# Modbus-node Errors

**URL:** <https://discourse.nodered.org/t/modbus-node-errors/58007>\
**Category:** General\
**Created:** [8 February 2022 22:29 UTC](https://discourse.nodered.org/t/modbus-node-errors/58007 "2022-02-08T22:29:36Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![aallen](https://avatars.discourse-cdn.com/v4/letter/a/65b543/32.png) [@aallen](https://discourse.nodered.org/u/aallen)\
**Post date:** [8 February 2022 22:29 UTC](https://discourse.nodered.org/t/modbus-node-errors/58007/1 "2022-02-08T22:29:36Z")

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Hello,  
Recently, my modbus-node (modbus-write-buffer & modbus-flex-getter) have been throwing these errors that I cannot figure out why.

Here is the current settings for the nodes:

 ![Screen Shot 2022-02-08 at 4.25.25 PM](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/5/4/5452d99c7284e2fc74eacccd1b88927848fd1939.png)

Here is the error occurring intermittently:

```auto
2/8/2022, 4:30:57 PMnode: VFD MODBUS
msg : string[123]
"Client -> fsm failed state after sending Get More About It By Logging Serial@/dev/ttySerMod0.0:9600bit/s default Unit-Id: 1"

2/8/2022, 4:31:42 PMnode: VFD MODBUS
msg : string[122]
"Client -> fsm broken state after failed Get More About It By Logging Serial@/dev/ttySerMod0.0:9600bit/s default Unit-Id: 1"

2/8/2022, 4:31:42 PMnode: VFD MODBUS
msg : string[125]
"Client -> fsm reconnect state after broken Get More About It By Logging Serial@/dev/ttySerMod0.0:9600bit/s default Unit-Id: 1"

2/8/2022, 4:31:44 PMnode: VFD MODBUS
msg : string[97]
"Client -> fsm init state after reconnecting Serial@/dev/ttySerMod0.0:9600bit/s default Unit-Id: 1"

2/8/2022, 4:24:49 PM node: VFD MODBUS
msg : string[83]
"Client -> fsm init in 2000 ms Serial@/dev/ttySerMod0.0:9600bit/s default Unit-Id: 1"

2/8/2022, 4:31:46 PMnode: VFD MODBUS
msg : string[125]
"Client -> fsm connected after state opened Get More About It By Logging Serial@/dev/ttySerMod0.0:9600bit/s default Unit-Id: 1"

```

Restarting node-red or redeploying sometimes causes the errors to pause. However, they always start again. It does not seem to be every inject it happens, just sometimes. I started with the Que Delay @ 1 ms, and have increased it to 20, then 40 ms, and the issue still occurs.  
Currently running Node-Red v1.03 and node-red-contrib-modbus v5.16.0.  
I am using Node-Red with a Opto 22's groov Epic.

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [9 April 2022 22:30 UTC](https://discourse.nodered.org/t/modbus-node-errors/58007/2 "2022-04-09T22:30:06Z")

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