124
469 MOTOR MANAGEMENT RELAY – COMMUNICATIONS GUIDE
DEVICENET PROTOCOL
COMMUNICATIONS GUIDE
DeviceNet Protocol
Overview
The device profile is an extension of the Generic Device Profile (0x00). It is a group 2 only
server. The MAC ID and baud rate are programmable through relay front panel or the
EnerVista 469 Setup software. The polling function produces 10 bytes of data (described in
assembly object Class 04h, Instance 64h, Attribute 03h). The COS\CYC operation produces
4 bytes of data as per Class 04h,Instance 66h, Attribute 03h.
The following master/slave connection objects are supported by the 469 DeviceNet
implementation:
•
Explicit Messaging Connection
•
Poll I/O Connection
•
Change of State or Cyclic I/O Connection
The following objects have been implemented:
Poll Data
The polling data function produces 10 bytes of data as described under Class 04h,
Instance 64h, Attribute 03h.
Change of State (COS)
The COS data is described under Class 4, Instance 66h, Attribute 03h. The following data is
provided
Object
Class
DeviceNet objects
Identity object
01h
Message Router object
02h
DeviceNet object
03h
Assembly object
04h
Connection object
05h
Acknowledge Handler object
2Bh
469 specific objects
I/O Data Input Mapping object
A0h
Parameter Data Input Mapping object
B0h
Table 9: Poll Data
Byte
Name/Description
Units
Default, Min, Max
Format
Code
1, 2 (low, high)
Relay status
---
0, 0, FFFF
F162
3, 4 (low, high)
Input switches and output relay status
---
0, 0, FFFF
F163
5, 6 (low, high)
Motor thermal capacity used
%
0, 0, 100
F1
7 to 10 (low, high)
Time to trip
seconds
-1, -1, 99999
F20
