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17 MODBUS
Modbus messaging protocol is used to establish client-server (master-slave)
communication between devices.
MC100 can be used either as a master device (server) or slave device (client).
MODBUS for Node-RED
node-red-modbus is factory installed on MC100.
Do not try to install the node-red-contrib-modbus package from within Node-
RED.
Creating a first flow
1. Open Node-Red in your browser.
2. Add Debug node.
3. Add Modbus read node.
4. Wire them.
5. Double click on Modbus read node to configure it.
6. Change the settings depending on the device you want to read out.
7. Click on the edit button near Server to configure the Modbus device.
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