Omron CJ1W-SCU32 Operation Manual page 106

2 Initial Settings and Allocations of Device Variable for CJ-series Unit
No-protocol Mode
Device variable for CJ-series Unit
Port 1
*_P1_NopSta
*_P1_NopRcvOvfSta
*_P1_NopRcvComplet
eSta
*_P1_NopSerialSendE
xecSta
*_P1_NopRcvCntSta
2-32
Port 2
*_P2_NopSta
*_P2_NopRcvOvfSta
*_P2_NopRcvComplet
eSta
*_P2_NopSerialSendE
xecSta
*_P2_NopRcvCntSta
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
Type R/W Name
WORD R No-protocol
Mode Status
BOOL R Reception
Overflow Flag
BOOL R Reception
Completed
Flag
BOOL R SerialSend
Executing Flag
UINT R Reception
Counter (Num-
ber of Receive
Data Bytes)
Function
Bit 07: Reception Overflow
Flag
Bit 06: Reception Com-
pleted Flag
Bit 05: SerialSend Execut-
ing Flag
TRUE: Unit received more
than the specified number
of bytes
FALSE: Unit did not
receive more than the
specified number of bytes
TRUE: Reception com-
pleted
FALSE: No reception or
reception in progress
TRUE: Executing
FALSE: Not executing
Counts the number of
received data bytes that
have not been read from 0
to 256 (0 to 256 bytes).
If an end code is present,
counts the number of
unread data bytes up to
the end code.