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CLASS 3 CONNECTION (explicit messages)
Manually generate the request to be sent to the PLC using the parameters shown in the table
“Manual settings for communication” (see table “PURE DATA” for the output data interface).
Manual settings for communication
Field
Read
Write
Service
0x0E
0x10
Class
0x04
0x04
Instance
0x65
0x64
Attribute
0x03
0x03
Data
NO
Byte array to be written
The data exchanged by the instrument are:
32-BIT RUN/IDLE HEADER
PURE DATA
Output Data
from instrument (reading)
Addresses
input assembly
Output Data
from instrument (reading)
Addresses
input assembly
Ethernet/IP Header*
0x0000-0x0003
Gross weight
0x0000-0x0003 Gross weight
0x0004-0x0007
Net weight
0x0004-0x0007 Net weight
0x0008-0x000B
Exchange register R1
0x0008-0x000B Exchange register R1
0x000C-0x000F
Exchange register R2
0x000C-0x000D Exchange register R2
0x0010-0x0011
Status Register 1
0x000E-0x000F Status Register 1
0x0012-0x0013
Status Register 2
0x0010
Status Register 2
0x0014
Instrument status
0x0011
Instrument status
0x0015
Execution register
0x0012-0x0013 Execution register
0x0016-0x0017
Digital inputs status
0x0014
Digital inputs status
0x0018
Digital outputs status
0x0015
Digital outputs status
0x0019
* registers used by the ETHERNET/IP
scanner
to manage the communication.
Input Data to instrument (writing)
Addresses – output assembly
Command Register
0x0000-0x0001
Digital outputs command
0x0002-0x0003
Exchange register W1
0x0004-0x0007
Exchange register W2
0x0008-0x0009