Hardy Process Solutions HI 6500 Series, Руководство пользователя

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Chapter 4
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EtherNet/IP
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EtherNet/IP, short for Ethernet Industrial Protocol, is an open industrial networking
standard that takes advantage of commercial, off-the-shelf Ethernet communication chips
and media. Ethernet technology enables the user to access device-level data from the
Internet. The EtherNet/IP networking standard supports both implicit messaging (real-time
I/O messaging) and explicit messaging (message exchange). EtherNet/IP is an open
network that takes advantage of Commercial technology that already exists. EtherNet/IP is
a trademark of ODVA.
IP is the transport and network layer protocol of the Internet and is commonly linked with
all Ethernet installations and the business world. IP provides a set of services that any two
devices can use to share data.
Once you have the Ethernet TCP/IP setup, there is no other configuration needed through
either the web page or the front panel for the Ethernet/IP setup in the HI 6500.
Refer to the I/O tables in the previous section for an understanding of the data and format
for the EtherNet/IP communications.
If you are connecting to an Allen-Bradley® Control Logix PLC®, the following is the setup
parameters needed in the I/O configuration of the PLC to communicate with the HI 6500.
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COMM FORMAT: DATA – DINT
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INPUT INSTANCE 100, LENGTH 12
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OUTPUT INSTANCE 112 - LENGTH 12
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CONFIGURATION INSTANCE 150 - LENGTH 0
If there is a problem with the connection between the PLC and the HI 6500, recheck the IP
addresses used and the setup parameters in the PLC I/O configuration.
The read-only Connected entry confirms that the 6500 is connected to the network. If the
instrument is not connected to the network, a message appears saying “Not Connected.”
Check the EtherNet/IP connection at the rear of the instrument to make sure it is securely
fastened to the EtherNet/IP port.
Hardy provides a Rockwell Add-on-Profile (AOP) for the HI 6500 series that makes PLC
setup fast and easy. Download the AOP from the Downloads page for the HI 6500 website
at www.hardysolutions.com.
Modbus TCP
MODBUS is an application layer messaging protocol used to support client / server
communications between devices connected on different types of buses or networks. All
the HI 6500 series units have Modbus TCP built-in..There is no setup in the HI 6500 unit
to configure the Modbus TCP.
Refer to the I/O tables in previous section for an understanding of the data and format for
the Modbus TCP communications.