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6.1 Feature of DeviceNet communication function
SJ-DN2 conforms to open field Network DeviceNet and activates as slave function (Group 2 only server).
There are two methods to communicate with the master, one is polled I/O message communication and the
other is explicit message communication. Also SJ-DN2 corresponds to the AC Drive profile.
6.2 Basic DeviceNet specification
The table as below describes the basic DeviceNet specification of this product.
Protocol
Support communication speed
Maximum
connection Node
Support connection
Data length
Type of device
Device profile
List of object for mounting in SJ-DN2 is shown as below.
Name of objects
Identity
Message Router
DeviceNet
Assembly
Connection
Motor Data
Control Supervisor
AC/DC Drive
Inverter parameter
CHAPTER 6
Items
CIP Volume I –Release3.4
CIP Volume III-Release1.5 DeviceNet Adaptation
125kbps(500m)/250kbps(250m)/500kbps(100m)
number
of
64 Nodes (Maximum number of Node for slaves are 63 Nodes)
Explicit Message
Polled Input/Output Message
Explicit Message (Each of Data has different length which are
dependant on data.)
Polled Input/Output Message
Group2 Only Server
(Predefined Master/Slave Connection Set)
AC Drive
Class ID
Instance ID
01
02
03
04
20,21,100
70,71,101
05
40
41
42
100 - 110
DEVICENET COMMUNICATION FUNCTION
1
Information for distinguishing Device type, Serial
number and Vendor ID etc.
1
This Router gives Explicit message to appropriate
object.
1
It controls Physical connection for DeviceNet
It controls Polled I/O Output Message.
It controls Polled I/O Input Message.
1,2
It controls Connection.
1
It controls the motor connected to the inverter.
1
It controls control information of the inverter.
1
It controls operational information of the inverter.
1,2,3
It controls inverter parameter.
See Appendix about details of Inverter parameter.
11
Specification
4 Bytes / 8 Bytes
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