# Version v0.18.7 + Modbus

**URL:** <https://discourse.nodered.org/t/version-v0-18-7-modbus/893>\
**Category:** General\
**Created:** [18 June 2018 18:27 UTC](https://discourse.nodered.org/t/version-v0-18-7-modbus/893 "2018-06-18T18:27:09Z")\
**Posts on this page:** 11\
**Page:** 1

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**Author:** ![Hasan](https://avatars.discourse-cdn.com/v4/letter/h/df705f/32.png) [@Hasan](https://discourse.nodered.org/u/Hasan)\
**Post date:** [18 June 2018 18:27 UTC](https://discourse.nodered.org/t/version-v0-18-7-modbus/893/1 "2018-06-18T18:27:09Z")

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Modbus communication can not be selected for this version AND modbus does not appear

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**Author:** ![ukmoose](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/ukmoose/32/13_2.png) [@ukmoose](https://discourse.nodered.org/u/ukmoose)\
**Post date:** [18 June 2018 19:04 UTC](https://discourse.nodered.org/t/version-v0-18-7-modbus/893/2 "2018-06-18T19:04:09Z")

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As far as I am aware there are no modbus nodes that come pre-installed in the standard version of Node-RED.

Where are you running Node-RED are you sure the node you are looking for isn’t one you installed yourself? [https://flows.nodered.org/?term=modbus&num\_pages=1](https://flows.nodered.org/?term=modbus&num_pages=1)

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**Author:** ![Hasan](https://avatars.discourse-cdn.com/v4/letter/h/df705f/32.png) [@Hasan](https://discourse.nodered.org/u/Hasan)\
**Post date:** [18 June 2018 19:17 UTC](https://discourse.nodered.org/t/version-v0-18-7-modbus/893/3 "2018-06-18T19:17:45Z")

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I setup raspbian in raspberry pi rasbian has already node red but modbus does not appear

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**Author:** ![ukmoose](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/ukmoose/32/13_2.png) [@ukmoose](https://discourse.nodered.org/u/ukmoose)\
**Post date:** [18 June 2018 19:22 UTC](https://discourse.nodered.org/t/version-v0-18-7-modbus/893/4 "2018-06-18T19:22:27Z")

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If it is the pre-installed version of Node-RED you are using an old version.

You need to flow the instructions here [https://nodered.org/docs/hardware/raspberrypi](https://nodered.org/docs/hardware/raspberrypi)

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**Author:** ![Hasan](https://avatars.discourse-cdn.com/v4/letter/h/df705f/32.png) [@Hasan](https://discourse.nodered.org/u/Hasan)\
**Post date:** [18 June 2018 19:33 UTC](https://discourse.nodered.org/t/version-v0-18-7-modbus/893/5 "2018-06-18T19:33:39Z")

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The version latest version v0.18.7

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**Author:** ![ukmoose](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/ukmoose/32/13_2.png) [@ukmoose](https://discourse.nodered.org/u/ukmoose)\
**Post date:** [18 June 2018 19:42 UTC](https://discourse.nodered.org/t/version-v0-18-7-modbus/893/6 "2018-06-18T19:42:04Z")

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OK so you have the latest version of Node-RED.

No Modbus nodes are installed by default you need to install them.

If it fails to install what does it say in the logs?

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**Author:** ![Hasan](https://avatars.discourse-cdn.com/v4/letter/h/df705f/32.png) [@Hasan](https://discourse.nodered.org/u/Hasan)\
**Post date:** [19 June 2018 08:52 UTC](https://discourse.nodered.org/t/version-v0-18-7-modbus/893/7 "2018-06-19T08:52:43Z")

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pi@raspberrypi:~ node -v v10.4.1 pi@raspberrypi:~ npm -v  
6.1.0  
pi@

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**Author:** ![knolleary](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/knolleary/32/3_2.png) [@knolleary](https://discourse.nodered.org/u/knolleary)\
**Post date:** [19 June 2018 08:57 UTC](https://discourse.nodered.org/t/version-v0-18-7-modbus/893/8 "2018-06-19T08:57:57Z")

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@Hasan what steps have you taken to install the modbus nodes? They are not part of the default install of Node-RED - you have to install them yourself.

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**Author:** ![Hasan](https://avatars.discourse-cdn.com/v4/letter/h/df705f/32.png) [@Hasan](https://discourse.nodered.org/u/Hasan)\
**Post date:** [19 June 2018 09:52 UTC](https://discourse.nodered.org/t/version-v0-18-7-modbus/893/9 "2018-06-19T09:52:30Z")

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how?  
ı setup just raspberry pi 3.  
node red is already inside rasbian  
please help following roots for node red

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**Author:** ![knolleary](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/knolleary/32/3_2.png) [@knolleary](https://discourse.nodered.org/u/knolleary)\
**Post date:** [19 June 2018 09:56 UTC](https://discourse.nodered.org/t/version-v0-18-7-modbus/893/10 "2018-06-19T09:56:52Z")

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Node-RED does not come with anything related to modbus pre-installed.

If you want to do something with modbus you need to install some modbus nodes into Node-RED.

The first step is to identify what nodes you want to install. If you search the Flow Library for modbus you’ll find a few different sets of nodes available: [https://flows.nodered.org/?term=modbus&num\_pages=1](https://flows.nodered.org/?term=modbus&num_pages=1)

For example: [https://flows.nodered.org/node/node-red-contrib-modbus](https://flows.nodered.org/node/node-red-contrib-modbus)

To install that, you can either use the ‘Manage Palette’ option in the node-red editor, or run the command `npm install node-red-contrib-modbus` in the directory `/home/pi/.node-red` and then restart Node-RED.

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<div class="post-metadata">

**Author:** ![Colin](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/colin/32/17040_2.png) [@Colin](https://discourse.nodered.org/u/Colin)\
**Post date:** [19 June 2018 10:04 UTC](https://discourse.nodered.org/t/version-v0-18-7-modbus/893/11 "2018-06-19T10:04:07Z")

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Also, the version of node red in raspbian is out of date. Update to the latest using the technique in  
[https://nodered.org/docs/hardware/raspberrypi](https://nodered.org/docs/hardware/raspberrypi)