module, or the status LED is being turned off intentionally by

the IO Toolkit during the module loading operation.

Off, with a quick “ON” BLINK [Short Blink] (1.9 seconds OFF, .1 seconds ON ) - The module failed

self-test at initialization. It will not attempt communication and should be replaced.

Status LED Wink Feature

The “Status” LED may be intentionally winked (10 blinks/second) by the IO Toolkit program to visually

identify the module when other modules are present.

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Measurement-computing PointScan 100 Series rev.1.0 Instrukcja Użytkownika Strona 9