node-red-contrib-module
Node-Red nodes for using the redPlc module nodes
Install
Install with Node-Red Palette Manager or npm command:
npm install node-red-contrib-module
Usage
With this nodes, you can use the redPlc module nodes
without redPlc ladder logic.
Wire the module nodes in series to Module-Update node.
Use more Module-Update nodes for different update cycle.
The redPlc module nodes creates global variables and updates
the data from/to hardware or communication.
Use Module-Input node for read data from global variables.
Use Module-output node for write data to global variables.
Example
An application with Raspberry Pi gpio and mcp23008 I/O.
Install
gpio
,
mcp23008
module nodes and Node-Red Dashboard.
Switches are connected to gpio pin GPIO04 and GPIO17.
Set GPIO04, GPIO17 as input-pullup.
mcp23008 is used as output and drives leds on GP0 and GP1.
Set mcp23008 as output
GPIO04 turns GP0 on/off.
GPIO17 sets Dashboard switch GPIO17.
Dashboard switch GP1 sets output GP1.
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