Omron NX701-1620

CONTENTS
10
NJ/NX-series Database Connection CPU Units User’s Manual (W527)
DB_Select (Retrieve DB Record) ............................................................................. A-34
DB_Delete (Delete DB Record) ................................................................................ A-39
DB_ControlService (Control DB Connection Service) ............................................................. A-54
DB_GetServiceStatus (Get DB Connection Service Status) ..................................................... A-60
DB_GetConnectionStatus (Get DB Connection Status) .......................................................... A-65
DB_ControlSpool (Resend/Clear Spool Data) ................................................................. A-71
DB_PutLog (Record Operation Log) ........................................................................ A-78
DB_Shutdown (Shutdown DB Connection Service) ............................................................... A-84
Appendix B ........................................................................................................... B-1
B-1 Task Design Procedure ................................................................................ B-2
B-1-1 Startup Time of DB Connection Service .......................................... B-2
B-1-2 Reference Values for Execution Time of DB Connection Instructions ................ B-4
B-1-3 How to Measure Execution Time of DB Connection Instructions .... B-7
B-1-4 Guideline for System Service Execution Time Ratio ....................... B-8
B-1-5 Checking the System Service Execution Time Ratio ...................... B-9
B-2 Execution Time of DB Connection Instructions ........................................................ B-11
B-2-1 Restrictions to Execution Time of DB Connection Instructions ..... B-11
B-2-2 Impact of Operation Log Recording on Execution Time of DB
Connection Instructions ................................................................. B-17
B-2-3 How to Measure DB Response Time ............................................ B-18
B-2-4 Ensuring Equipment Performance (Takt Time) by Monitoring
Instruction Execution Timeout ....................................................... B-19
B-3 Specifications ............................................................................................. B-20
B-3-1 General Specifications ................................................................... B-20
B-3-2 Performance Specifications ........................................................... B-20
B-3-3 Function Specifications .................................................................. B-20
B-4 Version Information .................................................................................... B-21
B-4-1 Unit Versions and Corresponding DB Connection Service
Versions ......................................................................................... B-21
B-4-2 DB Connection Functions That Were Added or Changed for Each Unit Version B-21
B-4-3 Actual Unit Version of CPU Unit and Unit Version Set in the
Sysmac Studio Project ................................................................... B-22
Index