Rockwell-automation 1771-IL INSTL.INSTR.ISOL ANALOG INPUT Uživatelský manuál stáhnout pdf (Strana 10)

Isolated Analog Input Module10

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If a write block of with all zeroes is sent to the module, the default

selections will be:

• 1 to 5V dc or 4 to 20mA (depends on voltage/current selection

jumper setting)

• BCD data format

• no real time sampling (RTS)

• no digital filter

• no scaling

• no alarms

The front panel of the isolated analog input module contains a green

RUN indicator and a red FAULT indicator. At power-up, the module

momentarily turns on both indicators as a lamp test, then checks for:

• correct RAM operation

• EPROM operation

• EEPROM operation

• a valid write block transfer with configuration data

If there is no fault, the red indicator turns off.

The green indicator comes on when the module is powered. It will

flash until the module is programmed. If a fault is found initially or

occurs later, the red fault indicator lights. The module also reports

status and specific faults (if they occur) in every transfer of data

(BTR) to the PC processor. Monitor the green and red indicators and

status bits in word 1 of the BTR file when troubleshooting your

module.

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Rockwell-automation 1771-IL INSTL.INSTR.ISOL ANALOG INPUT Uživatelský manuál Strana 10