Specifications

Allen-Bradley DH+ Driver Help

Address Descriptions

Address specifications vary depending on the model in use. To obtain specific address information for the model

of interest, select a link from the list below.

General Addressing

SLC Family Open Addressing

PLC-5 Family Addressing

General Addressing

These general addresses pertain to both the SLC50/5 and PLC-5.

Output Files

Input Files

Status Files

Binary Files

Timer Files

Counter Files

Control Files

Integer Files

Float Files

ASCII Files

String Files

See Also: SLC Family Open Addressing and PLC-5 Family Addressing.

Output Files

The syntax for accessing data in the output file depends on the PLC model. Data locations are Read/Write for PLC-

5 Models and Read Only for all other models. Arrays are not supported. The default data type for all syntax is

shown in bold.

Note: PLC-5 Model Word and bit address information is in octal. This follows the convention of the programming

software.

PLC-5 Model Syntax

Syntax Data Type

O:<word> Short, Word, BCD

O:<word>/<bit> Boolean

O/bit Boolean

SLC Family Open Models (Modular I/O) Syntax

Syntax Data Type

O:<slot> Short, Word, BCD

O:<slot>.<word> Short, Word, BCD

O:<slot>/<bit> Boolean

O:<slot>.<word>/<bit> Boolean

The following slot and word locations are allowed for each model.

PLC Model Min Slot Max Slot Max Word

SLC Family 1 30 *

PLC-5 Family NA NA 277

*For information on the number of input or output words available for each I/O module, refer to Modular I/O

Selection Guide.

Note: For more information on slot configuration, refer to Device Setup.

Examples

PLC-5 Addresses