Shift Register

To shift the number 64 left by 1 bit:

1. Use a Store function to write the number 64 into SI 87.

2. Use a Store function to write the number 1 into SI 88.

3. Turn SB 87 ON.

Once the function is performed SI 87 will contain 128.

In binary:

Start value:          0000000001000000  = 64

After Shift Left :     0000000010000000  =128

To shift the number 64 right by 1 bit:

1. Use a Store function to write the number 64 into SI 87.

2. Use a Store function to write the number 1 into SI 88.

3. Turn SB 88 ON.

Once the function is performed SI 87 will contain 32.

In binary:

Start value:          0000000001000000  = 64

After Shift Right:     0000000000100000   =32