The Industry 4.0 channel (IoT) enables communication with machines and control systems using the OPC UA protocol (Open Platform Communications Unified Architecture). OPC UA is a machine-readable, platform-independent standard for data communication in industrial automation.
In the channel settings, you specify whether the channel uses OPC UA communication and configure access and protocol parameters.
Settings
Parameters
Parameter | Description |
|---|---|
OPC UA | Enables the OPC UA protocol for this channel. The checkbox is selected by default. Clear it only if the channel should not use the OPC UA protocol. The channel cannot be used for OPC UA communication when the checkbox is cleared. |
Own ID | The local identity of the platform toward the OPC UA peer. Corresponds to the |
Own password | Password for the local identity. Corresponds to the |
Partner ID | Identity of the OPC UA peer. Corresponds to the |
Partner password | Password for the partner identity. Corresponds to the |
Direction | Defines whether the channel receives data ( |
Invisible to DMZ | Controls whether the channel is reachable in a DMZ configuration. Corresponds to the |
Use Comm-Log | Enables the communication log for this channel. Use Retain days to define how long log entries are kept. A value of |
Security and certificates
To use an encrypted connection, set the opcSecurityPolicy parameter in the iotclient.xml configuration file. Supported values are:
NoneBasic128Rsa15Basic256Basic256Sha256Aes128_Sha256_RsaOaepAes256_Sha256_RsaPss
Set the Common Name of the certificate in the certificateSearchTerm parameter. You can specify a local certificate and a partner certificate for encryption. Enter the certificate IDs in the channel settings under Local certificate (encryption) and Partner certificate (encryption).
NOTE: For an OPC UA server that rejects anonymous connections (
anonymousLoginAllowed = false), you must use an IoT channel in the profile. Enter the Partner ID and the Partner password in the channel under Partner ID.