11-1
Chapter 11 DeviceNet Master Scanner Module
AS01DNET-A
Table of contents
11.1 Introduction o AS01DNET-A ............................................................ 11-3
11.1.1 Feature ..................................................................................... 11-3
11.1.2 Specifications ............................................................................. 11-3
11.2 Components of AS01DNET-A ........................................................... 11-4
11.2.1 Profile and Dimensions ................................................................ 11-4
11.2.2 Components ............................................................................... 11-5
11.2.3 Mode Toggle（RTU- Master/Slave） ................................................ 11-5
11.2.4 DeviceNet Connector ................................................................... 11-5
11.2.5 Address Switch ........................................................................... 11-6
11.2.6 Function Switch .......................................................................... 11-6
11.2.7 Digital Displayer ......................................................................... 11-6
11.3 DeviceNet Network Communication ................................................ 11-7
11.3.1 Relationship between Transmission Distance and Baud Rate .............. 11-7
11.3.2 DeivceNet Network Topology Structure ........................................... 11-7
11.3.3 Choice and Purpose of a DeviceNet Terminal Resistor ...................... 11-11
11.3.4 DeviceNet Network Supply Power ................................................. 11-12
11.4 Master /Slave Mode ....................................................................... 11-13
11.4.1 Introduction of Master/Slave Mode ............................................... 11-13
11.4.1.1. Scan List, Input Table and Output Table ..................................... 11-13
11.4.2 Installation ............................................................................... 11-14
11.4.2.1. Connecting AS01DNET-A Module to AS series PLC ....................... 11-14
11.4.2.2. Connecting the DeviceNet Communication Connector .................. 11-14
11.4.3 IO Mapping for AS01DNET in AS PLC ............................................ 11-15
11.4.3.1. Data Mapping between Modules and AS PLC ............................... 11-15
11.4.3.2. Tables of Input Mapping and Output Mapping areas ..................... 11-16
11.4.4 Bit-strobe Command .................................................................. 11-17
11.4.4.1. Bit-strobe Work Principle ......................................................... 11-17
11.4.5 Network Node Status Display ....................................................... 11-18
11.4.5.1. Scan-List Node Status Indication .............................................. 11-18
11.4.5.2. Module Status Indication ......................................................... 11-18
11.4.6 Setting the Time for Data Exchange between Master and Slaves ....... 11-18
11.4.7 Application Example ................................................................... 11-19
11.4.7.1. Constructing One DeviceNet Network ........................................ 11-20
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