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Release Note

Welcome to VK224 4-Port Serial Expansion Box
Notice: Before downloading the software , be sure to read the following information carefully.
This latest version contains corrections to the last version and additions to the next version. You will find them listed below.
Version History
VersionDescriptionNote
v3.4.3331. Supports Modbus protocol - enables integration with Modbus devices, including TCP, RTU, and its checksum data
2. Supports Telnet CLI (command-line interface) mode for third-party system integration
v3.1.3021. Support SSH communication protocol
v3.0.2951. Support the feature of adding a detection characters to the end of received message.
v3.0.2941. Bug Fixed
v2.8.2711. Enhance the stability of communication with controllers
v2.6.253Bug fixed
v2.6.2511. Enable to monitor VK224 expansion boxes in listen mode
2. Enable to communicate between controllers via ID or static IP address
3. Compliant USA California password policy
4. improve communication performance with contollers
5. Bug fixed
v2.2.213Product Maintenance
v2.1.204Bug fixed
v2.0.191Improved Performance
v1.6.156Firmware Upgrade