Kt20-y-multi-v2.0 Update May 2026
| Item | Details |
|------|---------|
| Update Name | KT20-Y-Multi-v2.0 |
| Type | Major firmware / system software update |
| Prerequisite Version | v1.8 or higher (v1.x series) |
| Target Device | KT20-Y Multi-series (all sub-models: -B, -P, -E, -G) |
| Release Date | [Insert actual date] |
| Update Severity | Recommended (includes security patches & new features) |
Symptom: Slave devices disconnect every 90 seconds.
Cause: New default TCP keepalive timer (75s) conflicts with some older PLCs.
Fix: In Horizon Dashboard → Protocol Settings → Modbus → Set “TCP Keepalive” to 0 (disable) or 180s.
A German automotive parts manufacturer had 400 CANopen drives from various vendors. The kt20-y-multi v2.0’s improved CAN FD support and real-time kernel reduced jitter from ±5ms to ±150µs. Additionally, the new Sparkplug B integration delivered clean MQTT payloads that their new Ignition SCADA consumed natively.
Overall Verdict: 7.8/10 – A worthwhile, stability-focused update for existing users, but not a game-changer. kt20-y-multi-v2.0 update
Team KT20 has announced the following timeline:
Advice: If you are deploying a new industrial solution, migrate to V2.0 now. If you have a stable V1.7 installation that does not use networking or multi-protocol features, you have 18 months to plan your migration.
The v2.0 firmware will only run on hardware revision C or later of the kt20-y-multi board. Rev A and Rev B (early 2020 batches) lack the required TPM and extra RAM (now 1GB minimum). Users on old hardware must stay on the v1.4 LTS branch, which will receive security patches until December 2027. | Item | Details | |------|---------| | Update
How to check your hardware revision:
Use the command cat /proc/device-tree/model — if it shows “kt20-y-multi revB” or lower, do not attempt the v2.0 update.
| If you want… | Add this… |
|--------------------------------------|------------------------------------------------|
| Engagement | A short video (5–10s) showing v2.0 in action |
| Credibility | Changelog link + one specific fix (e.g., “fixed memory leak above 2GB”) |
| Urgency | “v1.x support ends in 60 days” |
| Community feel | “Thanks to @user3 and @user7 for pull requests #42, #89” |
Q: Does v2.0 erase my historical data?
No – internal flash data partition is preserved. However, always keep a backup. Advice: If you are deploying a new industrial
Q: Can I skip v1.9 and update directly from v1.5?
No. Update first to v1.8 or v1.9 (intermediate update required). Contact support for special bridging image.
Q: How long does the update take?
Typical: 2–4 minutes. If longer than 10 minutes, power cycle and retry.
Q: Will my SCADA integration break?
Existing Modbus registers and MQTT topics remain unchanged. OPC UA endpoints are new and optional.
Q: Does v2.0 support OTA updates for future patches?
Yes – partial OTA (delta updates) will be available from v2.0 to v2.1+.
