Omron CJ1W-SCU32 Operation Manual page 101

Device variable for CJ-series Unit
Port 1
There is no specific
device variable for CJ-
series Unit to reference
the number of retries.
When you reference
the number of retries,
refer to bits 08 to 11 of
*_P1_TransErrSta.
*_P1_FCSErr
*_P1_CmdErr
*_P1_TimeoutErr
*_P1_OverRunErr
*_P1_FramingErr
*_P1_ParityErr
*1 The current settings for the port are read. For details on the contents that are read, refer to List of Device Variable for CJ-
series Unit for System Settings on page 2-16. If a System Settings error occurs, the default settings will be read.
*2 If any of the error bits 00 to 14 becomes TRUE in the Protocol Macro Mode but then communications are recovered within
the specified number of retries, the bit will be changed to FALSE. The bit will remain TRUE if recovery is not possible
within the specified number of retries.
*3 Used only with protocol macros. Not used with any other serial communications mode.
*4 Used with Protocol Macro or Serial Gateway Mode.
This bit is changed to TRUE if an error occurs in the transmission path with the Serial Gateway.
With Modbus-RTU Slave Mode, this bit is changed to TRUE if there is a CRC check error.
*5 Used with Protocol Macro or Serial Gateway Mode.
This bit is changed to TRUE if a send start timeout or response timeout occurs with the Serial Gateway.
*6 Not used with Loopback Test Mode. This bit also changes to TRUE if more than 259 bytes of unread data is stored in the
reception buffer during No-protocol Mode.
*7 Not used with Loopback Test Mode.
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
2 Initial Settings and Allocations of Device Variable for CJ-series Unit
Port 2
There is no specific Bit
device variable for CJ- string
series Unit to reference
the number of retries.
When you reference
the number of retries,
refer to bits 08 to 11 of
*_P2_TransErrSta.
*_P2_FCSErr BOOL
*_P2_CmdErr BOOL
*_P2_TimeoutErr BOOL
*_P2_OverRunErr BOOL
*_P2_FramingErr BOOL
*_P2_ParityErr BOOL
Type R/W Name
R Number of
Retries (*3)
R FCS Check
Error (*4)
R Command
Error (*3)
R Timeout Error
(*5)
R Overrun Error
(*6)
R Framing Error
(*7)
R Parity Error (*7) TRUE: Parity error
Function
Range: 0 to 9
TRUE: FCS check error
FALSE: FCS check nor-
mal
TRUE: Command error
FALSE: No command
error
TRUE: Timeout (protocol
macros: Tfs, Tfr, or Tr)
error or Serial Gateway
send/response timeout
FALSE: Normal
TRUE: Overrun error
FALSE: Normal
TRUE: Framing error
FALSE: Normal
FALSE: Normal
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