Features:
- 6AV6640-0AA00-0AX0 is the China-market order number for a four-line TD400C.
- STEP 7 Micro/WIN supplies the configuration path for the S7-200 text display.
- A customizable faceplate aligns physical labels with as many as 15 configured keys.
The 6AV6640-0AA00-0AX0 places operator text and keypad commands at the front of an S7-200 installation.
Screen and alarm definitions are retained in the controller data used by the TD400C rather than as an independent control program in the panel.
Order-number suffix, keypad artwork and PPI settings must be reviewed together when matching the installed display.
The Siemens 6AV6640-0AA00-0AX0 TD400C Four-Line Text Display may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6AV6640-0AA00-0AX0 TD400C Four-Line Text Display Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
How operator text and keys are paired
- Text field: The backlit graphic area provides 192 × 64 pixels for the four-line interface.
- Key capacity: The customizable layout supports as many as 15 configured keys.
- Faceplate link: Printed legends must correspond to the keypad configuration loaded for the panel.
- Operator path: Arrow and configured keys provide access to screens, alarms and permitted data edits.
Where screens and alarm data reside
- Controller storage: Screen and alarm definitions occupy the TD parameter block in S7-200 CPU memory.
- Panel request: The TD400C reads the configured information from the controller during operation.
- PPI transport: The RS-485 link supports 9.6, 19.2 or 187.5 kbit/s communication.
- Address check: CPU and TD network settings must agree before screen data can be exchanged.
Supplying the display without losing the interface boundary
- Nominal source: The TD400C operates from a 24 V DC supply.
- Permitted window: The documented supply range is 15–30 V DC.
- Source options: Power may be obtained from the CPU, a mains adapter or an external DC source.
- Surge boundary: An external protector is required when the selected supply has no suitable surge protection.
Conditions behind the front protection rating
- Front surface: IP65 depends on mounting the TD400C to the stated panel requirements.
- Panel thickness: The supporting panel must be at least 1.5 mm thick.
- Screw torque: Mounting screws are tightened to 0.7 N·m.
- Gasket condition: The seal is replaced whenever the display is removed and reinstalled.