Supported File Types

For PLC­3, PLC­5/250, and PLC­5 devices, data can be read and written to the following file types:

File Type

Description

Comments

N

Integer

 

I

Input

Not supported for PLC-5/250, SLC-5/04 or SLC-5/05

O

Output

Not supported for PLC-5/250, SLC-5/04 or SLC-5/05

F

Floating Point

Not supported for SLC-5/04 or SLC-5/05

B

Bit

 

T

Timer

PLC-5/250 CTL field is read-only

C

Counter

PLC-5/250 CTL field is read-only

S

Status

 

A

ASCII

Not supported for PLC-5/250

D

BCD

Not supported for PLC-5/250, SLC-5/04 or SLC-5/05

H

High Order Integer

PLC-3 only

L

Long Integer

PLC-5/250 only

R

Control

Not supported for PCL-3

PCL-5/250 CTL field is read-only

For points in the Floating Point (F) file type, use the FLOATING point type.

For points in the BCD (D) file type, use the 3D_BCD or 4D_BCD point type.

When using Recipe Management to read and write in Floating Point files, only floating point types are supported.

For the PLC­2, data can be read from and written to Register Memory only.

More information

Required Allen-Bradley software.

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