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CHAPTER8 PARAMETERS
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8.1 PLC Parameters
(11) Serial Note8.3Note1
The transmission speed, sum check, transmission wait time, and RUN write setting for using the serial
communication function of the CPU module are set.
Note1
Figure 8.11 Serial
Table8.11 Serial setting list
Item
Parameter
No.
Description Setting range Default Reference
Use serial communication
100E
H
Select the item when using the
serial communication function.
Selected/deselected Deselected
Section 6.23
Transmission speed
Set a transmission speed for data
communication with the external
device.
9.6kbps, 19.2kbps, 38.4kbps,
57.6kbps, 115.2kbps
19.2kbps
Sum check
Set whether to add a sum check
code to a message sent or
received when using the serial
communication function,
according to the specifications of
the external device.
Selected/deselected Selected
Transmission wait time
Set a period of waiting time on the
Basic model QCPU side in case
the CPU module cannot receive
data immediately after the
external device sends data.
No waiting time/10ms to
150ms (in increments of
10ms)
No waiting time
RUN write setting
Enable or disable writing of data
from the external device to the
running CPU module.
Selected/deselected Deselected
Note8.3
When using the serial communication function for the Q02UCPU, check the versions of the CPU module and GX
Developer. ( Appendix 2)
The Q03UDCPU, Q04UDHCPU, Q06UDHCPU, Q10UDHCPU, Q13UDHCPU, Q20UDHCPU, Q26UDHCPU, and
Built-in Ethernet port QCPU do not support the serial communication function.
Universal