# Using Modbus RTU/TCP - parallel sub second query to multiple modbus devices

**URL:** https://discourse.nodered.org/t/using-modbus-rtu-tcp-parallel-sub-second-query-to-multiple-modbus-devices/76220
**Category:** General
**Created:** [7 March 2023 09:42 UTC](https://discourse.nodered.org/t/using-modbus-rtu-tcp-parallel-sub-second-query-to-multiple-modbus-devices/76220 "2023-03-07T09:42:27Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![jakonnode](https://avatars.discourse-cdn.com/v4/letter/j/3ec8ea/32.png) [@jakonnode](https://discourse.nodered.org/u/jakonnode)
#### Post date: [7 March 2023 09:42 UTC](https://discourse.nodered.org/t/using-modbus-rtu-tcp-parallel-sub-second-query-to-multiple-modbus-devices/76220/1 "2023-03-07T09:42:27Z")

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I have a daisy-chained energy meters (\>15) connected to a modbus-RTU. Now RTU has a single serially queryable master interface for getting data. Even with RTU to TCP converter I am assuming all the query would go sequentially.

My requirement is to get the energy data every second from each of the energy meters behind the modbus RTU. Has anyone dealt with such use-cases?

~JAK

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### Author: ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)
#### Post date: [6 May 2023 09:43 UTC](https://discourse.nodered.org/t/using-modbus-rtu-tcp-parallel-sub-second-query-to-multiple-modbus-devices/76220/2 "2023-05-06T09:43:25Z")

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