Omron CJ1W-DRM21 Operation Manual page 102

3 Data Exchange with the CPU Unit
The following device variables for CJ-series Unit are used to reference individual information.
Name of device variables for
CJ-series Unit
*_UnitErr
*_MstrFunErr
3-26
Type R/W Area
BOOL R Unit Error
BOOL R Master
Function
Error
CJ-series DeviceNet Units Operation Manual for NJ-series CPU Unit(W497)
Function
<Operation specifications>
TRUE:
Displays DeviceNet Unit operating errors.
*_UnitErr (Unit Error) changes to TRUE if
any bit from 01 to 15 in *_Unit1Sta (Unit
Status 1) is TRUE (OR information of bits
01 to 15).
Usage example: When you write the pro-
gram for remote I/O communications, use
this bit as an N.C. input condition to con-
trol slave I/O processing.
FALSE:
Indicates that the error did not occur. Or,
changes to FALSE when the error is
cleared.
Default: FALSE
<Operation specifications>
TRUE:
Indicates that at least one master error
occurred. Refer to *_Mstr1Sta (Master
Status 1).
The master errors are as follows:
• *_Mstr1VefyErr (Verification Error)
• *_Mstr1StruErr (Structure Error)
• *_Mstr1IOErr (Remote I/O Communica-
tion Error)
• *_Mstr1SListErr (Invalid Scan List Data
Error)
• *_Mstr1IORefErr (Master I/O Refresh
Error)
FALSE:
Indicates that none of above errors
occured. Or, changes to FALSE when all
of above errors are cleared.
Default: FALSE