CONTENTS
6F8C0845
xvii
1 Overview of the Devicenet Module  . . . . . 1
1.1 Features and System Configuration Examples of 
the 
DeviceNet Module (DN611)  . . . . . . . . . . . . . . . . . . . .  1
1.2 Network Configuration of DeviceNet  . . . . . . . . . . . . . .  3
1.2.1 Network Configuration  . . . . . . . . . . . . . . . . . . . . . . .3
1.2.2 Trunk line/drop line and maximum cable length   . . . 4
1.2.3 Terminator  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.3 Applicable Standards and Trademarks  . . . . . . . . . . . .  7
1.4 Basic Functions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  8
1.4.1 Polling instruction/response . . . . . . . . . . . . . . . . . . .8
1.4.2 Bit strobe instruction/response . . . . . . . . . . . . . . . . .9
1.4.3 Synchronous/asynchronous mode and data 
refresh cycle  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.5 Specifications of the DN611   . . . . . . . . . . . . . . . . . . .  13
1.5.1 Function specifications . . . . . . . . . . . . . . . . . . . . . .13
1.5.2 Number of mounting modules  . . . . . . . . . . . . . . . .14
2 Names and Functions of the Parts of 
the DN611   . . . . . . . . . . . . . . . . . . . . . . . . 17
2.1 External Views, Dimensions, and Names of Parts   . .  17
2.2 Functions of the Parts  . . . . . . . . . . . . . . . . . . . . . . . .  21
3 Preparations for Operation (Hardware)  23
3.1 DN611 Setting Flowchart (Hardware)  . . . . . . . . . . . .  23
3.2 Setting the Switches  . . . . . . . . . . . . . . . . . . . . . . . . .  25
3.2.1 DIP switches for operation mode/
communication rate setting  . . . . . . . . . . . . . . . . . . 25
3.2.2 Rotary switches for node address setting  . . . . . . .27
3.3 Mounting in the Base Unit  . . . . . . . . . . . . . . . . . . . . .  29
3.4 Connection to the Network   . . . . . . . . . . . . . . . . . . . .  30
3.4.1 Connecting DeviceNet cables to network 
connector   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
3.4.2 Connecting network connector to the DN611   . . . .33
3.5 Network Power/Grounding   . . . . . . . . . . . . . . . . . . . .  35
3.5.1 Network power supply method . . . . . . . . . . . . . . . .35
3.5.2 Network power configuration method   . . . . . . . . . .36
3.5.3 Network power unit (24 VDC)   . . . . . . . . . . . . . . . . 42
3.5.4 Network grounding . . . . . . . . . . . . . . . . . . . . . . . . .43
3.5.5 Switching power on and off  . . . . . . . . . . . . . . . . . .44
3.6 Network Components  . . . . . . . . . . . . . . . . . . . . . . . .  45