Version v0.18.7 + Modbus

#1

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

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#2

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

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#3

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

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#4

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

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#5

The version latest version v0.18.7

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#6

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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#7

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

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#8

@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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#9

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

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#10

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

For example: 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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#11

Also, the version of node red in raspbian is out of date.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

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