# Krakul/node-red-modbus-rtu-slave writing multiple values at once
**URL:** https://discourse.nodered.org/t/krakul-node-red-modbus-rtu-slave-writing-multiple-values-at-once/75609
**Category:** General
**Created:** [22 February 2023 22:21 UTC](https://discourse.nodered.org/t/krakul-node-red-modbus-rtu-slave-writing-multiple-values-at-once/75609 "2023-02-22T22:21:12Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@Gh0st90](https://discourse.nodered.org/u/Gh0st90)
#### Post date: [22 February 2023 22:21 UTC](https://discourse.nodered.org/t/krakul-node-red-modbus-rtu-slave-writing-multiple-values-at-once/75609/1 "2023-02-22T22:21:12Z")
Hello,
I have installed the krakul/node-red-modbus-rtu-slave pakage on my raspi with node-red version 3.0.2,
I need to write a response on the following request.
The modbus-rtu-writer in the pakage can only write one value,.but i need a response with 6 registers.
Setting the registers separately does not work.
Request from my inverter:
```auto
msg : Object
object
payload: "ModbusRTURequest {↵ _address: 1,↵ _body: ReadInputRegistersRequestBody { _fc: 4, _start: 12, _count: 6 },↵ _corrupted: false↵}"
```
In the help from the Modbus-RTU-Slave is written:
```auto
In order to write registers, a message with the following payload format must be passed as input:
{
"register": TARGET_REGISTER,
"data": [U16, U16, U16]
```
But i dont know, how to do this. I need your help for this.
Thank you.
---
### Author:  [@system](https://discourse.nodered.org/u/system)
#### Post date: [23 April 2023 22:21 UTC](https://discourse.nodered.org/t/krakul-node-red-modbus-rtu-slave-writing-multiple-values-at-once/75609/2 "2023-04-23T22:21:14Z")
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