Instruction Manual

Pointe Controller User Guide Appendix C: Ladder Diagram Block Reference
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C.9.8 Integer to BCD (TO_BCD)
When used in a Ladder Diagram, the TO_BCD block converts a regular integer
value into an equivalent binary coded decimal (BCD).
Select the
tool (from the Miscellaneous Blocks toolbar) and click on a ladder
rung to insert the following block:
Once the block is inserted, you can double-click on it to configure it.
Functional Description
This block always passes the Enable input state (EN) through to the Enable Out
output state (ENO) without change; when EN becomes on, ENO is turned on, and
when EN becomes off, ENO is turned off.
When EN becomes on, the block function is executed: each digit of the Input
Value (IN) is separately converted into a 4-bit “nibble, and then the nibbles are
concatenated into a single binary which is placed in the Output Value (OUT).
For example, an integer value of 5319 would be converted in the following
manner:
DIGIT 5319
NIBBLE 0101 0011 0001 1001
The resulting BCD is 0101001100011001.
NOTE: Given the 32-bit limit on the size of Logic Memory variables, the largest
integer that can be practically converted into a BCD is 99999999.
The block function is executed every time the ladder is scanned, so long as EN
remains on. If EN becomes off, then OUT remains at its last calculated value until
EN becomes on and the block function is executed again.