Mitsubishi Electric MELSEC iQ-R C R12CCPU-V, User Manual

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5 ACCESS FUNCTION USING NETWORK MODULE
5.2 Cyclic Transmission
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Direct access
This method is used for direct access to link devices in a network module from a user program.
Data flow
The following figure shows the data flow for direct access to link devices of a network module.
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User program functions
The following shows the functions used for direct access to network module link devices.
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Link devices specified with a function
Devices corresponding to each link device which can be specified with a function are shown below.
In the dedicated function library, specify the device type with the device name defined for each function.
Dedicated function library Description
CCPU_WriteLinkDevice To write data to link devices of a network module directly.
CCPU_ReadLinkDevice To read data from link devices of a network module directly.
Link device C Controller module dedicated function
Link input LX Dev_LX
Link output LY Dev_LY
Link relay LB Dev_LB
Link register LW Dev_LW
Remote input RX Dev_LX
Remote output RY Dev_LY
Remote register RWw Dev_LW
RWr Dev_LW
Link special relay SB Dev_LSB
Link special register SW Dev_LSW
C Controller module Network module Network module
User program
Link
device
Link
device
Link
scan
Direct access