DL205 User Manual, 4th Edition, Rev. D
5-13
Chapter 5: Standard RLL Instructions
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A
B
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D
Or Bit-of-Word (ORB)
The Or Bit-of-Word instruction logically ors a normally
open Bit-of-Word contact in parallel with another
contact in a rung. Status of the contact will be the same
state as the bit referenced in the associated memory
location.
Or Not Bit-of-Word (ORNB)
The Or Not Bit-of-Word instruction logically ors a
normally closed Bit-of-Word contact in parallel with
another contact in a rung. Status of the contact will be
opposite the state of the bit referenced in the associated
memory location.
In the following Or Bit-of-Word example, when input X1 or bit 7 of V1400 is on, output Y7
will energize.
In the following Or Not Bit-of-Word example, when input X1 is on or bit 7 of V1400 is off,
output Y7 will energize.
Aaaa.bb
Aaaa.bb
230
240
250-1
260
230
240
250-1
260
Y7
OUT
X1
B1400.7
STR 1
Handheld Programmer Keystrokes
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