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Contents
1. Overview of The DeviceNet Module ..................................................................19
1.1 Features and System Configuration Examples of the DeviceNet Module (DN211)19
1.2 Network Configuration of DeviceNet..................................................................21
1.2.1 The Network Configuration.......................................................................21
1.2.2 Trunk Line/Drop Line and Maximum Cable Length...................................22
1.2.3 The Terminal Resistor..............................................................................24
1.3 Conformity Specification and Trademarks.........................................................25
1.4 The Basic Functions...........................................................................................26
1.4.1 The Polling Instruction/Response Mode...................................................26
1.4.2 The Bit Strobe Instruction/Response Mode..............................................27
1.4.3 Synchronization/Asynchronous Mode and Data Update Cycle .................28
1.5 The DN211 Specification ....................................................................................30
1.5.1 The Function Specification.......................................................................30
1.5.2 Number of Mounting Modules...................................................................31
2. Names and Functions of DN211 Parts .............................................................33
2.1 Outer Dimensions and Sizes..............................................................................33
2.2 Names of DN211 Parts........................................................................................34
2.3 Functions of DN211 Parts....................................................................................36
3. Preparation for Operation (hardware)...............................................................38
3.1 DN211 Setting Flowchart (hardware)..................................................................38
3.2 Switch Setting....................................................................................................39
3.2.1 DIP Switch for Setting the Operation Mode/Communication Rate.............39
3.2.2 Rotary Switch for Node Address Setting...................................................41
3.3 Mounting in the Base Unit..................................................................................42
3.4 Connection with the Network.............................................................................43
3.4.1 Connecting DeviceNet Cables to Network Side Connectors.....................44
3.4.2 Connecting the Network Side Connector to the DN211............................45
3.5 The Network Power/Grounding..........................................................................47
3.5.1 The Network Power Mechanism................................................................47
3.5.2 How to Configure Network Power Units.....................................................48
3.5.3 The Network Power Unit (24 Vdc).............................................................54
3.5.4 The Network Grounding ...........................................................................55
3.5.5 Procedure for Switching-ON/Shutting-OFF the Power..............................56
3.6 The Network Components.................................................................................57
4. How to Handle Your DN211 (software).............................................................60
4.1 Configuration of the DN211 Communication Memory.........................................61
4.2 The Input/Output Data Area................................................................................62
4.3 The RAS Information Area .................................................................................66