IEC 61850 MMS Client

• Fixed an issue where event playback would not work on initial load because the driver was not applying the playback settings correctly.

• Changed tag addressing to define polled versus unsolicited tags by the address. All tags with the generic address are now polled. Unsolicited or RCB tags now have a special : address syntax. This allows clients to know if a tag is polled or unsolicited by looking at the address. Previously, there was one generic address syntax and a setting to enable RCBs. For legacy projects, all tags will become polled tags until the address syntax is changed.

• RCB are now enabled on first client reference to an unsolicited tag in the block, and disabled when the last client reference is removed.

• Updated automatic tag generation from SCL files to support <RCB>:<Data> syntax and to flatten the generated tag hierarchy. There are no longer tag groups for every nested 61850 object.

• Added a configurable Integrity Poll Rate (ms) parameter to Device Properties to report when the server loses connectivity to a device when using unsolicited tags.

• Fixed an issue where unsolicited tags would not receive an initial update.

• The NIC card selected in Channel Properties is now respected by the driver. Prior to this fix, users could have encountered problems with device connectivity when selecting a non-default NIC card.

• Updated the driver to disconnect and reconnect to devices when the NIC selection is changed while clients are connected to the server and requesting item updates from the device.

• Resolved an issue that could occur when processing incoming data for multiple devices under a channel and result in communication deadlock

Initial release of a new driver for applications in power distribution (substations). This Ethernet driver connects to servers supporting the Manufacturing Message Specification of IEC 61850. The following features are supported: Automatic Tag Generation from device or SCL file; data Polling; unsolicited data via Report Control Blocks (RCBs); custom Report Buffering/Playback; and Control Model write support.