Omron CJ1W-SCU32 Operation Manual page 261

Device variable for CJ-series Unit
Port 1
*_P1_TransErrSta *_P2_TransErrSta
*_P1_TransErr
*_P1_FCSErr
*_P1_OverRunErr
*_P1_FramingErr
*_P1_ParityErr
*_P1_MbsCmdRxCntS *_P2_MbsCmdRxCntS
ta ta
*_P1_MbsRespTxCntS *_P2_MbsRespTxCntS
ta ta
*_P1_MbsTxErrCnt *_P2_MbsTxErrCnt
*_P1_MbsCRCErrCnt *_P2_MbsCRCErrCnt
*_P1_MbsCmdErrCnt *_P2_MbsCmdErrCnt
*1 The current settings for the port are read. For details on the read contents, refer to 7-2-1 Device Variable for
CJ-series Unit for System Settings. If a System Setup error occurs, the default settings will be read.
*2 The status of this bit is not fixed in the Modbus-RTU Slave Mode.
*3 Always FALSE in the Modbus-RTU Slave Mode.
*4 In the Modbus-RTU Slave Mode, this bit is changed to TRUE if a CRC check error has occurred.
Error Log EEPROM Error
This bit will be set to TRUE if an error occurs in reading or writing the error log stored in EEPROM on
the assumption that the EEPROM has reached its useful life. At the same time, the ERC indicator
will also light.
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
Type
Port 2
WORD
*_P2_TransErr BOOL
*_P2_FCSErr BOOL
*_P2_OverRunErr BOOL
*_P2_FramingErr BOOL
*_P2_ParityErr BOOL
UINT
UINT
UINT
UINT
UINT
7 Using Modbus-RTU Slave Mode
R/W Name
R Transmis- Bit 15: Transmission error
sion Error
Bit 07: FCS check error
Status
Bit 04: Overrun error
Bit 03: Framing error
Bit 02: Parity error
R Transmis- TRUE: Transmission error
sion Error
FALSE: No transmission error
R FCS Check TRUE: FCS check error
Error (*4)
FALSE: FCS check normal
R Overrun TRUE: Overrun error
Error
FALSE: Normal
R Framing TRUE: Framing error
Error
FALSE: Normal
R Parity Error TRUE: Parity error
FALSE: Normal
R Number of The number of normal Modbus-
Normally RTU commands received from the
Received communications port is stored.
Commands
R Number of The number of normal Modbus-
Normally RTU responses sent to the com-
Sent munications port is stored.
Responses
R Number of The number of overrun errors,
Overrun framing errors, and parity errors
Errors, that occurred is stored.
Framing
Errors, and
Parity Errors
(Transmis-
sion Errors)
R Number of The number of CRC errors that
CRC Errors occurred is stored.
(Transmis-
sion Errors)
R Number of The number of illegal function
Command codes and illegal addresses/data in
Format received Modbus-RTU commands
Errors (Ille- is stored.
gal Function
Codes and
Illegal
Addresses)
Function
7-11
7