Omron NX701-1620 User Manual

Appendix A
A-66
NJ/NX-series Database Connection CPU Units User’s Manual (W527)
Related System-defined Variables
Name
Meaning
Data type
Description
_EIP_EtnOnlineSta Online BOOL Status of the communications function of
the built-in EtherNet/IP port.
TRUE: Can be used.
FALSE: Cannot be used.
Related Error Codes
Error code
Meaning
Description
0406 hex Illegal Data Position Specified The DBConnectionName input variable is a text string consisting of NULL
characters (16#00) only.
0410 hex Text String Format Error 
A space character is included in the text string specified for the
DBConnectionName input variable.

The DBConnectionName input variable does not end in NULL.
041D hex Too Many Instructions Executed at
the Same Time
More than 32 DB Connection Instructions were executed at the same time.
3000 hex DB Connection Service not Started The instruction was executed when the DB Connection Service was not running.
3002 hex DB Connection Service Shutdown or
Shutting Down
The instruction was executed after the DB Connection Service was shut down or
while the DB Connection Service was being shut down.
3003 hex Invalid DB Connection Name The DB Connection name specified in the DBConnectionName input variable is
not set in any DB Connection Settings.
3013 hex DB Connection Service Error Stop The instruction was executed while the DB Connection Service was stopped due
to an error.
3015 hex DB Connection Service Initializing The instruction was executed while the initialization processing of the DB
Connection Service was in progress.
Function
This instruction is used to get the status of the DB Connection specified in the DBConnection input variable. The
current status is output to the ConnectionStatus output variable.
Refer to the ■ ServiceStatus of A-1-2 Variables Used in the DB Connection Instructions for the status.
Refer to Section B-2-3 How to Measure DB Response Time for the measurement of the DB response time.
Precautions for Correct Use
 Execution of this instruction is continued until processing is completed even if the value of Execute changes to
FALSE or the execution time exceeds the task period. The value of Done changes to TRUE when processing
is completed. Use this to confirm normal completion of processing.
 Refer to Using this Section of the NJ/NX-series Instructions Reference Manual (Cat. No. W502) for a timing
chart for Execute, Done, Busy, and Error.
 This instruction cannot be used on an event task. A compiling error will occur.
 If you execute this instruction before completion of a DB_Connect instruction and confirm that the connection
status of the DB Connection is Connected, an instruction error (Invalid DB Connection) may occur when you
execute the next DB Connection Instruction. When you use the DBConnection output variable from the
DB_Connect instruction, confirm that the Done output variable of the DB_Connect instruction is TRUE or the
value of the DBConnection output variable is not 16#00000000 before executing the DB Connection
Instruction.
 An error occurs for this instruction in the following cases. Error will be TRUE.
 When the instruction was executed when the DB Connection Service was not running
 When the instruction was executed while the initialization processing of the DB Connection Service
was in progress

Omron NX701-1620 Specifications

General

Brand	Omron
Model	NX701-1620
Category	Controller
Language	English