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.