Specifications

45
www.kepware.com
Allen-Bradley DH+/DH-485 Device Driver Help
The syntax for SLC Family Open models (modular I/O):
Syntax
Data Type
I:<slot>
Short, Word, BCD
I:<slot>.<word>
Short, Word, BCD
I:<slot>/<bit>
Boolean
I:<slot>.<word>/<bit>
Boolean
The following slot and word locations are allowed for each model.
PLC Model
Min Slot
Max Slot
Max Word
SLC 5/05
1
30
*
PLC5 Family
NA
NA
277 (octal)
*The number of Input or Output words available for each I/O module can be found in the Modular I/O Selection
Guide.
For slot configuration help, refer to Device Setup.
Examples
PLC-5
Addresses are in octal
I:0
word 0
I:10
word 8 (10 octal=8 decimal)
I/20
bit 16 (20 octal=16 decimal)
I:1/0
bit 0 word 1 (same as I/20)
SLC Family
I:1
word 0 slot 1
I:1.0
word 0 slot 1 (same as I:1)
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
The syntax for accessing a binary file is to 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 (array types)
B<file>:<word> [cols]
Short, Word, BCD, DWord, Long, LBCD (array types)
B<file>:<word>/<bit>
Boolean
B<file>/bit
Boolean
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.
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).