Allen-Bradley PLC-5/SLC 500/MicroLogix Families Discovery Agent

The Allen-Bradley PLC-5/SLC 500/MicroLogix Families Discovery Agent examines an exported address and symbol description file with an .EAS extension and finds all the symbols defined for a device. An .EAS file is exported from the Rockwell RSLogix 5 or RSLogix 500 programming software, containing address and symbol definition information in an RSLogix project.

You select the Allen-Bradley PLC-5/SLC 500/MicroLogix Families Discovery Agent on the Select a Discovery Agent page of the Discovery Agent Selection Wizard.

This section tells you how to use the Discovery Agent Selection Wizard to choose the Allen-Bradley PLC-5/SLC 500/MicroLogix Families Discovery Agent and how to extract symbol information from a Rockwell RSLogix .EAS file. When you click the Finish button at the end of the wizard the symbol information is extracted from the selected file, is read by the Discover and Auto Configure application, and then displayed in the spreadsheet.

The following table describes the columns exclusive to the Allen-Bradley PLC-5/SLC 500/MicroLogix Families Discovery Agent that are displayed in the spreadsheet.

Discovery Agent Section Columns

Column Name

Description

Name

The name of the symbol.

Address

The I/O address of the symbol.

Comment

Descriptive information about the symbol.

Type

The database tag type assigned to the symbol.

File Type

The file type associated with the symbol.

Allen-Bradley PLC Tag Status

The status of each symbol since it was last scanned from the .EAS file. For more information on tag statuses, see The Discovery Agent Section in the Discover and Auto Configure Application topic.

Supported File Types

The following table describes the file types supported by the Allen-Bradley PLC-5/SLC 500/MicroLogix Families Discovery Agent.

Discovery Agent Supported File Types

Type

Description

A

ASCII

B

Binary

BT

Block Transfer

C

Counter

CT

ControlNet Transfer

D

BCD

F

Float

I

Input

MG

Message Control

N

Integer

O

Output

PD

PID control

R

Control

S

Status

ST

String

R

Timer

IMPORTANT:

  • Generally, only the file or memory types supported by the GE ABR Driver v7.2x or above are supported by this Discovery Agent.
  • The Discovery Agent will not perform any Address Range checking. You need to make sure that the imported addresses match those in the PLC.
  • The Discovery Agent imports all the file or memory types in the above table, regardless of the type of PLC (for example, PLC-5, SLC 500, or MicroLogix) that you configured. The PLC may only support a sub-set of the above file or memory types. Therefore, when configuring your driver, you need to map it to the device with the appropriate PLC type. Otherwise, you may get errors when trying to add tags to iFIX or the driver configurations.

 

See Also

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