depaula-contrib-ethip

A Node-RED depaula's prototype node to interact with UR20-FBC-EIP Weidmueller device with Ethernet/IP protocol. Based on the awesome work of [plc/depaula_eip].

Installing

You can install this node directly from the "Manage Palette" menu in the Node-RED interface. There are no external dependencies or compilation steps.

Alternatively, run the following command in your Node-RED user directory - typically ~/.node-red on Linux or %HOMEPATH%\.nodered on Windows

    npm install depaula-contrib-ethip

Usage

Just drop a depaula_eip in node to read and watch addresses of the device, or a depaula_eip out node to write values to the device. Both of them need a depaula_eip endpoint, where you can configure the address of the device (IP Address, port, and routing), the cycle time and timeout values, and the list of addresses available on the device.

Addressing

The addresses follow the same syntax of what would be used on RSLogix, so for example B3:0/0 addresses the bit 0 of byte 0 in the file B3, and F8:1 points to the float 1 at the file F8.

About routing

The configuration of routing follows a very special syntax for now

0x01,0x00,0x01,0x00
  |    |    |    |
  |    |    |    +-- 0: The slot (position)
  |    |    +------- 1: Route over the backplane
  |    +------------ Reserved, always zero
  +----------------- 1: Number of words (1 = 2 bytes) of the routing section

You most likely just want to change the last number to the slot of the device when connecting

Wishlist

• Validate addresses
• Improve routing configuration

Bugs and enhancements

Please share your ideas on my email

License

Copyright 2016-2017 Smart-Tech, Apache 2.0 license.