Mitsubishi Electric MELSEC iQ-R C R12CCPU-V, Руководство пользователя

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5 ACCESS FUNCTION USING NETWORK MODULE
5.2 Cyclic Transmission
Buffer memory access
This method is used to access the buffer memory of a network module from a user program.
Data flow
The following figure shows the data flow to access buffer memory of a network module.
■
User program functions
The following shows the functions used to access buffer memory of a network module.
■ Link devices specified with a function (buffer memory)
The following link devices are assigned to each specific address in the buffer memory.
In the dedicated function library, specify the device type with the device name defined for each function.
When using a C Controller module dedicated function, specify the offset of the buffer memory.
For details of buffer memory addresses for each link device, refer to the user's manual of the network module used.
Dedicated function library Description
CCPU_ToBuf To write data to the CPU buffer memory and intelligent function module buffer memory in the module on the specified
module position.
CCPU_ToBuf_ISR
CCPU_FromBuf To read data from the CPU buffer memory and intelligent function module buffer memory in the module on the specified
module position.
CCPU_FromBuf_ISR
Link device C Controller module dedicated function
Remote input RX Dev_SPB
Remote output RY
Remote register RWw
RWr
Link special relay SB
Link special register SW
C Controller module Network module Network module
User program
Link
device
Link
scan
Link
device
Buffer memory access
Buffer
memory