Specifications

Allen-Bradley DH+ Driver Help

R15:18.POS Position field of control 18 file 15.

R6:1.POS/4 Position field of control 1 file 6 (bit 4).

R6:0.S Status word of control 6 file 0.

R6:0.S/6 Status word of control 6 file 0 (bit 6).

Integer Files

To access an integer file, specify a file number, a word and an optional bit in the word. The default data type for

all syntax is shown in bold.

Syntax Data Type

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

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

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

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

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

PLC Model File Number Max Word

SLC Family 7, 9-999 999

PLC-5 Family 3-999 1999

Example Description

N7:0 word 0.

N7/26 bit 26.

N12:4/15 bit 15 word 4.

N7:10 [8] 8 element array starting at word 10.

N15:0 [4] [5] 4 by 5 element array starting at word 0.

Float Files

To access data in a Float file, specify a file number and an element. The only data type allowed is Float.

Syntax Data Type

F<file>:<element> Float

F<file>:<element> [rows][cols] Float array

F<file>:<element> [cols] Float array

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

size cannot exceed 8 Floats 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.

PLC Model File Number Max Word

SLC Family 8-999 999

PLC-5 Family 3-999 1999

Example Description

F8:0 Float 0.

F8:10 [16] 16 element array starting at word 10.

F15:0 [4] [4] 16 element array starting at word 0.