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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Two Modbus Slave with same Station Number
Last message by
PBR
5
Replies
2K
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A
Modbus registers
Last message by
David_2
16
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1K
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F
Denso Robot Modbus Implementation
Last message by
DMRobers
1
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1K
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S
Sunspec standard through basic modbus communication
Last message by
ControlsGuy25
4
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327
Views
R
Response time requirement for Modbus RTU Master
Last message by
Mkekkonen
5
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722
Views
M
Read 2 devices with the Same Address
Last message by
David_2
10
Replies
268
Views
M
Gree VRF Modbus
Last message by
ControlsGuy25
8
Replies
421
Views
M
Bently Nevada 3300 Modbus Communications
Last message by
ControlsGuy25
4
Replies
544
Views
Q
Wonderware to Daniel 2500 FC Modbus Comm issue.
Last message by
QuasWexExort
4
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414
Views
L
MODBUS RS485 Node Limit
Last message by
Edemilso Ilha
11
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8K
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S
Exchanging alarm states with modbus
Last message by
Searme
12
Replies
544
Views
Advaith
Establishing Modbus TCP communication
Last message by
David_2
12
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3K
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P
Modbus Communication between EATON Power Meter and Accuenergy Data Acquisition Server
Last message by
David_2
2
22
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606
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BurhanSpeaks
DTM browser on Schneider M-580 not reading more than one request.
Last message by
ControlsGuy25
3
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444
Views
D
Modbus RS485 to CAN configuration
Last message by
ControlsGuy25
2
28
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1K
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M
Modbus communication between a Delta PLC and a C# program
Last message by
ControlsGuy25
2
Replies
2K
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H
modbus communication error
Last message by
jschulze
11
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1K
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C
Modbus TCP/IP on Ethernet Cable Maximum Distance
Last message by
NetworkMan
2
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2K
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H
Modbus Devices
Last message by
NetworkMan
3
Replies
938
Views
D
Why is there no safe communication protocol (SIL 2/3) for Modbus?
Last message by
NetworkMan
2
Replies
1K
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