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Overview of Rockwell protocol

The following image shows the data source input window for the Rockwell protocol:

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Rockwell data source parameter

In order to connect a Rockwell device, you need to select the Rockwell protocol and enter the following data source parameters:

Parameter

Description

CPU type

Shows available CPU types:

  • COMPACT_LOGIX

  • CONTROL_LOGIX

  • MICRO_800

  • OTHER_CPU

Currently not available:

  • FLEX_LOGIX

  • MICRO_LOGIX

  • SOFT_LOGIX

  • PLC5

  • SLC500

Note: The CONTROL_LOGIX and MICRO_800 CPU types are supported from the version MindConnect Nano/IoT2040 V03.04.02.06 b002.

IP address

IP address of the Rockwell controller.

Route parameters

Here you can define the routing path parameters - like rack, slot, node, and/or ControlNet port numbers - needed to access the controller (default: 1,0).

Rockwell data point parameter

In order to collect the data of your Rockwell device, you must add new data points.

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The following table shows the data point parameter:

Parameter

Description

Data Type

Data type supported by backend (e.g. INT).

STRING data type is currently not supported.

Tag

Name of the tag that has to be recorded.

The following table shows the recommended data type selection:

Rockwell data type

Length

Data range1)

MindSphere data type

BOOL

1 bit

0 or 1

BOOLEAN

SINT

1 byte

-128…+127

INT

INT

2 bytes

-32,768…+32,767

INT

DINT

4 bytes

-2,147,483,648…+2,147,483,647

INT

REAL

4 bytes

  • -3.40282347E38…-1.17549435E-38 (negative values)

  • 0

  • -1.17549435E-38-…3.40282347E38 (positive values)

DOUBLE

1)Values have been taken from Logix 5000 Controllers I/O and Tag Data Programming Manual

NOTE

PCL data types

Currently only these PLC data types are supported.

Chap. 10.8