Plc Function Module, Category Name: _Cjb; A-7-3 Plc Function Module, Category Name - Omron NJ501-1 Series User Manual

Appendices
A-7-3

PLC Function Module, Category Name: _CJB

 Functional Classification: I/O Bus Status
Variable name _CJB_MaxRackNo
Meaning Largest Rack Number
Function Contains the largest rack number of the Expansion Racks that are detected by the Controller.
Data type UINT
R/W access R
Usage in user program Possible.
Variable name _CJB_MaxSlotNo
Meaning Largest Slot Number
Function Contains one higher than the largest slot number with a CJ-series Unit on each of the Racks that are detected by
the Controller.
Data type ARRAY [0..3] OF UINT
R/W access R
Usage in user program Possible.
 Functional Classification: I/O Bus Errors
Variable name _CJB_ErrSta
Meaning I/O Bus Error Status
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-
Data type WORD
R/W access R
Usage in user program Not possible.
Variable name _CJB_MstrErrSta
Meaning I/O Bus Master Error Status
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-
Data type WORD
R/W access R
Usage in user program Not possible.
A-120
Retained
Related instruc-
tions
Retained
Related instruc-
tions
lems may occur. Use this variable only to access status through communications from an external device.
Refer to A-6-4 Meanings of Error Status Bits for the meanings of the error status bits.
Retained Not retained.
Related instruc- You can access this variable from the user program only with the following
tions instruction.
• GetCJBError
You can use the following instruction to clear this variable.
• ResetCJBError
lems may occur. Use these variables only to access status through communications from an external
device. Refer to A-6-4 Meanings of Error Status Bits for the meanings of the error status bits.
Retained Not retained.
Related instruc- You can access this variable from the user program only with the following
tions instruction.
• GetCJBError
You can use the following instruction to clear this variable.
• ResetCJBError
Global/local
Range of values
Not retained. Network Publish
---
Global/local
Range of values
Not retained. Network Publish
---
Global/local
Range of values
Network Publish
Global/local
Range of values
Network Publish
NJ-series CPU Unit Hardware User's Manual (W500)
Global
0 to 3
0: Only CPU Rack.
Published.
Global
0 to 10
0: No CJ-series Unit mounted.
Published.
Global
16#0000 to 16#00F0
Published.
Global
16#0000 to 16#00F0
Published.