Modbus

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A community for the Modbus communications protocol - data communication between devices over TCP/IP and over serial line – open and royalty-free since 1979. Visit Modbus.org to download the Modbus protocol specification and implementation guides.
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Starting Element
Last message by
HPC
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Multibyte Length (Parser)
Last message by
HPC
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366
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Omni 6000 and GE WorkstationST
Last message by
ControlsGuy25
1
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362
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Conversion from IEC 60870-5-103 To Modbus
Last message by
Babaicool
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Communicate with Modbus RTU to EATON IQ100 power meter through Internet
Last message by
jschulze
3
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812
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Writing to a Holding Register Using Modbus Poll Master Software.
Last message by
David_2
5
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Daikin Modbus Cards EKFCCMBCB7
Last message by
David_2
8
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711
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nikoloz
Homebrewed software to communicate with measuring device via Modbus TCP
Last message by
sunnyygq
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73
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5K
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MODBUS TCP/IP on WINCC
Last message by
fixxxer_ki
1
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6K
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Combining RS485 with Wifi TCP/IP. Buy converter or ???
Last message by
patrickduis
5
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685
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Question : How I Send AO for a Setpoint Temperature With Modbus RTU
Last message by
Leonardojoseph
2
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569
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Vlike888
Difference in value on slave and master in Modbus over RS485
Last message by
Vlike888
2
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749
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Checksum error in one program but not another
Last message by
jschulze
3
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488
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Checksum error and Insufficient bytes recieved
Last message by
Vindsan
11
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1K
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CS31 to Rs485
Last message by
Alaateba
0
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395
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Modbus Function Code 5
Last message by
lsmadeux
2
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858
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Trying to integrate A/C system with home assistant
Last message by
daveymit
2
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671
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How to: slave addressing
Last message by
jschulze
9
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709
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Mylara-Effone
Invalid range error while modbus writing register value.
Last message by
jschulze
3
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548
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Modbus TCP/IP to SFTP Convertor
Last message by
patrickduis
2
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1K
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