Logix

Connection String Options

Name

Type

Default Value

Required

Description

Name

Logix CIP

Code

logix

Maven Dependency

 
<dependency>
  <groupId>org.apache.plc4x</groupId>
  <artifactId>plc4j-driver-eip</artifactId>
  <version>0.12.0</version>
</dependency>

Default Transport

tcp

Supported Transports

  • tcp

Config options:

communication-path

STRING

The communication path allows for connection routing across multiple backplanes. It uses a common format found in Logix controllers.
It consists of pairs of values, each pair begins with either 1 (Backplane) or 2 (Ethernet), followed by a slot in the case of a backplane address,
or if using Ethernet an ip address. e.g. [1,4,2,192.168.0.1,1,1] - Routes to the 4th slot in the first rack, which is a ethernet module, it then connects to the address 192.168.0.1, then finds the module in slot 1.

backplane

INT

1

Without using routing information the backplane defaults to 1. This is overridden if communicationPath is provided.

slot

INT

0

The slot within the backplane the CPU is located.

big-endian

BOOLEAN

true

Configure if the connection should be set to transport data in Big-Endian format, or not.

force-unconnected-operation

BOOLEAN

false

Forces the driver to use unconnected requests.
Since: 0.13.0

Transport config options:

tcp

tcp.keep-alive

BOOLEAN

false

Should keep-alive packets be sent?

tcp.no-delay

BOOLEAN

true

Should packets be sent instantly or should we give the OS some time to aggregate data.

tcp.default-timeout

INT

1000

Timeout after which a connection will be treated as disconnected.

Individual Resource Address Format

Connection String

Logix has the following connection string format:-

logix:tcp://{ip-address}:{port}?{options}

An example connection string would look like:-

logix:tcp://127.0.0.1:502?communicationPath=[1,1]

Note the port and option fields are optional.

General Format

In general all Logix addresses have this format:

{address}:{data-type}[{array-size}]

If the array-size part is omitted, the size-default of 1 is assumed. If the data-type part is omitted, the data type from the controller is used The address format matches that found in the controller.

Data Types

The following data types are supported

  • BOOL (boolean)

  • SINT (int 8)

  • USINT (uint 8)

  • BYTE (uint 8)

  • INT (int 16)

  • UINT (uint 16)

  • WORD (uint 16)

  • DINT (int 32)

  • UDINT (uint 32)

  • DWORD (uint 32)

  • LINT (int 64)

  • REAL (float)