MININET line

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MININET line

The MININET line uses the MININET protocol and is primarily intended for communication with B&R MULTI/MIDI/MINI and compact (SG2) controllers. In principle, it is also possible to communicate with SG3 and SG4 controllers (System 2000) using Mininet. However, the NET2000 or INA2000 line is more suitable for this.

The following topics are covered in this section:

MININET process objects

MININET access types

MININET event types

MININET communication

MININET process objects

A line object, a device object, and a station object are all needed to establish a communication connection to a MININET station.

Process objects in the MININET line:

Name

Type

Connection

Usage

Line object

Line

"LNMINI"

MININET line

Device object

Device

Device parameter

Represents the communication device being used

Station object

Station

Station number

Represents a MININET station (PLC) in a network

CPU object

CPU

 

Can be specified, but not required.

Module object

Modules

 

Can be specified, but not required.

Task object

Task

 

Can be specified, but not required.

Variable object

Pvar

Variable name

Represents a variable on the PLC

Object structure for MININET process objects:

pvilnminiobjectstruktur

MININET access types

The following table shows an overview of all access types which are regulated via a line. All access types not listed here as well as access types to the PVI base object are executed by PVI Manager and therefore work independently of the line being used. The corresponding process object type is listed in the "Type" column.

Access types

Type

Special features

POBJ_ACC_VERSION

Line

Device

Line object: Version of the line DLL.

Device object: Version of the INA frame DLL

POBJ_ACC_LIST_EXTERN

Line

List of all installed MININET devices

POBJ_ACC_DATA

Pvar

 

POBJ_ACC_STATUS

 

Not supported

POBJ_ACC_TYPE_EXTERN

 

Not supported

POBJ_ACC_UPLOAD

 

Not supported

POBJ_ACC_DOWNLOAD

 

Not supported

POBJ_ACC_DATE_TIME

 

Not supported

POBJ_ACC_MEM_DELETE

 

Not supported

POBJ_ACC_MEM_INFO

 

Not supported

POBJ_ACC_MOD_TYPE

 

Not supported

POBJ_ACC_UPLOAD_STM

 

Not supported

POBJ_ACC_DOWNLOAD_STM

 

Not supported

POBJ_ACC_MOD_DATA

 

Not supported

POBJ_ACC_MOD_DELETE

 

Not supported

POBJ_ACC_LIST_STATION

 

Not supported

POBJ_ACC_LIST_CPU

 

Not supported

POBJ_ACC_LIST_MODULE

 

Not supported

POBJ_ACC_LIST_TASK

 

Not supported

POBJ_ACC_LIST_PVAR

 

Not supported

POBJ_ACC_CPU_INFO

 

Not supported

Access type > 255

 

Not supported

MININET event types

The following table shows an overview of all event types which can be generated from a line. All event types which are not listed are generated by PVI Manager and therefore work independently of the line being used.

Event types

Special features

POBJ_EVENT_STATUS

Not supported

POBJ_EVENT_PROCEEDING

Not supported

Event type > 255

Not supported