Appendices
A-62
NJ-series CPU Unit Software User’s Manual (W501)
Functional Classification: I/O Bus Errors
Variable name _CJB_ErrSta
Meaning I/O Bus Error Status Global/local Global
Function Gives the I/O bus error status.
Note Do not use this variable in the user program. There may be a delay in updating it and concurrency prob-
lems may occur. Use this variable only to access status through communications from an external device.
Refer to A-3-7 Meanings of Error Status Bits for the meanings of the error status bits.
Data type WORD Range of values 16#0000 to 16#00F0
R/W access R Retained Not retained. Network Publish Published.
Usage in user program Not possible. Related instruc-
tions
You can access this variable from the user program only with the following
instruction.
• GetCJBError
You can use the following instruction to clear this variable.
• ResetCJBError
Variable name _CJB_MstrErrSta
Meaning I/O Bus Master Error Status Global/local Global
Function Gives the I/O bus master error status.
Note Do not use this variable in the user program. There may be a delay in updating it and concurrency prob-
lems may occur. Use these variables only to access status through communications from an external
device. Refer to A-3-7 Meanings of Error Status Bits for the meanings of the error status bits.
Data type WORD Range of values 16#0000 to 16#00F0
R/W access R Retained Not retained. Network Publish Published.
Usage in user program Not possible. Related instruc-
tions
You can access this variable from the user program only with the following
instruction.
• GetCJBError
You can use the following instruction to clear this variable.
• ResetCJBError
Variable name _CJB_UnitErrSta
Meaning I/O Bus Unit Error Status Global/local Global
Function Gives the error status of the I/O Bus Unit.
Note Do not use this variable in the user program. There may be a delay in updating it and concurrency prob-
lems may occur. Use this variable only to access status through communications from an external device.
Refer to A-3-7 Meanings of Error Status Bits for the meanings of the error status bits.
Data type ARRAY [0..3, 0..9] OF WORD Range of values 16#0000 to 16#80F0
R/W access R Retained Not retained. Network Publish Published.
Usage in user program Not possible. Related instruc-
tions
You can access this variable from the user program only with the following
instruction.
• GetCJBError
You can clear this variable with the following instruction.
• ResetCJBError
Variable name _CJB_InRespTm
Meaning Basic Input Unit Input Response Times Global/local Global
Function Contains the response times of the Basic I/O Units.
Data type ARRAY [0..3, 0..9] OF UINT Range of values 0 to 320
R/W access R Retained Not retained. Network Publish Published.
Usage in user program Possible. Related instruc-
tions
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