Modbus Ethernet

• Changed the driver's minimum Timeout setting from 50 milliseconds to 10 milliseconds.

• Fixed an issue where a buffer overflow could result in the driver writing to erroneous coils.

• Added support for importing string type tags via the Variable Import Settings page.

• Fixed an issue involving register block sizes of 1 to 4, or coil block sizes of 8 or 16 when using packed coils. The issue either resulted in a failure to add tags from a client or in tags being set to bad quality because of a malformed packet.

• The driver now closes socket connections when a device is disabled.

• Created a new CEG model.

• Fixed an issue where some errors returned by the device were not being properly reported by the server.

• Fixed an issue resulting in bad quality data for 32 and 64 bits tags residing in the upper block boundary.

• Fixed an issue resulting in bad quality data for packed coil tags defined at the upper block boundary.

• Updated the driver to change the unsolicited communications timeout value from -1 to 0 (if applicable) when loading a project. This invalid value may be present in projects that were saved using older driver versions, and will invoke an error pop-up message after the Unsolicited tab is viewed in Device Properties.

• Added support for tag-level Byte and Word order swapping to the Applicom device model.

• Fixed address parser issues occurring in the Applicom device model where various invalid characters were accepted at the end of a valid address. Also fixed an issue where the 'D' and 'F' address types were allowing bit within word syntax even though the driver does not support bit in 32-bit values.

• Increased the character limit of the tag Description field from 64 to 255.

• Fixed an issue where the driver was posting continuous "Failed to start unsolicited communications messages" in the Event Log when Port 502 was in use by another application at startup.

• Added the new device-level internal tag "_FailedConnection" that indicates the driver failed on its attempt to connect to the device.

Added support for Channel Serialization.

Note: Channel Serialization is not supported for unsolicited devices or mailbox model types.

• The "Use holding register bit mask writes" setting is now disabled by default for the Applicom sub-model type TSX Premium.
• Added Boolean support for the "%M" and" %MX" syntax.
• Added " %MWaaaa:Xb" to read a bit in a word (in addition to the current "%MWaaaa.b").
• Added the ability to append an 'H' or 'L' to the end of an Applicom string address when defining byte order.
• Fixed an issue where concurrent writes to multiple bits within the same register were not being retained if the channel was configured to use more than one socket per device and the device property "Use holding register bit mask writes" was unchecked.
• Corrected Applicom string address syntax to use string length as length in words, not bytes.

• Added an Applicom model type to support Applicom-centric address syntax for Modbus Ethernet enabled devices. Selecting the Applicom model in the Device Wizard prompts a "Sub-Model" dialog that includes options for "Generic Modbus," "TSX Premium," and "TSX Quantum."

• Fixed an issue with unsolicited connections management and expanded the maximum unsolicited socket connections from 32 to 256.
• Added a setting that allows users to select whether the driver will close the socket on timeout.
• The driver will now check for License Activation upon receiving unsolicited communications.

• In a fix carried over from a patch to 4x, fail now tags immediately if the packet can't be transmitted (instead allowing retry logic to execute).

• Fixed issue with write-only tags introduced in 5.0. The value of the tag was not updating when a value was written to it. The correct value was written to the device, just not displayed in the data client.
• Allow global settings that control unsolicited port and protocol to change on the fly.

• Added string data type support for Internal Registers.