10
DEVICE EXPLANATION
10.5 Module Access Devices
10.5.1 Intelligent function module device (U\G)
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(3) Processing speed
The processing speed for intelligent function module devices is;
• The processing speed of write/read by the intelligent function module is slightly
higher than that of write/read by the FROM/TO instruction.(For example, "MOV
U2\G11 D0")
• To conduct reading the buffer memory of the intelligent function module/special
and another process in a single instruction, add the
processing speed of FROM/TO instruction and processing speed of instruction to
setup the reference value.
(For example, case of "+ U2\G11 D0 D10")
Note15
POINT
When using the intelligent function module device in the sequence program twice
or more, and writing/reading data of the buffer memory, writing/reading data in one
place of the program with the FROM/TO instruction enables to speed up the
processing speed.
Remark
1) For details on buffer memory addresses and applications, refer to the
intelligent function module/special function module manual.
2) Refer to the following manual for the FROM/TO instruction.
QCPU (Q Mode)/QnACPU Programming Manual (Common Instructions)
Note15
Figure 10.54 When writing to multiple devices in multiple steps
Figure 10.55 When writing to multiple devices in a step
Basic
Process
Redundant
Universal
UD
Note10.14
The Basic model QCPU, Process CPU, Redundant CPU and Universal model QCPU do not
support the special function modules.
Basic
Process
Redundant
Universal
UD
\
\
\
\
Store data in data
registers or other
Write to devices in a
step
Basic
Process
Redundant
Universal
UD
