Omron CJ - INSTRUCTIONS Reference Manual page 899

Flags
Name
Error Flag ER
Related Auxiliary Area Words and Bits
Auxiliary Area Flags for CPU Unit's RS-232C Port
Name
RS-232C Port Reception Completed Flag
RS-232C Port Reception Overflow Flag
RS-232C Port Reception Counter
CS/CJ/NSJ Series Instructions Reference Manual (W474)
Label
• ON if the CPU Unit's RS-232C port is specified as the send port, but no-protocol mode is not set in
the PLC Setup.
• ON if one of the Serial Communication Board's serial ports is specified as the send port, but no-proto-
col mode is not set in the port's allocated DM Setup Area. ON if one of the Serial Communications
Board's serial ports is specified, but the Board does not support no-protocol mode (the Board does
not have a version number).
• ON if the value of C is not within range.
• ON if the value for N is not between 0000 and 0100 hex.
• When using CS1D CPU Units, ON if active and standby CPU Units could not be synchronized.
• ON (ER Flag in interrupt tasks) if a TXD(236) or RXD(235) instruction is being executed for the Serial
Communications Board in the cyclic task, the cyclic task is interrupted, and another TXD(236) or
RXD(235) instruction is executed for the Serial Communications Board in the interrupt task.
• ON if a RXD(235) was executed for a serial port on a Serial Communications Board that was being
restarted.
• OFF in all other cases.
Address
A392.06 ON when no-protocol reception is completed.
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.
A392.07 ON when more than the expected number of receive bytes has been received.
Number of Receive Bytes Specified: The flag will turn ON when anything is received
after reception has been completed 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 execution 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.
3. Instructions
Operation
Contents
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