6F3B0253
Basic Hardware and Function 115
7. Instructions
Special I/O instru ctions
FUN
No. Name Expression Function Steps Speed
(µs) Available Page
235 Direct I/O −[ I/O (n) A ]−Performs the immediate
block I/O transfer of n
registers starting with A.320.7 +
21.3 × n√ *1 257
236 Expanded data
transfer
−[ A XFER B → C ]−Writes data into the built-in
EEPROM, or reads data
from the EEPROM. The
transfer source and
destination are indirectly
designated by A and C. The
transfer register size is
designated by B.
4
54.0
1w
read
-
7130
16w
write
√259
*1: Direct I/O instruction is effective only for the basic unit inputs/outputs.
*2: The expanded data transfer (XFER) instruction supports some special functions. It
also supports the communication function. The execution speed shown in the
above table is for the EEPROM read/write function. When the Inverter connection
mode is selected, the execution speed of this instruction is typically 150 µs (max.
500 µs).
The index modification is available for some instructions. The values in the
execution speed column show the execution time without index
modification.
If index modification is used, approx. 20 µs is added per one indexed
operand.
NOTE