Omron NX701-1620 - Db_Shutdown (Shutdown DB Connection Service

Appendix A
A-84
NJ/NX-series Database Connection CPU Units User’s Manual (W527)
DB_Shutdown (Shutdown DB Connection Service)
The DB_Shutdown instruction shuts down the DB Connection Service so as to prevent losing the
Operation Log data.
Instruction
Name
FB/FUN
Graphic expression
ST expression
DB_Shutdown Shutdown DB
Connection
Service
FB
DB_Shutdown_instance (Execute,
Done, Busy, Error, ErrorID);
Note The DB_Shutdown_instance is an instance of DB_Shutdown instruction, which is declared as a variable.
Variables
Input Variables
Name
Meaning
Data type
Valid range
Unit
Default
Description
Execute Execute BOOL TRUE or FALSE --- FALSE Specify the execution
condition.
Output Variables
Name
Meaning
Data type
Valid range
Unit
Description
Done Done BOOL TRUE or
FALSE
--- TRUE when the instruction is normally
completed.
Busy Executing BOOL TRUE or
FALSE
--- TRUE when the instruction is being executed.
Error Error BOOL TRUE or
FALSE
--- TRUE when the instruction is terminated due to
an error.
ErrorID Error Code WORD 16#0000 to
16#FFFF
--- Contains the error code when an error occurs.
Related System-defined Variables
System-defined
variables
Name Data type Valid range Description
_DBC_Status.Run DB Connection
Service Running
Status
BOOL TRUE or FALSE This variable changes to FALSE when this
instruction is executed.
_DBC_Status.Test DB Connection
Service Test Mode
Status
BOOL TRUE or FALSE This variable changes to FALSE when this
instruction is executed.
_DBC_Status.Shutdown DB Connection
Service Shutdown
Status
BOOL TRUE or FALSE This variable changes to TRUE when this
instruction is executed.
DB_Shutdown
Busy
Execute
Done
Error
ErrorID
DB_Shutdown_instance