Rockwell Automation Samsung NX-SCU, Руководство пользователя

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Programming
Send and receive data with CPU unit ladder program for data READ /
WRITE with shared memory in the SCU. Two advanced instructions are
used for this:
READ (F150) and WRT (F151) .
In addition, handshake for data READ/WRITE will be determined by
contact on/off (two points for each X and Y).
Program Configuration
● A program consists of handshake with shared memory and
advanced instructions.
See "Timing for Sending and Receiving" on page 25 for detailed
information on handshake timing.
See "Advanced Instructions" on page 27 for detailed information on
PLC advanced instructions.
See "Shared Memory Allocation Table" on page 29 for detailed
information on shared memory.
See "I/O Allocation Table" on page 31 for detailed information on I/O
allocation.
Shared memory
Register
(Word operand)
Special (high-
function) Unit:
Special units
that include
process and
shared memory
inside the unit.
(Ex. SCU,
Analog, Location
Spotting units)
Data read from
special (high-function)
unit (F150)
Data write to
special (high-function)
unit (F151)
High-function unit
CPU unit
NX Series
WX, WY.....
DT (data)
FL (file)
Ld (link)
NX plus series
R.....
M (data)
W (file)
L (link)