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1 COMMON ITEMS
1.3 MELSEC Data Link Functions
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Accessible devices
The devices accessible for communication via a MELSECNET/H network module are shown below.
• 'Batch' and 'Random' in the following table indicate as follows:
Batch: Batch write (mdSendEx function), batch read (mdReceiveEx function)
Random: Random write (mdRandWEx function), random read (mdRandREx function), bit set (mdDevSetEx
function), bit reset (mdDevRstEx function), random write by using a label name (mdRandWLabelEx
function), random read by using a label name (mdRandRLabelEx function)
• Bit devices can be accessed by using 'bit set' (mdDevSetEx function) and 'bit reset' (mdDevRstEx function).
• Device extension specifications (digit specification, bit specification and index specification) cannot be used.
• Accessing the own station
The accessible devices when accessing the MELSECNET/H network module controlled by C Controller module are shown in
the following table.
: Accessible,
: Not accessible
For details on replacement from the device types specified with an existing product, refer to the following section.
Page 190 Replacement of device type
<For other than the RECV function>
To access a MELSECNET/H network module controlled by a C Controller module, use the methods explained in the following
section. Accessing the own station by using MELSECNET/H network communication will result in the station number/network
number error.
Page 190 Replacement of device type
Device
Access method
Access target CPU
R12CCPU-V
RECV function
Batch
Random
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