Modbus TCP Slave Limit

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jeremyhines
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Joined: 26 Nov 2018, 17:44
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Modbus TCP Slave Limit

Post by jeremyhines »

How many Modbus TCP slave devices can be polled via a single Modbus Master? Also, is there a limit to the number of commands that can be programmed for each slave?
Eduard
KUNBUS
Posts: 209
Joined: 18 Jun 2018, 16:16
Answers: 0

Re: Modbus TCP Slave Limit

Post by Eduard »

Hello,

the number of participants should theoretically be 2^32, because there are so many IPv4 addresses. A maximum of 32 registers per virtual device can be used for input and output data. Should you need more, then you can simply configure several virtual Modbus devices. A total of 30 virtual devices can be configured.
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