# Read 10 modbus slave

**URL:** <https://discourse.nodered.org/t/read-10-modbus-slave/66479>\
**Category:** General\
**Tags:** modbus\
**Created:** [16 August 2022 09:08 UTC](https://discourse.nodered.org/t/read-10-modbus-slave/66479 "2022-08-16T09:08:03Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![VEENS973](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/veens973/32/40589_2.png) [@VEENS973](https://discourse.nodered.org/u/VEENS973)\
**Post date:** [16 August 2022 09:08 UTC](https://discourse.nodered.org/t/read-10-modbus-slave/66479/1 "2022-08-16T09:08:03Z")

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hi  
i need to know how read 10 modbsu slave holding register with node red.  
Not it same time but by sequencial read.  
please help me

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**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Post date:** [16 August 2022 09:38 UTC](https://discourse.nodered.org/t/read-10-modbus-slave/66479/2 "2022-08-16T09:38:49Z")

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Is that 10 devices or 10 registers from 1 device?

If 1 device, what are the addresses - are the all within 100 of each other - or - spaced out across the address range.

I ask because, reading 10 registers from 1 device in one go is more that 10x faster (and much more reliable) than 10 single register reads.

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**Author:** ![Iqapps](https://avatars.discourse-cdn.com/v4/letter/i/eada6e/32.png) [@Iqapps](https://discourse.nodered.org/u/Iqapps)\
**Post date:** [16 August 2022 20:36 UTC](https://discourse.nodered.org/t/read-10-modbus-slave/66479/3 "2022-08-16T20:36:12Z")

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![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/c/0/c05a68aa6772b152c32b83375624876ff5b05b41.png)

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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:** [15 October 2022 20:37 UTC](https://discourse.nodered.org/t/read-10-modbus-slave/66479/4 "2022-10-15T20:37:05Z")

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