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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FC51 Danfoss VFD MODBUS
Last message by
flotech
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21
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Modbus Write command format
Last message by
ptewari75
2
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671
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ModBUS TCP/IP Issue - Multiple Connections
Last message by
ptewari75
2
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1K
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Mark VIe HMI Honeywell DCS modbus TCP/IP
Last message by
sk1984
0
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113
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communication from catams tokyo keiso to data historian
Last message by
bennymda
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312
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Modbus TCP to Triconex Emulator
Last message by
ee.bb
2
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725
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Jean
Modbus protocol C library. How can the slave/server change the registers?
Last message by
Jean
1
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344
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modbus FC 15 versus FC 5
Last message by
mercator
2
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461
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Integrating a non-Modbus system with a Modbus BMS
Last message by
[email protected]
0
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318
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ashish
Modbus poll OLE automation for 3 slaves
Last message by
ashish
0
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356
Views
ripahoratiu
Several slaves, each with it's own Modbus master
Last message by
ripahoratiu
2
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434
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Connect Variable Frequency Drive Directly to PC
Last message by
David_2
3
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581
Views
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Modbus MARK VI HMI Communication
Last message by
Osmund88
3
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779
Views
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Register Converter
Last message by
YOSHI635
2
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557
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Modbus TCP security comformance test tool
Last message by
KS_HSU
0
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470
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psztoch
Read Device Identification (43/13) and Object Id for serial number
Last message by
psztoch
0
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353
Views
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Modbus Rtu to Modbus Tcp convertion !
Last message by
Lokky9mills
4
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1K
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The worlds smallest Modbus IoT gateway
Last message by
SoCalDude
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438
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Read Coils/Write Single Coil
Last message by
Maik Staberock
5
Replies
765
Views
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MODBUS Master Implementation on Micro-controller
Last message by
David_2
3
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863
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