APPX
Appendix 9 Processing Time
923
A
Processing time of the CPU module database access (from external device) function
The table below lists the processing time under the following conditions:
The following table lists the processing time until the database operation is completed with the CPU module database access
function.
Process control function processing time
The process control function processing time is the time required to process the control loop when the process control
function is executed. The following table lists the processing time of some control loop examples.
For the processing time of each process control instruction, refer to the following.
MELSEC iQ-R Programming Manual (Process Control Function Blocks/Instructions)
Condition 1 Condition 2
• Number of records: 10000
• Number of fields: 16
The data type of the field is specified as WORD (6 fields), DOUBLE
PRECISION (6 fields), NLSCHAR(UNICODE) [124 characters] (3 fields),
and BOOLEAN (1 field).
• Main key: Provided
• Functions that require access to files in the SD memory card except for the
CPU module database access function are not active.
• Number of records: 10000
• Number of fields: 64
The data type of the field is specified as WORD (20 fields), DOUBLE
PRECISION (20 fields), NLSCHAR(UNICODE) [124 characters] (6 fields),
and BOOLEAN (18 fields).
• Main key: Provided
• Functions that require access to files in the SD memory card except for the
CPU module database access function are not active.
Item Time until the operation is
completed
Condition 1 Condition 2
Connect to the database of the CPU module from the application (Microsoft Access). 5s
Select a record in the database of the CPU module from the application (Excel). (SELECT) 3s 3s
Insert 1000 records in the database of the CPU module from the application (Microsoft Access). (INSERT) 230s 330s
Update a record in the database of the CPU module from the application (Microsoft Access). (UPDATE) 1s 1s
Delete a record in the database of the CPU module from the application (Microsoft Access). (DELETE) 1s 1s
Loop type Configuration Processing time
Two-degree-of-freedom PID control
(S2PID)
S.IN, S.PHPL, S.2PID, and S.OUT1 instructions 160s
PID control (SPID) S.IN, S.PHPL, S.PID, and S.OUT1 instructions 151s
Monitor (SMON) S.IN and S.PHPL instructions 73s