Devicenet Communications; Poll Data - GE MM300 Manual
Motor management system/low voltage motor protection and control
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Also See for MM300:
- Instruction manual (198 pages) ,
- Quick start manual (77 pages) ,
- Installation recommendations (21 pages)
Table of Contents
CHAPTER 4: FIELDBUS INTERFACE
DeviceNet Communications
Poll data
MM300 MOTOR MANAGEMENT SYSTEM – COMMUNICATIONS GUIDE
4.
Considering the scanner's limited memory for storage of the ADR configuration, more
than one scanner will be required if there are many MM300 relays in the DeviceNet
network.
The MM300 profile is an extension of the Communications Adapter Device Profile (0xC0). It
is a group 2 only server. The MAC ID and baud rate are programmable through the
EnerVista MM300 Setup software and the Graphical Control Panel. The MM300 supports
the following DeviceNet object classes.
CLASS
01H
02H
03H
05H
A0H
B1H
B0H
A1H
A2H
The MM300 supports poll and explicit messaging types.
The Poll function consumes one byte of control data (described under User Object Class
B1h, Instance 01h, Attribute 01h) and produces 38 bytes of status and metering data as
described in User Object Class A0h, Instance 01h, Attribute 01h.
USINT, UINT, UDINT and DINT, stated in this document, stand for the following data types :
USINT = Unsigned integer byte
UINT = Unsigned integer word
UDINT = Unsigned integer double word
DINT = Signed integer double word
The Polling function consumes one byte of control data and produces 38 bytes of status
and metering data as described in User Object Class A0h, Instance 01h, Attribute 01h. The
control data format is as follows:
Table 4-11: Data Value, polled output data
VALUE
Dec
Hex
1
0x01
2
0x02
3
0x03
4
0x04
5
0x05
66
0x42
67
0x43
68
0x44
69
0x45
70
0x46
OBJECT
Identify
Message Router
DeviceNet
Connection
Generic Data - Polling/Explicit
Explicit Control Writes
Analog Data - Explicit
Configuration Data - Explicit
Analog Data - Explicit
DESCRIPTION
Reset
Lockout Reset
Stop
Start A
Start B
Clear Last Trip Data Prompt
Reset MWh and Mvarh Meters
Clear Counters
Clear Event Records
Clear Waveform Data
DEVICENET PROTOCOL
4–61
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