Specifications

Allen-Bradley DH+ Driver Help

I:12 word 0 slot 12.

I:12.2 word 2 slot 12.

I:4.0/0 bit 0 word 0 slot 4.

I:4/0 bit 0 slot 4 (same as I:4.0/0).

I:4.2/0 bit 0 word 2 slot 4.

I:4/32 bit 32 slot 4 (same as I:4.2/0).

Binary Files

To access a binary file, specify a file number, a word and (optionally) a bit within the word. The default data type

for all syntax is shown in bold.

Syntax Data Type

B<file>:<word> Short, Word, BCD, DWord, Long, LBCD

B<file>:<word> [rows][cols] Short, Word, BCD, DWord, Long, LBCD*

B<file>:<word> [cols] Short, Word, BCD, DWord, Long, LBCD*

B<file>:<word>/<bit> Boolean

B<file>/bit Boolean

*Array types.

The number of array elements (in bytes) cannot exceed the block request size specified. This means that array

size cannot exceed 16 words given a block request size of 32 bytes. For more information, refer to

Communications Parameters.

The following file numbers and maximum word locations are allowed for each model. The maximum word location

is one less when accessing as a 32 bit data type (Long, DWord or Long BCD).

PLC Model File Number Max Word

SLC 5/05 Open 3, 9-999 999

PLC-5 Family 3-999 1999

Example Description

B3:0 word 0.

B3/26 bit 26.

B12:4/15 bit 15 word 4.

B3:10 [20] 20 element array starting at word 10.

B15:0 [6] [6] 6 by 6 element array starting at word 0.

Status Files

To access a status file, specify a word and (optionally) a bit within the word. The default data type for all syntax is

shown in bold.

Syntax Data Type

S:<word> Short, Word, BCD, DWord, Long, LBCD

S:<word> [rows][cols] Short, Word, BCD, DWord, Long, LBCD*

S:<word> [cols] Short, Word, BCD, DWord, Long, LBCD*

S:<word>/<bit> Boolean

S/bit Boolean

*Array types.

The number of array elements (in bytes) cannot exceed the block request size specified. This means that array

size cannot exceed 16 words given a block request size of 32 bytes. For more information, refer to

Communications Parameters.

The following word locations are allowed for each model. The maximum word location is one less when accessing

as a 32 bit data type (Long, DWord or Long BCD).