Appendices; Appendix 1 Function Processing Time - Mitsubishi MELSEC-Q Series User Manual

APPENDICES

APPENDICES

Appendix 1 Function Processing Time

The following explains how long function processing takes when a single user program
using bus interface functions or MELSEC data link functions is executed at the task priority
setting of 100.
(1) Bus interface function processing time
POINT
The processing times of the bus interface functions and MELSEC data link
functions varies in some degree depending on the operation conditions of the OS,
the execution conditions of the user program, the mounting position on the base
unit, and the types of the modules mounted on the base unit.
The access times in the following tables are reference values for each function
processing time.
(a) I/O access time
1) When accessing the input module QX42 (Input No.: Starting from X0) in a
single CPU system configuration
Function name
Communication size
High-speed
Processing
access
time
Normal access
2) When accessing the output module QY42P (Output No.: Starting from Y0) in a
single CPU system configuration
Function name
Communication size
High-speed
Processing
access
time
Normal access
Table App.1 Access time
QBF_X_In_BitEx
1 word 1 word
10 s 11 s
14 s 13 s
Table App.2 Access time
QBF_Y_Out_BitEX
1 word 1 word
10 s 10 s
12 s 12 s
Appendix 1 Function Processing Time
QBF_X_In_WordEx
16 words 64 words
30 s 88 s
33 s 97 s
QBF_Y_Out_WordEx
16 words 64 words
28 s 83 s
31 s 93 s
App
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