Remote i/o communications – Rockwell Automation 2705 REDIPANEL KEYPAD MODULE USER MANUAL User Manual

Page 11

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Chapter 2
Product Introduction

2–4

2) A combination of ASCII and numeric data. Up to 8 characters of ASCII

data are displayed on the left side of the display and 8 digits of numeric
data are displayed on the right side of the display. This allows you to
label numeric data with text.

The ASCII data can consist of either the first 8 characters of a stored
message or 8 characters sent from the PLC controller. The 8 digits of
numeric data can represent either operator input from the keypad or 8
characters from the PLC controller.

The module can support three data type formats for numeric data: binary,
BCD, and integer. The data type is selected via a DIP switch on the module.
Binary and BCD modes apply to the PLC–2 family of processors. Data type
formats for the PLC–3 and PLC–5 controllers can be either binary, BCD or
integer. These data type selections apply only to numeric values that are
displayed.

2705 RediPANEL Modules combine the functions of standard panel
devices with the capabilities of a Remote I/O Rack - all in one
package.

2705 RediPANEL Modules connect to remote I/O scanners and sub–scanners
just like remote I/O racks. This replaces large wire bundles with a single
twin–axial cable that connects the module to the programmable controller.
Up to 16 separate modules can be located on a single cable up to 10,000 feet
away from the PLC.

The modules are addressed through DIP switch settings, in the same manner
as remote I/O racks. Additional DIP switches allow you to select the
following features:

Handshake - Holds an input signal ON until the programmable controller
recognizes it.

Keyswitch - Enables the terminal block for the security lockout
keyswitch.

Data Format - Two DIP switches are used to select either binary, BCD or
integer data types.

Stored Message Display - When enabled determines whether to display
ASCII messages from the PLC or messages stored in the module’s
EEPROM.

Split Display - Enables the split display feature.

Remote I/O Communications

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