EtherNet/IP IO Scanner (Client)

The KAS RuntimeClosed In computer science, runtime (or run-time) describes the operation of a computer program, the duration of its execution, from beginning to termination (compare compile time). Within KAS, runtime also refers to the virtual machine that manage the program written in a computer language while it is running includes a fully integrated EtherNet/IP client driver for exchanging CIPClosed "Common Industrial Protocol " The Common Industrial Protocol allows complete integration of control with information, multiple CIP Networks, and Internet technologies I/O assemblies as an EtherNet/IP scanner in your applications.

Data Exchange Configuration

A dedicated configuration tool is integrated in the KAS-IDEClosed "Integrated development environment" An integrated development environment is a type of computer software that assists computer programmers in developing software. IDEs normally consist of a source code editor, a compiler and/or interpreter, build-automation tools, and a debugger.

  1. Double-click the FieldbusClosed A Fieldbus is an industrial network system for real-time distributed control (e.g. CAN or Profibus). It is a way of connecting instruments in a plant design node in the project explorer to open it.
  2. Click the Insert Configuration icon to add the Fieldbus configuration.
  3. Then select the EtherNet/IP I/O Scanner in the configuration selector.

The configuration is represented as a tree:

  • EtherNet/IP I/O Scanner
    • Server (an EtherNet/IP adapter device) (*)
      • I/O Assembly (Originator to Target)
        • Exchanged Variable (*)
      • I/O Assembly (Target to Originator)
        • Exchanged Variable (*)

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

In addition to the IO configuration, explicit messaging can be performed using the blocks eipReadAttr and eipWriteAttr.

Server Configuration

Click the Insert Master icon to declare a server (slave adapter). Each server is identified by its IP address and an optional Description text.

These blocks of data are exchanged with the server for each connection:

  • Outputs (originator to target)
  • Inputs (target to originator)
  • Configuration: a static block sent to the server at connection time.

The instance number for the configuration may be specified in the properties of the server.

Edit the Configuration Data Block

While most devices do not expect any configuration it may happen that some data is required. For this, double click the server in the tree and click the Edit... button in the dialog box.

  • The configuration is entered as a list of items.
    • Use the Type button to specify the number of items and their data types.
  • Structured data types defined in the KAS-IDE are supported.
    • Enter values in the grid.
  • If you exchange multiple byte integers (e.g., WORD), you must specify whether the device expects little or big endian formatting.

Assembly Configuration

Click the Insert Slave button () to declare a CIP I/O assembly.

Each assembly is identified by:

Identifier

Meaning

Type

 Direction of the I/O assembly. Can be one of:
  • Originator to Target (outputs).
  • Target to Originator (inputs).

Instance

Instance of the CIP assembly.

Config.instance

The instance number of the configuration assembly.

The default value is 100.

Size

Data size in bytes.

Connection type

Type of the CIP connection.

Can be Point To Point or MultiCast.

Priority

CIP priority:

  • Low
  • High
  • Scheduled
  • Urgent

32 bit header

Check this option if a 32-bit header is to be sent on notifications.

RPIClosed "Requested Packet Interval"(ms)

Minimum period for notification of changes in milliseconds.

The range is 10 - 10000 ms.

Description

Optional description text.

Configuring Variables

IECClosed "International Electrotechnical Commission" IEC is a not-for-profit, non-governmental international standards organization that prepares and publishes International Standards for all electrical, electronic and related technologies 61131-3 variables may be mapped on the data of the assembly.

For each variable you must specify:

Identifier

Meaning

Symbol

The name of the IEC61131-3Closed IEC 61131-3 is the third part of the open international standard IEC 61131. The current (second) edition was published in 2003. IEC 61131-3 currently defines five programming languages for programmable control systems It deals with programming languages and defines two graphical and two textual PLC programming language standards 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

Mode

 Kind of data exchanged through the variable:
  • Data Exchange: a type of input or output data in the assembly
  • Server OK: indicates the status of the IP connection to the server
  • I/O connection OK: indicates the status of the CIP I/O connection
  • Last UCMM error: CIP code fo the last error occurred during a connection