LG Industrial Systems G3F-DA4I, Руководство пользователя

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Chapter 7. SPECIAL MODULE COMMAND(BUFFER MEMORY READ/ WRITE)
7 - 1
Chapter 7. SPECIAL MODULE COMMAND(BUFFER MEMORY READ/WRITE)
D/A conversion module occupies 16 I/O points.
7.1 LOCAL COMMAND
7.1.1 Buffer Memory Read -GET, GETP Command
Symbol Descriptions Device used
N1 Slot number assigned to special module Integer
N2
Head address of buffer memory of special module which stores
data to read
Integer
D Head address of device which stores data to read. M, P, K, L, T, C, D, #D
N3 Number of words of data to read Integer
< Distinction of GET and GETP>
GET: Continuously executes read while the read signal is on.
GETP: Execute read by switching on the read signal.
ex1) D/A conversion module is mounted on the slot 3 of base, and data from the buffer memory address 35 is read to the
CPU module D35.