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I am reading digital switches, and on occasion, when the digit is converted, operation errors occur. Upon investigation, it seems that the error is occurring in the location of the BIN Conversion instruction.

ID:
795
Issued:
Dec 25th, 2009
Updated:
May 17th, 2013

I am reading digital switches, and on occasion, when the digit is converted, operation errors occur. Upon investigation, it seems that the error is occurring in the location of the BIN Conversion instruction.

ANSWER

The frequency that this problem occurs depends on the manufacturer of the digital switch and the type. The problem occurs when a value other than 0 to 9 is input at the instant that a value is switched, and this causes the operation error with the BIN Conversion instruction.

Simple ways of preventing this operation error are given below.

Example 1: In the case that one digit of the digital switch is connected to X10 to X13.


Example 2: In the case that two digits of the digital switch are connected to X10 to X17.


Example 3: In the case that four digits of the digital switch are connected to X10 to X1F.

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