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.
Sandra
Is Modbus suitable for wall switch applications?
Last message by
brofessor485
10
Replies
2K
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I
Communication problems , modbus timeout error
Last message by
David_2
3
Replies
2K
Views
Jesper Landtved
Help with Changing ID and Baud on SDM120, EM23 and EM24
Last message by
David_2
1
Replies
938
Views
Vlike888
Multiple server to single client - Wiring connections
Last message by
Vlike888
2
Replies
817
Views
P
MODBUS RTU Slave Address Unknown
Last message by
patrickduis
8
Replies
2K
Views
R
How to know Modbus Slave is still receiving values
Last message by
patrickduis
4
Replies
1K
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Y
Modbus Write command format
Last message by
David_2
7
Replies
1K
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D
Dropping communication every few minutes to hours
Last message by
Dean
2
Replies
620
Views
W
Send message by modbus Tcp over internet.
Last message by
stevewrd123
1
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1K
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H
Slave ID
Last message by
David_2
3
Replies
765
Views
Raj@modbus
Issue in Modbus Multidrop communication over RS485 2 wire bus
Last message by
greg.potter
3
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1K
Views
R
IEEE754 Floating points in Tridium
Last message by
David_2
3
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1K
Views
R
Modbus to Android/iPhone/WiFi
Last message by
iotize
4
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4K
Views
C
Modbus RTU to Bluetooth
Last message by
iotize
4
Replies
4K
Views
M
Modbus RTU with a TPW 04 PLC
Last message by
momo1501
2
21
Replies
2K
Views
R
Modbus TCP communication between Yokogawa FCS centum VP R6 and WAGO 750-352 module.
Last message by
renansenaa
0
Replies
813
Views
M
Windows Modbus Reader
Last message by
David_2
1
Replies
941
Views
chanelelhifnawy
Connect Serial Modbus devices to Cloud or On-premises
Last message by
chanelelhifnawy
3
Replies
1K
Views
J
Communication problem with Kepserverex to Meter Computer Floboss s600+
Last message by
David_2
1
Replies
1K
Views
S
Modbus TCP/IP Communication Over Fibre Optic System
Last message by
Ingraham153
2
Replies
2K
Views
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