10 EtherNet/IP interface
The EtherNet/IP interface allows for readout of measured values and other operating
data, activation/deactivation of the measuring laser, setting/resetting of a preset to
a system-specific initialization value and the transmission of parameter data to the
device.
The device complies with “Encoder Device Profile 0x22” of the ODVA™ EtherNet/IP™
specification.
For information on commissioning the device in the EtherNet/IP network, see "Commis‐
sioning in EtherNet/IP network", page 68.
10.1 Basics
EtherNet/IP is based on Ethernet and uses the Common Industrial Protocol (CIP) of the
Open DeviceNet Vendor Association (ODVA).
10.1.1 Object model
CIP uses a network-independent object model to define device functions and to
exchange data between devices. The device is modeled as a collection of objects. The
terms used in this object model are described below.
Table 21: Sample data for CIP object model
Class (hex code) Instance Attribute Attribute value
Ethernet link object (F6h) 1 Interface Speed Port 1 (Attr. 1) 100 Mbit/s
Physical Address Port 1 (Attr. 3) 00:06:77:01:A2:29
... ...
2 Interface Speed Port 2 (Attr. 1) 10 Mbit/s
Physical Address Port 2 (Attr. 3) 00:06:77:01:A2:29
... ...
Position Sensor Object
(23h)
1 Position Value (Attr. 10) 5,456 mm
Temperature (Attr. 101) +38 °C
... ...
... ... ... ...
Class
A class (also called “object type”) contains related objects of a device. The classes are
uniquely identified by a “Class Code”, e.g., “F6h” for the “Ethernet Link Object” class.
This class contains all connection-specific attributes such as transmission speed, MAC
address, duplex mode, etc.
Instance
An instance (also called “object”) is a concrete instance of an object type. It consists
of various attributes that describe the properties of this instance. A class can consist
of one or more instances. In the case of multiple instances, these have the same
attributes, the same behavior, and the same services as defined in the CIP.
Example: For the device, the F6h Ethernet Link Object class consists of 2 instances.
Since the device has 2 independent Ethernet ports, their respective connection-specific
attributes are represented in a separate instance. Both instances have the same
attributes (e.g., transmission speed or MAC address). However, the values in the 2
instances may be different (e.g. transmission speed 100 Mbit/s for Ethernet port 1 and
10 Mbit/s for Ethernet port 2).
10 ETHERNET/IP INTERFACE
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O P E R A T I N G I N S T R U C T I O N S | DL100 Pro EtherNet/IP 8016994/19HB/2022-03-15 | SICK
Subject to change without notice
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