Omron CS1G/H-CPUxxH Instructions Manual page 883

Serial Communications Instructions
Related Flags and Words
862
The following PLC Setup settings and Auxiliary Area flag can be used as
required when executing RXD(235).
PLC Setup
Name
No-protocol Mode Start
Code
No-protocol Mode End
Code
No-protocol Receive Data
Bytes
Auxiliary Area
Name
RS-232C Port Reception
Completed Flag
RS-232C Port Reception
Overflow Flag
RS-232C Port Reception
Counter
Contents
Specifies if a start code is to be used in the
frame format for no-protocol mode commu-
nications.
Specifies if an code is to be used in the
frame format for no-protocol mode commu-
nications.
Specifies the number of bytes to be read
when no end code is specified.
Address
A39206 ON when no-protocol reception is com-
pleted.
Number of Receive Bytes Specified:
The flag will turn ON when the specified
number of bytes has been received.
End Code Specified: The flag will turn
ON when the end code is received or
when 256 bytes have been received.
A39207 ON when more that the expected num-
ber of receive bytes has been received.
Number of Receive Bytes Specified:
The flag will turn ON when anything is
received after reception has been com-
pleted and execution of the next
RXD(235).
End Code Specified: The flag will turn
ON when anything is received after the
end code has been received and execu-
tion of the next RXD(235) or when the
257th byte of data is received before the
end code is received.
A393 Counts in hexadecimal the number of
bytes received in no-protocol mode.
Section 3-24
Setting
0: None
(default)
1: Yes
(set 00 to
FF hex)
0: None
(default)
1: Yes
(set 00 to
FF hex or
CR+LF)
01 to FF
hex
(1 to 255
decimal)
Default: 00
( )
256 bytes
Contents