APPENDICES
Appendix 4 Comparison with the MELSECNET/H Board
Appendix 4.4 Precautions for replacing programs
App
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DEVICE MONIT
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MELS
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PROGRAMMING
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AP
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FUNCT
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PENDICES
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INDEX
Appendix 4.4 Precautions for replacing programs
The following table explains modifications required when utilizing MELSECNET/H user
programs.
Appendix 4.5 Precautions for setting parameters
The following describes precautions when utilizing MELSECNET/H parameter settings.
Item
Description
Channel No.
A modification of the argument for opening a communication line
(mdOpen) is required since the channel numbers are changed from 51
to 54 to 151 to 154.
Own board access
Change the read data contents of own board mode setting
(mdBdModSet), own board mode read (mdBdModRead), own board
LED read (mdBdLedRead), own board switch status read
(mdBdSwRead), and own board version read (mdBdVerRead).
Item
Description
Low-speed cyclic
transmission
The CC-Link IE Controller Network board does not have this function.
Assign the low-speed cyclic transmission range to the LB/LW setting (2).
Multiplex transmission
The CC-Link IE Controller Network board does not have this function.
The high-speed communication can be realized without using the multiplex
transmission function on the CC-Link IE Controller Network board since
the link scan time is shorter than that of the MELSECNET/H board.
Reserved station
specification
When a station that is specified as a reserved station exists in the network,
the transient transmission can be performed to the relevant station.
Therefore, the following functions can be performed to the relevant station.
• Checking the error description with the CC-Link IE Controller Network
diagnostics function
• Writing parameters from another station when incorrect parameters are
set
• Monitoring other stations using GX Developer
• Link dedicated instruction
When disconnecting a station that is specified as a reserved station from
the network, set the mode of the relevant station to "Offline".
Link points
For link points per network and link points per station, set the link points
within the range of CC-Link IE Controller Network board specifications.
(
