User Manual

Function blocks
215
08/04 AWB2528-1423GB
Actual value …QV>
The actual value
…QV> can be assigned the following
operands:
• Markers MD, MW, MB
• Analog output QA01
Displaying the parameter set in the PARAMETERS
menu
• + Access enabled
• – Access disabled
Coil
NC01EN to NC32EN: enable coil.
Memory requirement of the numerical converter
The numerical converter function block requires 32 bytes of
memory plus 4 bytes per constant on the function block
input.
Function of the numerical converter function block
BCD mode
The BCD value at
>I1 is provided in decimal format at the
input. The binary value is formed from this. The binary value
is interpreted as a BCD value. Values greater than 9 (1001)
are set to the value 9. The BCD value is output as a decimal
value at the output QV>.
Example 1:
Input value >I1: +9
dec
Binary value: 1001
Decimal value QV>: + 9
Example 2:
Input value>I1: +14
dec
Binary value: 1110
Decimal value QV>: + 9
h
The numerical converter function block must be enabled
so that it can work. Coil NC..EN is active. If coil NC..EN is
not active, the entire function block is deactivated and
reset. The output value is set to zero.