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2014-
02
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Commands
7.8
Communication via Ethernet/IP
7.8.1
Data exchange via EtherNet/IP
EtherNet/IP is an open fieldbus standard, which enables data exchange between PLCs, PCs,
control systems, monitoring systems, sensors, and actuators.
Visit the ODVA website for information on the EtherNet/IP: www.odva.org.
Performance spectrum
■
Implicit message
■
Explicit message
■
PCCC
PLC settings for implicit communication
Configure the following parameters in addition to the IP address:
The lower limit of the RPI is 10 ms.
Data/Command transmission
The data is exchanged by commands that the IDENTControl Compact recognizes. Unlike
commands that are used for TCP/IP and MODBUS protocols, EtherNet/IP commands do not
have a command length parameter.
The commands are transmitted via Ethernet/IP objects, i.e. objects from classes 04h, 64h, and
65h. There are two different modes: "Mixed mode" and "Separated mode".
7.8.2
Mixed mode
Figure 7.1
1 see chapter 7.8.4
Assembly instance
Size (32 bits)
Input
150 - 162 ( 50d)
2-15*
Output
100 - 112
2-15*
Configuration
112
0
Table 7.6
* see chapter 7.8.5
channel 1
channel 2
channel
IDENTControl Compact
class 64
h
instance 06
d
attribute 1-4
1
class 65
h
instance 06
d
attribute 1-4
1
input command object
output command object