ATI Technologies Q46-85 İletişim Kılavuzu - Sayfa 3
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1.1
General
Q46 Analyzers are available with four digital communication options. Profibus-
DP, Modbus-RTU, Modbus-TCP/IP, or Ethernet/IP. This manual applies only to
instruments supplied with the Ethernet/IP communication option. It is critical to
note that Ethernet/IP devices only communicate with other systems running the
Industrial Protocol of Ethernet. You cannot plug a Q46 into your office Ethernet
and expect to have the Q46 talk to your computer.
The discussion of standard Ethernet and Ethernet/IP is vast, and well
beyond the ability to discuss here in great detail. The documentation for
this option assumes working network knowledge by the user.
1.2
Ethernet/IP Communication
Ethernet/IP was first introduced in 2001, and is a highly developed and complete
protocol for an industrial Ethernet network solution. Intended for automation
applications, EtherNet/IP is a member of a family of networks that implement the
Common Industrial Protocol (CIP) at its upper layers of the standard ISO/OSI 7-
layer model. CIP defines the object structure, specifies the message transfer,
provides users with a unified communication architecture, and encompasses a
comprehensive suite of services for a variety of manufacturing automation
applications which include data, control, safety, and configuration.
In the CIP Protocol, every network device represents itself as a series of objects.
Each object is simply a grouping of the related data values in a device. The
identity object contains related identity data values called attributes. Attributes for
the identity object include the vendor ID, date of manufacture, device serial
number and other identity data.
The Q46 utilizes a gateway device inside the analyzer that maps an internal
Modbus data structure into the required Ethernet/IP data object. This is done to
maintain plug-and-play compatibility to all Q46 digital communication options.
Any communication option can be plugged into any Q46 for immediate
conversion to a new protocol.
Because this gateway device is part of the Q46 interface, the ID and device type
show up on the interface as the gateway device. However, the Q46 variation
type is mapped into the application data object as the last byte.
Part 1 – Ethernet/IP Description
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