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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Modbus TCP/IP comunicazione via LAN
Last message by
apa
1
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Janitza digital input readout
Last message by
phil2127
2
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375
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Invalid exception response? inepro PRO1-Mod
Last message by
jschulze
3
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286
Views
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Siemens - Wago modbus comms
Last message by
lapgoch
1
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508
Views
mercator
Handle invalid object id request for a read device identification request
Last message by
mercator
4
Replies
328
Views
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Modbus RTU EuroAir 250
Last message by
jschulze
7
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584
Views
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Modbus to GE Fanuc Series Six
Last message by
Pankaj Kumar
2
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770
Views
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Modicon Modbus Protocol Guide (PI-MBUS-300) RTU CRC calculation description correction
Last message by
NigelH
2
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620
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Connect a Delta HMI to WAGO 750-653 via ModBus
Last message by
Jonathan
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3K
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modbus rtu to moxa mgate mb3180 rs485 2 wire
Last message by
jschulze
1
Replies
540
Views
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Sunamp Heat Battery and ModBus
Last message by
Billwish
9
Replies
463
Views
h_mahmoudian
How can find register address of slave device with modbus poll
Last message by
emreaknc
6
Replies
994
Views
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Identify what protocol this Honeywell UDC330B is talking over and how do I talk to it?
Last message by
jschulze
2
23
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1K
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1miket1
ControlWave Micro Modbus bad data?
Last message by
David_2
1
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370
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HMI Modbus TCP/IP Device Communication
Last message by
jschulze
7
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2K
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Modbus TCP comms between Eurotherm controllers and GE IC695ETM001 module (RX3I)
Last message by
David_2
2
Replies
608
Views
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Communication issue Intouch - Schneider M580
Last message by
seatocl
2
Replies
602
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Modbus RTU to TCP/IP
Last message by
kris
12
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2K
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Question about ModBus slave addresses
Last message by
Maik Staberock
8
Replies
1K
Views
patrickduis
Excellent explanation on how Modbus works
Last message by
patrickduis
0
Replies
992
Views
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