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3 Data Exchange with the CPU Unit
3-20
CJ-series PROFIBUS Slave Unit Operation Manual for NJ-series CPU Unit (W510)
3-7
Device Variables for CJ-series Unit
(Configuration)
The CJ1W-PRT21 provides 8 consecutive DM words to indicate configuration and parameterisation
data received from the PROFIBUS-DP master unit. These words are not part of the cyclic refresh, but
the unit writes this information to the Host CPU when the data in the unit changes. At power-on, or at a
reset of the unit, all data will be set to 0. The DM words are in the area assigned to the Special I/O unit,
depending on the Machine No (see section
Name of Device Variable for CJ-
series Unit
Type
R/W
Description
*_SlvParamSta
DWORD
R
Slave parameter data (see section
)
*_SlvMstrAdr
USINT
R
Bits 00-07: Master address
*_SlvGrp1
BOOL
R
Bit 08: Slave assigned to Group 1
*_SlvGrp2
BOOL
R
Bit 09: Slave assigned to Group 2
*_SlvGrp3
BOOL
R
Bit 10: Slave assigned to Group 3
*_SlvGrp4
BOOL
R
Bit 11: Slave assigned to Group 4
*_SlvGrp5
BOOL
R
Bit 12: Slave assigned to Group 5
*_SlvGrp6
BOOL
R
Bit 13: Slave assigned to Group 6
*_SlvGrp7
BOOL
R
Bit 14: Slave assigned to Group 7
*_SlvGrp8
BOOL
R
Bit 15: Slave assigned to Group 8
*_SlvWdtFact1
USINT
R
Bits 00 to 07: Watchdog factor 1
*_SlvWdtFact2
USINT
R
Bits 08 to 15: Watchdog factor 2
*_SlvOutSta
LWORD
R
Slave Output Data (see section
*_SlvOutAreaCode
USINT
R
Bits 00 to 07: Output area code
*_SlvOutHoldBusErr
BOOL
R
Bit 08: Data hold on PROFIBUS fail
*_SlvOutIntelMd
BOOL
R
Bit 12: Outputs Intel mode
*_SlvOutStartAdr
UINT
R
Output start address
*_SlvOutDatLen
UINT
R
Output data length
*_SlvInSta
LWORD
R
Slave Input Settings (see section
*_SlvInAreaCode
USINT
R
Bits 00 to 07: Input area code
*_SlvInProgCont
BOOL
R
Bit 08: Continue in PROGRAM mode
*_SlvInProgExit
BOOL
R
Bit 09: Exit in PROGRAM mode
*_SlvInFatlCont
BOOL
R
Bit 10: Continue on fatal error
*_SlvInFatlExit
BOOL
R
Bit 11: Exit on fatal error
*_SlvInIntelMd
BOOL
R
Bit 12: Inputs Intel mode
*_SlvInclPLCSta
BOOL
R
Bit 15: Include PLC status in input data
*_SlvInStartAdr
UINT
R
Input start address
*_SlvInDatLen
UINT
R
Input data length