Mitsubishi Electric MELIPC MI5000 Series User Manual page 47

Access to link devices
Direct access from a user program to link devices (RX, RY, RWr, RWw, SB, and SW) of this product is possible.
Access method
Use C Controller module dedicated functions and MELSEC data link functions to access link devices.
■Function list
Objective
Writing data to device
Writing data to device
(During interrupt)
Reading data from device
Reading data from device
(During interrupt)
For details on the C Controller module dedicated functions and MELSEC data link functions, refer to the following manual.
MELIPC MI5000 Series Programming Manual (Windows)
MELIPC MI5000 Series Programming Manual (VxWorks)
Precautions
■Assurance of cyclic data
Use assurance of cyclic data (block data assurance per station) to assure cyclic data. ( Page 46 Block data assurance per
station)
Furthermore, access the link device that underwent data assurance to assure cyclic data that was read or written by a user
program. ( Page 47 Access to guaranteed linked devices)
■Assignment of link devices
If multiple network ranges are assigned during the assignment of link devices, and there is an empty range in the network
range assignment, do not change the values of link devices in the empty range. If the values of link devices in the empty
range are changed, local stations and other systems may malfunction. When accessing link devices, access devices in the
assigned range of the network range.
Function name
CCPU_WriteLinkDevice
mdDevRstEx
mdDevSetEx
mdRandWEx
mdSendEx
CCPU_WriteLinkDevice_ISR
CCPU_ReadLinkDevice
mdRandREx
mdReceiveEx
CCPU_ReadLinkDevice_ISR
Description
Writes data to link devices of CC-Link IE Field Network.
Resets bit devices.
Sets bit devices.
Writes data by specifying a device type and a range to be written.
Writes data to devices in a batch.
Writes data to link devices of CC-Link IE Field Network.
Reads data from link devices of CC-Link IE Field Network.
Reads data by specifying a device type and a range to be read.
Reads data from devices in a batch.
Reads data from link devices of CC-Link IE Field Network.
6 CC-Link IE Field Network FUNCTION
6.1 Cyclic Transmission
6
45