EtherNet/IP Adapter (Server)

The KAS Runtime includes fully integrated EtherNet/IP server driver for exchanging CIP I/O assemblies as an EtherNet/IP adapter in your applications.

Data Exchange - Configuration

A dedicated configuration tool is integrated in the KAS-IDE.

  1. Double-click the Fieldbus node in the project explorer to open it.
  2. Click the Insert Configuration icon to add the Fieldbus configuration.
  3. Select the EtherNet/IP Adapter in the configuration selector.

The configuration is represented as a tree:

  • EtherNet/IP I/O Scanner
    • Served I/Os and objects
      • I/O Assembly or Vendor Specific Object (*)
        • Exchanged Variable (*)

    (*) The items with this mark can appear several times in the configuration.

Configuration

These items can be configured at the root level:

Identifier

Meaning

Use LAN2

Obsolete

IP Address

IP address of the Ethernet adapter used.

Click the Insert Master icon to declare a server (adapter device).

Each server is identified by its IP address and an optional Description text.

Select the Served I/Os and objects node, then click the Insert Slave icon to declare a CIP I/O assembly or a vendor specific object. Up to 4 input and 4 output assemblies are supported by the KAS Runtime, even though it is possible to create more in the KAS-IDE.

Each assembly is identified by:

Identifier

Meaning

Mode

The kind of CIP object.

Either:

  • I/O assembly
  • Vendor specific object

Access

In case of a vendor specific object, this property defines the access rights:

  • Read/Write = free access
  • Read Only = the client (scanner) cannot write the object data

Class

CIP class in case of a vendor specific object. This field should be ignored in case of an I/O assembly.

Instance

Instance of the CIP assembly or object.

Size

Data size in bytes.

Read Only

Specify that a vendor-specific object is only readable by clients.

Description

Optional description text.

When defining a vendor specific objects, these attributes are available for scanners:

  • 1 (get only) = size of the object data.
  • 3 (get/set) = object data.

Then map IEC 61131-3 variables on the data of the assembly, for each variable you must specify:

Identifier

Meaning

Symbol

The name of the IEC 61131-3 variable

Offset

Offset in bytes in the assembly data

Bit

Bit offset in the selected byte if format is "Bit"

Format

Format of the data in the assembly

  • Drag a variable from the Dictionary directly to a slave item.


  • The data limit is:
    500 bytes of data maximum O(originator)->T(target) and
    500 bytes of data maximum T(target) -> O(originator).
    This is based on the EtherNet/IP specification.