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9 EtherNet/IP
The EtherNet/IP module maps the object temperature, internal temperature, device status and other pyrometer
data to its input assembly which is then sent onto the EtherNet/IP network using CIP. In the initialization phase,
the device sends configuration data which is accessible for setup via the PLC programming software controller
tags. Furthermore, EtherNet/IP allows you to change a subset of sensor parameters in data exchange mode using
output data. For the device diagnostics, there is a special status register containing an error code, which is sent a
part of the device's input data.
Specification:
•
Device class: adapter device
•
Device type: 06h (Photoelectric sensor)
9.1 Configuration
The easiest way to incorporate an EtherNet/IP device into a PLC programming software project is by installing the
EDS file and selecting the right module type. The device's input, output and config assemblies will be configured
automatically. It is also possible to add the device manually using generic Ethernet module.
To allow for an easier implementation in automation projects, the device manufacturer describes the device
features in an EDS file, which is supplied to the user and can be installed into the PLC programming environment
using EDS hardware installation tool.
The EtherNet/IP device EDS file is named as:
T40EIP.eds
The EtherNet/IP device configuration using the EDS file (after it has been installed) only consists of choosing the
right module, naming the device and typing in its IP address.
A manual configuration of the EtherNet/IP pyrometer is based on a generic Ethernet module. In this case, the
assembly instance number and size must be typed in. The device settings are:
•
Data type: SINT
•
Input assembly instance 101, size 23 byte
•
Output assembly instance 100, size 5 byte
•
Configuration assembly instance 102, size 0 (the size of the configuration assembly is 58 bytes, however,
sending it empty will cause an I/O failure. Configuration assembly is available when using EDS file.)
9.2 Parameters
All settable parameters of the Thermalert 4.0 pyrometer are available in the Configuration Data. Changing the
parameters this way can only happen upon device initialization, i.e. when downloading the program to the PLC
(default values are sent if no changes have been made). Once the parameter setting has been performed, the I/O
device is ready to send cyclic productive data. While certain pyrometer characteristics are parameterizable only
during the configuration, others can also be set in the data exchange mode using Output Data. The tables below
contain all the parametrizable characteristics and are followed by a short implementation description.
The parameters included in the configuration data are accessible through controller tags in the PLC programming
environment. Changing them in the controller tags will first have effect after downloading the program to the PLC.
The programming software allows however for an easy saving of these tags so that the values can always be sent
as default upon initialization.
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.com
EtherNet/IP
Configuration
65
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