Datalogic Scanning DS2400 RS485 Half-Duplex Interface

DS2400 DATALOGIC

2.12 - Installation

DS2400

TX485+

TX485-

RX485+

RX485

RX485-

5TX485

7SGND SGND

USER INTERFACE

Figure 2.14 - RS485 full-duplex connections

RS485 Half-Duplex Interface

The RS485 half-duplex (3 wires + shield) interface is used for polled

communication protocols.

It can be used in a master/slave layout or for Multidrop connections with a

Datalogic Multiplexer, (see par. 2.6.4 and 2.6.5).

The connector pinout follows:

Pin Name Function

2 RTX485+ RS485 transmitted/received data +

4 RTX485- RS485 tr ansmitted/received data -

7 SGND Signal Ground

RTX485 +

RTX485 -

RTX485 +

RTX485 -

7SGND

MULTIPLEXER

RS485REF

DS2400

Figure 2.15 - RS485 half-duplex connections

This interface is forced by software when the protocol selected is MUX32

protocol.

In a Multiplexer layout or for slaves, the Multidrop address must also be set

via serial channel by the WinHost utility or by ESC sequences.

Contents

Main Page Page CONTENTS Page GUIDE TO INSTALLATION NOTE DS2400 General View SAFETY PRECAUTIONS LASER SAFETY Standard Regulations Beam Shutter WARNING POWER SUPPLY 1 GENERAL FEATURES 1.1 INTRODUCTION 1.2 DESCRIPTION Page 1.3 AVAILABLE MODELS DS2400 - X X X X 1.4 ACCESSORIES 1.5 GFC-2100 ACCESSORY INSTALLATION CAUTION 2 INSTALLATION 2.2 MECHANICAL INSTALLATION 2.3 JUNCTION BOX INSTALLATION 2.3.1 Junction Box Mounting mm inch Page 2.3.2 Junction Box Electrical Connections J. Box Pinout for DS2400 Pin Name Main interface signals see table below To allow connection of an NEC Class 2 Power Unit, use a correct female plu g adapter. Page 2.4 ELECTRICAL CONNECTIONS 2.4.1 Power Supply 2.4.2 Main Serial Interface RS232 Interface RS485 Full-Duplex Interface RS485 Half-Duplex Interface 20 mA Current Loop Interface (INT-22 Accessory Only) 2.4.3 Auxiliary RS232 Interface 2.4.4 Inputs DS2400 DATALOGIC EXTERNAL TRIGGER DS2400 EXTERNAL TRIGGER 2.16 - Installation DS2400 2.4.5 Outputs These outputs are both level or pulse configurable. 2.5 POSITIONING Page 2.6 TYPICAL LAYOUTS 2.6.1 Point-to-Point 2.6.2 Pass Through 2.6.3 RS232 Master/Slave Host 2.6.4 RS485 Master/Slave Host NOTE 2.6.5 Multiplexer Page 3 READING FEATURES 3.1 STEP-LADDER MODE 3.2 PICKET-FENCE MODE 3.3 PERFORMANCE 3.3.1 Raster 3.4 READING DIAGRAMS DS2400-1XXX Code Resolution* * Parameters selectable in WinHost. Code Reading Condition* Scanning Speed* DS2400-2XXX Code Resolution* * Parameters selectable in WinHost. Code Reading Condition* Scanning Speed* Page 4 MAINTENANCE Page 5 TECHNICAL FEATURES (17 inch) (23.5 inch) (10 mils) (14 mils) If the reader is used in high temperature environments (over 35 C), use of the Beam-shutter is advised (see the WinHost configuration program)