# Error : CRC error in Modbus read node
**URL:** https://discourse.nodered.org/t/error-crc-error-in-modbus-read-node/46146
**Category:** General
**Created:** [24 May 2021 10:34 UTC](https://discourse.nodered.org/t/error-crc-error-in-modbus-read-node/46146 "2021-05-24T10:34:25Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Josh](https://discourse.nodered.org/u/Josh)
#### Post date: [24 May 2021 10:34 UTC](https://discourse.nodered.org/t/error-crc-error-in-modbus-read-node/46146/1 "2021-05-24T10:34:26Z")
I am trying to read Energy Meter values using the Modbus read node. But I get this CRC Error. Can anyone help fix this??
Below is my flow and configuration. Urgent help in this. Please respond as soon as you can.
````auto
[{"id":"278c3ffc.fa40d8","type":"tab","label":"Modbus HTTP","disabled":false,"info":""},{"id":"39e8d4aa.21d4bc","type":"debug","z":"278c3ffc.fa40d8","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","statusVal":"","statusType":"auto","x":640,"y":340,"wires":[]},{"id":"947baffa.8495d","type":"modbus-read","z":"278c3ffc.fa40d8","name":"","topic":"","showStatusActivities":true,"logIOActivities":false,"showErrors":true,"unitid":"1","dataType":"HoldingRegister","adr":"0","quantity":"10","rate":"2","rateUnit":"s","delayOnStart":true,"startDelayTime":"5","server":"d9430583.5fc5f8","useIOFile":false,"ioFile":"","useIOForPayload":false,"emptyMsgOnFail":true,"x":260,"y":300,"wires":[["39e8d4aa.21d4bc"],[]]},{"id":"d9430583.5fc5f8","type":"modbus-client","name":"","clienttype":"serial","bufferCommands":true,"stateLogEnabled":false,"queueLogEnabled":false,"tcpHost":"127.0.0.1","tcpPort":"502","tcpType":"DEFAULT","serialPort":"COM4","serialType":"RTU-BUFFERD","serialBaudrate":"9600","serialDatabits":"8","serialStopbits":"1","serialParity":"none","serialConnectionDelay":"100","unit_id":"1","commandDelay":"1","clientTimeout":"1000","reconnectOnTimeout":true,"reconnectTimeout":"2000","parallelUnitIdsAllowed":true}]```
````
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### Author:  [@Josh](https://discourse.nodered.org/u/Josh)
#### Post date: [31 May 2021 13:56 UTC](https://discourse.nodered.org/t/error-crc-error-in-modbus-read-node/46146/2 "2021-05-31T13:56:24Z")
SOLVED !!!!! I had used the Wrong Register address. For example to access the data of the register 40157 we need to query from the 156th register as it takes up two byte of data. Any one who is still facing this issue kindly ping me.
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### Author:  [@system](https://discourse.nodered.org/u/system)
#### Post date: [14 June 2021 13:56 UTC](https://discourse.nodered.org/t/error-crc-error-in-modbus-read-node/46146/3 "2021-06-14T13:56:58Z")
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