Rockwell-automation 57RF RFID ICODE Handheld Interface User Manual Manual de usuario descargar pdf (Pagina 29)

Rockwell Automation Publication 57RF-UM001A-EN-P - September 2011 29

Chapter 4

45-Key Pads

In order to provide the functionality of a full-size keyboard with only 45 keys, the

RFID ICODE handheld interface keypad makes use of modifier keys. Units

configured with the 45-key pad utilize five LED indicators (located above the

On/Off switch) to indicate the active state of the keypad modifier keys. Units

with the 45-key pad also have keypad functions to adjust contrast and backlight.

Figure 24 - Standard 45-key Pad

Modifier Keys

The following modifier keys (located on the bottom of a standard keypad) enable

you to access the various functions that can appear on a key. Modifier keys take

effect when first pressed and typically remain in effect until you press another key,

unless it is another modifier key (see the Modifier Key Actions

table on page 30).

Optionally equipped units can use LEDs to indicate the selection of a modifier

key. The Power/Suspend Switch

figure on page 23 provides examples of LEDs.

Figure 25 - 45-Key Pad Modifier Key

• CTRL and ALT Keys—operate in the same manner as on conventional

PCs, except that by default they have a one-time locking action to facilitate

one-handed operation.

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Rockwell-automation 57RF RFID ICODE Handheld Interface User Manual Manual de usuario Pagina 29