# InfluxDB  -  Modbus

**URL:** <https://community.influxdata.com/t/influxdb-modbus/30412>\
**Category:** Systems\
**Created:** [June 23, 2023, 9:36am UTC](https://community.influxdata.com/t/influxdb-modbus/30412 "2023-06-23T09:36:09Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Armalite-2](https://avatars.discourse-cdn.com/v4/letter/a/c89c15/32.png) [@Armalite-2](https://community.influxdata.com/u/Armalite-2)\
**Post date:** [June 23, 2023, 9:36am UTC](https://community.influxdata.com/t/influxdb-modbus/30412/1 "2023-06-23T09:36:09Z")

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Hello everyone,  
Log my PV system with Modbus and read out the data.  
I am using Iobroker in conjunction with the Influx DB (Cloud). However, I have a problem that I always get the value 0 in the InfluxDB when reading.

Tobi

 ![influxdb_tabel](https://us1.discourse-cdn.com/flex023/uploads/influxdata/original/2X/5/54fb709a19f5c4bce8210b507ce0a7d0e0c65407.png)  
 ![influxdb_graph](https://us1.discourse-cdn.com/flex023/uploads/influxdata/original/2X/c/ce3642bf93cb191622f570a8adeb60f6df575fe3.png)  
 ![modbus](https://us1.discourse-cdn.com/flex023/uploads/influxdata/original/2X/4/405f02da00e6ff1c861c6b5442d499e88b387875.png)

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**Author:** ![Anaisdg](https://sea1.discourse-cdn.com/flex023/user_avatar/community.influxdata.com/anaisdg/32/6401_2.png) [@Anaisdg](https://community.influxdata.com/u/Anaisdg)\
**Post date:** [June 28, 2023, 11:16pm UTC](https://community.influxdata.com/t/influxdb-modbus/30412/2 "2023-06-28T23:16:28Z")

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@Jay_Clifford any chance you can help here please?  
@Armalite-2, I’m sorry I’m not that familiar with mobus.  
Are you using the telegraf configuration?  
Can you please share it?  
Thank you.

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**Author:** ![Jay\_Clifford](https://sea1.discourse-cdn.com/flex023/user_avatar/community.influxdata.com/jay_clifford/32/8287_2.png) [@Jay\_Clifford](https://community.influxdata.com/u/Jay_Clifford)\
**Post date:** [July 24, 2023, 9:20am UTC](https://community.influxdata.com/t/influxdb-modbus/30412/3 "2023-07-24T09:20:49Z")

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> [@Armalite-2](#):
>
> Iobroker

Hi @Armalite-2,  
Do you have any documentation on how ioBroker connects and writes to InfluxDB. Hopefully we can understand why you are getting 0’s. Would you also be toggle over to the Table tab rather than using the Table UI visualisation?