Appendix 10Processing Time Of Functions - Mitsubishi Electric MELSEC iQ-R C R12CCPU-V User Manual

Appendix 10
This section explains the time required for processing a function of dedicated function library used in user program, which is
executed with the task priority set to 100.
For the specifications of the dedicated function library, refer to the following manual.
MELSEC iQ-R C Controller Module Programming Manual
The processing time of each dedicated function library vary depending on the operation status of the
operating system, execution status of a user program, and module configuration of the C Controller module
system.
Refer to the following processing time of each function as a guide.
C Controller module dedicated functions
I/O access time
When accessing an input module RX42C4 (input number: X0 and higher) in a single CPU system configuration
Function name
CCPU_X_In_WordEx
Buffer memory access time
When accessing a CC-Link module RJ61BT11 (input number: X0 and higher) in a single CPU system configuration
Function name
CCPU_FromBuf
CCPU_ToBuf
CPU buffer memory access time
When accessing the buffer memory of the host CPU in a multiple CPU system configuration (CPU No.1: R120CPU, CPU
No.2: C Controller module)
Function name
CCPU_FromBuf
CCPU_ToBuf
APPX
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Appendix 10 Processing Time of Functions
Processing Time of Functions
Access size
High 1 word
speed
16 words
64 words
Normal 1 word
16 words
64 words
Access size
1 word
64 words
512 words
1 word
64 words
512 words
Access size
1 word
64 words
512 words
1 word
64 words
512 words
Access time
18 μs
19 μs
32 μs
18 μs
19 μs
32 μs
Access time
19 μs
25 μs
56 μs
17 μs
18 μs
29 μs
Access time
10 μs
15 μs
44 μs
10 μs
14 μs
21 μs