# Multiple Modbus RTU Slaves causes error

**URL:** <https://discourse.nodered.org/t/multiple-modbus-rtu-slaves-causes-error/18783>\
**Category:** Industrial\
**Created:** [4 December 2019 10:12 UTC](https://discourse.nodered.org/t/multiple-modbus-rtu-slaves-causes-error/18783 "2019-12-04T10:12:21Z")\
**Posts on this page:** 1\
**Showing post:** 13

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**Author:** ![Hasitha\_Sudasinghe](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/hasitha_sudasinghe/32/22710_2.png) [@Hasitha\_Sudasinghe](https://discourse.nodered.org/u/Hasitha_Sudasinghe)\
**Post date:** [25 May 2020 07:40 UTC](https://discourse.nodered.org/t/multiple-modbus-rtu-slaves-causes-error/18783/13 "2020-05-25T07:40:49Z")

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Can you please help me with my case?

> [@Modbus RS485 to USB communication](https://discourse.nodered.org/t/modbus-rs485-to-usb-communication/27074):
>
> Im trying to communicate Schneider PM1200 energy meter with Node red. There i have used Brainbox US-324 RS485 to USB converter and i have successfully check my path via modscan. As per Schneider data sheet i want to read 3709 Float holding register to Node red. I have tried my best to do that and still i could not be able to do what i want to do. Can anyone here help me please. I will add my project below. Baud rate= 19.2K ,Parity = Even , Device ID = 1, Com port = 3 Thank you. [{"id":"2da7…

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