Rockwell Automation 1772-LS_LSP,D17726.8.6 PROG/OPER MANUAL-MINI PLC-2/05 - Manual (Page 87)

Data Manipulation Instructions
Chapter 9
9Ć12
Case 2. Two Get Bytes
XXXD 040
BCC
B
WWW
8
PUT
BBCCC
16
only these three letters
are displayed
XXXD
B
YYY
8
XXX word address
WWW
YYY
octal values Ć upper or lower byte
D
0
1
Ć lower byte
Ć upper byte
Two Get Byte instructions are programmed in the condition area of the ladder
rung. It tells the processor to make a duplicate of all 8 bits in each addressed
byte. When the rung containing the Get Byte/Put instructions goes true, the
data from the first get byte is transferred into the upper byte of the addressed
Put instruction. Also, the data from the second get byte is transferred into the
lower byte of the addressed Put instruction.
Keystrokes: You enter a Get Byte/Put instruction by performing the
following steps.
1. Press -[B]-.
2. Enter <address>.
3. Enter <byte designation>.
Important: Repeat steps 1, 2 and 3 when using two Get Byte instructions.
4. Press -(PUT)-.
5. Enter <address>.