Specifications

Allen-Bradley ControlLogix Ethernet Driver Help

Block Transfer Files

Block transfer files are a structured type whose data is accessed by specifying a file number, an element, and a

field. The default data types are shown in bold.

PLC-5 Syntax

Syntax Data Type Access

BT<file>:<element>.<field> Depends on field Depends on field

The following fields are allowed for each element. For more information on the meaning of each field, refer to the

PLC's documentation.

Element Field Data Type Access

RLEN Word, Short Read/Write

DLEN Word, Short Read/Write

FILE Word, Short Read/Write

ELEM Word, Short Read/Write

RW Boolean Read/Write

ST Boolean Read/Write

DN Boolean Read/Write

ER Boolean Read/Write

CO Boolean Read/Write

EW Boolean Read/Write

NR Boolean Read/Write

TO Boolean Read/Write

Ranges

PLC Model File Number Max. Element

MicroLogix NA NA

SLC 500 Fixed I/O NA NA

SLC 500 Modular I/O NA NA

PLC-5 Series 3-999 1999

Examples

Example Description

BT14:0.RLEN Requested length field of BT 0 file 14

BT18:6.CO Continue bit of BT 6 file 18

Function File Listing

For information on the files supported by the ENI MicroLogix and MicroLogix 1100 device models, select a link

from the list below.

High-Speed Counter File (HSC)

Real-Time Clock File (RTC)

Channel 0 Communication Status File (CS0)

Channel 1 Communication Status File (CS1)

I/O Module Status File (IOS)

Note: For more information on device models and their supported files, refer to Address Descriptions.

High-Speed Counter File (HSC)

The HSC files are a structured type whose data is accessed by specifying an element and a field. The default data

types are shown in bold.

See Also: ENI DF1/ DH+/ControlNet Gateway Communications Parameters

Syntax Data Type Access

HSC:<element>.<field> Depends on field. Depends on field.