S661 Controller Manual Exclusive

Do not use XMODEM. Use the Hidden YMODEM-G protocol.

Exclusive Warning: Never interrupt power between writing block 8 and block 9 during a firmware flash. If you cut power during this specific 400ms window, the bootloader enters a "zombie state" requiring a JTAG reflash. To exit zombie state without JTAG: cycle power 11 times in 10 seconds. This triggers the emergency fallback ROM (A feature only documented in the Chinese internal service manual). s661 controller manual exclusive

The official manual provides a table for Input Registers (IR1 to IR32) and Output Registers (OR1 to OR16). That is the "public" map. Do not use XMODEM

| Code | Function | Description / Setting | | :--- | :--- | :--- | | InPt | Input Type | Crucial Step. Selects the sensor type. Common options: • K: K-type Thermocouple (Most common)• J: J-type Thermocouple• Pt1: PT100 RTD | | Hy | Hysteresis | Used for On/Off control. Sets the dead band to prevent relay chatter. (e.g., 2.0 degrees). | | P | Proportional Band | PID parameter. Narrow band = aggressive heating. Wide band = stable but slow. | | I | Integral Time | Eliminates offset. | | D | Derivative Time | Prevents overshoot. | | At | Auto-Tune | Set to 1 or ON to let the controller calculate PID automatically (Recommended for new setups). | | LoCK | Lock Code | 0000 = Unlocked. Enter a specific code (often 0001 or 1234) to lock settings to prevent tampering. | The official manual provides a table for Input

The standard manual glosses over advanced PID adjustments. Our exclusive notes show: