I try to control 2 Devices using Modbus RTU485 and 2 CS1030, with each Device connect to single CS1030 module, I can control 1 Device with LibDRVmbus sample, but I don’t know how to configure it for 2 Device, can some one help me?

Since I use 2 X20CS1030 with Address (‘SL1.IF1.ST50.IF1.ST2.IF1’) and (‘SL1.IF1.ST50.IF1.ST3.IF1’), do I need to make 2 master programs for each of the address?

Oh, I saw it wrong. I understood that single X20CS1030 with 2 slaves. Yes, You’re right. As shown in the image below, one program is required for each MODBUS master. (DataObj also.) [image]

It worked, but why when I try to watch the communication for my 2nd Device is not as fast as the 1st Device? I already set the same configuration for Baudrate

2 Modbus Device Control via X20CS1030

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seunghwa (Seunghwa Hyun) July 3, 2025, 10:08am 2

Hello,

You just add configuration to DataObject.

For example, line 10 in the image below has a SlaveID 5 and line 12 has a SlaveID 8.

Best Regards,

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2 Modbus Device Control via X20CS1030

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