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 Organization Replaces Master-Slave with Client-Server
Last message by
pnachtwey
3
Replies
154
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Sandra
Is Modbus suitable for wall switch applications?
Last message by
Sandra
9
Replies
1K
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Jesper Landtved
Help with Changing ID and Baud on SDM120, EM23 and EM24
Last message by
David_2
1
Replies
293
Views
Vlike888
Multiple slaves to single master - Wiring connections
Last message by
Vlike888
2
Replies
265
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
545
Views
Y
Modbus Write command format
Last message by
David_2
7
Replies
442
Views
D
Dropping communication every few minutes to hours
Last message by
Dean
2
Replies
364
Views
W
Send message by modbus Tcp over internet.
Last message by
stevewrd123
1
Replies
529
Views
H
Slave ID
Last message by
David_2
3
Replies
422
Views
Raj@modbus
Issue in Modbus Multidrop communication over RS485 2 wire bus
Last message by
greg.potter
3
Replies
640
Views
R
IEEE754 Floating points in Tridium
Last message by
David_2
3
Replies
631
Views
R
Modbus to Android/iPhone/WiFi
Last message by
iotize
4
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3K
Views
C
Modbus RTU to Bluetooth
Last message by
iotize
4
Replies
3K
Views
M
Modbus RTU with a TPW 04 PLC
Last message by
momo1501
2
21
Replies
1K
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R
Modbus TCP communication between Yokogawa FCS centum VP R6 and WAGO 750-352 module.
Last message by
renansenaa
0
Replies
449
Views
M
Windows Modbus Reader
Last message by
David_2
1
Replies
617
Views
R
Modbus TCP Connection to Remote Virtual Server
Last message by
Lokky9mills
2
Replies
2K
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
826
Views
S
Modbus TCP/IP Communication Over Fibre Optic System
Last message by
Ingraham153
2
Replies
2K
Views
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