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WR915 (specified in word)
Relay
number
COM4 port communication error
R9150
flag
R9151
COM4 port operation mode flag
Reception completion flag for
R9152
COM4 port general-purpose
communication
Sending completion flag for
R9153
COM4 port general-purpose
communication
COM4 port
R9154
SEND / RECV instruction
executable flag
COM4 port
R9155
SEND / RECV instruction
execution completion flag
R9156
Unused
-R915F
Name
When performing data communication, if a transmission error
occurs, it is ON.
When requesting for sending via the F159 (MTRN)
instruction, it is OFF.
When using the general-purpose communication function, it is
ON.
When using a function outside of the general-purpose
communication function, it is OFF.
For general-purpose communication, if the end character is
received, it is ON.
For general-purpose communication, if end the transmission,
it is ON.
For general-purpose communication, if transmitting is
required, it is OFF.
Indicates the status with respect to the Executable/Non-
executable status of F145 (SEND) or F146 (RECV) instruction
of the COM0 port.
OFF: non-executable (instruction executing)
ON: executable
Indicates the status with respect to the execution status of
F145 (SEND) or F146 (RECV) instruction of the COM4 port.
OFF: normal completion
ON: abnormal completion (a communication error occurs)
The error code is stored to DT90128.
26.6 Table of Special Internal Relays
Description
26-77
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