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Epsilon Ei DeviceNet Drive Reference Manual
To send explicit messages, the Epsilon Ei-DN drive should be configured and successfully
connected to the DeviceNet system as a unique node. This chapter will present examples that
should be used as a tutorial.
Equipment
Ei-DN DeviceNet Digital Drive
NT 207 Motor
Allen Bradley SLC 500 PLC™, 1747-L542 (4 Slot Chassis), P1 Power Supply, 1747 SDN
Scanner Card (slot three)
1770 KFD RS 232 to DeviceNet Interface module with 96881501 RS232 cable
DeviceNet thin cable
RS Logix 500 Industrial Programming Software (PLC)
Ei DeviceNet Drive Parameter Tables from the "Drive Parameters" chapter of this manual
How to Send Explicit Messages
An Explicit Message is compiled using an integer file (for example N10). Format the message
using the following table.
Message Header
Message Data
Once formatted, use the copy command to transfer it to the M0 file. The copy initiates the
explicit message transfer from the scanner to the Ei DeviceNet drive. The Ei drive response
will be placed into the M1 file by the scanner. Using the scanner message received status flag
(in the example of this chapter the location would be I:3/15), copy the M1 file to an integer
file (N11). Once the message has been copied, the results may be examined from the N11 file.
TXID is set at 0x01 for all of the following examples.
PORT will be set to 0x00 indicating a 1 port network.
Explicit Messaging Quick Start
Integer File N10
N10:0
N10:1
N10:2
N10:3
N10:4
N10:5
N10:6
N10:7
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High Byte
Low Byte
TXID
COMMAND
PORT
SIZE OF FIELD
SERVICE
MacID
CLASS
INSTANCE
ATTRIBUTE
VALUE LOW WORD
VALUE HIGH WORD
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