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Here you will find a technical description of how to configure the KUNBUS gateway Ethernet/IP with CODESYS.

Table of Contents

System overview

these devices have been used for this application note

  • KUNBUS Gateway Ethernet/IP

  • Revolution Pi Core 3 (3+, S) or Connect (+, S, 4)

please Please connect your devices as shown in the illustration below

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Preparation

Please follow Follow the instructions steps of the following checklists:

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Expand
title/etc/dhcpcd.conf shown in line 50-52
Code Block
# A sample configuration for dhcpcd.
# See dhcpcd.conf(5) for details.

# Allow users of this group to interact with dhcpcd via the control socket.
#controlgroup wheel

# Inform the DHCP server of our hostname for DDNS.
hostname

# Use the hardware address of the interface for the Client ID.
clientid
# or
# Use the same DUID + IAID as set in DHCPv6 for DHCPv4 ClientID as per RFC4361.
# Some non-RFC compliant DHCP servers do not reply with this set.
# In this case, comment out duid and enable clientid above.
#duid

# Persist interface configuration when dhcpcd exits.
persistent

# Rapid commit support.
# Safe to enable by default because it requires the equivalent option set
# on the server to actually work.
option rapid_commit

# A list of options to request from the DHCP server.
option domain_name_servers, domain_name, domain_search, host_name
option classless_static_routes
# Respect the network MTU. This is applied to DHCP routes.
option interface_mtu

# Most distributions have NTP support.
#option ntp_servers

# A ServerID is required by RFC2131.
require dhcp_server_identifier

# Generate SLAAC address using the Hardware Address of the interface
#slaac hwaddr
# OR generate Stable Private IPv6 Addresses based from the DUID
slaac private

# Example static IP configuration:
interface eth0
static ip_address=192.168.168.70/24
#static ip6_address=fd51:42f8:caae:d92e::ff/64
#static routers=192.168.0.1
#static domain_name_servers=192.168.0.1 8.8.8.8 fd51:42f8:caae:d92e::1

# Example static IP configuration:
interface eth1
static ip_address=192.168.1.100/24

# It is possible to fall back to a static IP if DHCP fails:
# define static profile
#profile static_eth0
#static ip_address=192.168.1.23/24
#static routers=192.168.1.1
#static domain_name_servers=192.168.1.1

# fallback to static profile on eth0
#interface eth0
#fallback static_eth0

# Prioritize wlan0 routes over eth0 routes.
interface wlan0
        metric 100
  • install KUNBUS EtherNet/IP EDS file into CODESYS IDE24

  • Since “Bullseye” Image, this works with the command “nmtui”:

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Create

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the CODESYS Project

Implementation

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Note

  • The older version 1.2.1.0 is used here, as CODESYS version 3.5 SP17 is used.

  • If SP18 is used, the latest version 1.3.0.0 must be selected.

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