Mitsubishi Electric MELSEC-Q/L - Page 492

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7 APPLICATION INSTRUCTIONS
7.6 Structure Creation Instructions
The following processing is also performed during service processing.
• Monitor processing of other station
• Read of another intelligent function module buffer memory by the serial communication module
• All the processing items except I/O refresh are performed when SM775 is turned OFF.
• Selecting a processing item
[QCPU]
Ex.
To make only the send/receive processing with the remote I/O station faster, designate MELSECNET/H refresh only. (Set only
b2 and b15 of SD778 to 1 (SD778: 8004H).)
• Select a processing item in SD778 and turn ON SM775. The following table shows processing that can be specified in SD778 when SM775 is turned ON.
Processing item QCPU LCPU
When SM775 is
OFF
When SM775 is
ON
When SM775 is
ON
When SM775 is
ON
I/O refresh Not executed Whether to be
executed or not can
be selected.
Not executed Whether to be
executed or not can
be selected.
CC-Link refresh Executed Executed
CC-Link IE Controller Network refresh 
CC-Link IE Field Network refresh Executed Whether to be
executed or not can
be selected.
CC-Link IE Field Network Basic refresh
MELSECNET/H refresh 
Auto refresh of intelligent function modules Executed Whether to be
executed or not can
be selected.
Auto refresh using QCPU standard area of multiple CPU
system

Reading input/output data of all modules other than the
multiple CPU system group

Auto refresh using the multiple CPU high speed
transmission area of multiple CPU system

Communication with display unit Executed Whether to be
executed or not can
be selected.
Service processing (communication with programming
tool, GOT, or other external devices)
Executed Whether to be
executed or not can
be selected.
• Set an execution status for each processing in SD778. Set an execution status for each bit of SD778 as shown below.
Bit of SD778 Executed Not executed
b0 to b6, b13 1 0
b15 0 1
(1) b0: I/O refresh
(2) b1: CC-Link refresh
(3) b2: CC-Link IE Controller Network, MELSECNET/H refresh
(4) b3: Auto refresh of intelligent function module
(5) b4: Auto refresh using QCPU standard area of multiple CPU system, reading inputs/outputs from the outside of the multiple CPU system group
(6) b5: Auto refresh using the multiple CPU high speed transmission area of multiple CPU system
(7) b6: CC-Link IE Field Network refresh
(8) b13: CC-Link IE Field Network Basic refresh
(9) b15: Service processing (communication with programming tool, GOT, or other external devices)
b15
b0
b1b2
b3
b4b5b6b7b14
...
1/0 1/01/01/01/01/01/001/0 0
b13 b12
1/0
SD778
(1)(2)(3)(4)(5)(6)(7)(8)(9)