Rockwell Automation 2706-DXX Dataliner Message Display DL5 Series - Manual (Page 53)

2706-UM001A-US-P
Using the Parallel Port 7-3
Selecting BCD or Binary Data
Format The parallel port will accept data and message triggers in either a binary or
Binary Coded Decimal (BCD) format or in non-coded discrete form which
allows the DL5 to easily replace pilot lights as described in Chapter 10.
Each numbering system, binary or BCD, has its own merits. Your choice
will often be based upon the format used by your controller. Both the
binary and BCD numbering systems allow you to address all 999 possible
message numbers but vastly different maximum variable values. The
maximum variable value that can be input in binary or BCD run modes is
shown below:
You must select which format best suits your needs and then select the run
mode as described in Chapter 8.
Run Mode Maximum Message # Maximum Variable Value
BCD 999 3,999
Binary 999 16,383