Siemens 6AV6642-0DA01-1AX1 – OP177B 6" PN/DP 256 Color
Siemens 6AV6642-0DA01-1AX1 – OP177B 6" PN/DP 256 Color from the Operator Panels 170 series range. Status: discontinued by the manufacturer, no longer available new since October 2026. Van Haelen supplies it refurbished or new in sealed factory packaging, with a 24-month warranty.
Also written as: 6AV6 642-0DA01-1AX1, 6AV66420DA011AX1
The Siemens 6AV6642-0DA01-1AX1 is a operator panel or industrial PC from the SIMATIC HMI (Operator Panels 170 series) range. Manufacturer type designation: OP177B 6" PN/DP 256 Color. Status: discontinued by the manufacturer, no longer available new since October 2026. Key data: weight 1.275 kg, dimensions 33,20 x 29,90 x 7,60 cm, HS code 85371098. Back up the project before replacing the panel and check that the software version matches. Ask us about exchange, repair and a spare-parts pool for your installation.
Available as
Product data
| Manufacturer | Siemens |
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| Part number | 6AV6642-0DA01-1AX1 |
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| Type designation | OP177B 6" PN/DP 256 Color |
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| Series | Operator Panels 170 series |
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| Manufacturer status | discontinued by the manufacturer, no longer available new since October 2026 |
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| Predecessor | 6AV6642-0DA01-1AX0 |
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| ETIM | EC001412 |
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| HS code | 85371098 |
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| Country of origin | DE |
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| Weight | 1,275 kg |
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| Dimensions | 33,20 x 29,90 x 7,60 cm |
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Documentation from the manufacturer
All products of the Operator Panels 170 series series
Faults and fixes 6AV6642-0DA01-1AX1
Is the 6AV6642-0DA01-1AX1 discontinued or in phase-out?
Siemens has published a product note on this (27-09-2013): "Product phase-out SIMATIC OP 77B, TP/OP 177B, TP/OP 277, MP 177, MP 277 and MP 377 ( Entry is replaced by 109486162 )". Phase-out or discontinued means new units get scarce or stop; we supply the 6AV6642-0DA01-1AX1 refurbished and tested from stock, with a 24-month warranty.
Source: Siemens Industry Online Support, 27-09-2013
Siemens FAQ: Why is the selected communication driver marked red in the "Connections" menu in the HMI configuration?
Siemens answers this question in an FAQ for the 6AV6642-0DA01-1AX1 (27-06-2018); the link is below. If that does not solve it, or the unit is defective: we supply the 6AV6642-0DA01-1AX1 refurbished from stock, with a test report and a 24-month warranty.
Source: Siemens Industry Online Support, 27-06-2018
Siemens FAQ: How do you display ALARM_S or ALARM_D messages with process values (so-called associated values) on a WinCC flexible operator panel?
Siemens answers this question in an FAQ for the 6AV6642-0DA01-1AX1 (20-08-2010); the link is below. If that does not solve it, or the unit is defective: we supply the 6AV6642-0DA01-1AX1 refurbished from stock, with a test report and a 24-month warranty.
Source: Siemens Industry Online Support, 20-08-2010
Siemens FAQ: How can you ensure safe shutting down of the Panel Runtime on a Windows-based operator panel if there is a power failure?
Siemens answers this question in an FAQ for the 6AV6642-0DA01-1AX1 (09-06-2010); the link is below. If that does not solve it, or the unit is defective: we supply the 6AV6642-0DA01-1AX1 refurbished from stock, with a test report and a 24-month warranty.
Source: Siemens Industry Online Support, 09-06-2010
Siemens FAQ: Which program changes have to be made in an S5 controller if a line or graphics operator panel with PROFIBUS connection is replaced by a Windows-based operator panel?
Siemens answers this question in an FAQ for the 6AV6642-0DA01-1AX1 (27-11-2009); the link is below. If that does not solve it, or the unit is defective: we supply the 6AV6642-0DA01-1AX1 refurbished from stock, with a test report and a 24-month warranty.
Source: Siemens Industry Online Support, 27-11-2009
Where do I find the manual of the 6AV6642-0DA01-1AX1?
From the manufacturer, free of charge: SIMATIC HMI HMI devices Panels, Industrial Thin Clients/Web Panels - EU Data Act; SIMATIC HMI HMI Device TP 177A, TP 177B, OP 177B (WinCC flexible) (link below). They contain the wiring diagram, LED meanings and the technical data. With every refurbished unit we supply the test report per serial number.
Source: Siemens Industry Online Support, 25-08-2025
Problems with 6AV6642-0DA01-1AX1: screen dark or backlight weak
A screen that keeps getting darker or is only readable with a torch has a worn backlight; on older panels (OP, TP, MP) that is a CCFL tube, on newer ones LEDs. A screen that stays off while the panel still communicates points to the backlight supply or inverter. Both are replaced in a refurbishment; a refurbished panel usually costs less than a single repair plus the downtime.
6AV6642-0DA01-1AX1: touch does not respond or responds in the wrong spot
If the touch screen responds offset, recalibrate it first (Control Panel or Loader, touch calibration). Dead zones, ghost touches or a corner that no longer responds are a worn touch foil; that is replaced in a refurbishment. On key panels (OP, keypad) worn membrane keys are the equivalent.
6AV6642-0DA01-1AX1 starts in the Loader or shows no project
If the panel starts in the Loader (Transfer, Start, Control Panel) without opening the project, the project is no longer present or is corrupted. Download it again from WinCC flexible, WinCC or TIA Portal, or restore a backup with ProSave. Without the project file this cannot be recovered: always keep a backup of every panel in the installation.
6AV6642-0DA01-1AX1: #### in the fields or connection to the PLC lost
Hashes in the fields mean the panel does not get its tags from the PLC. Check the connection settings (PROFIBUS address and baud rate, or IP address and rack/slot), the cable and whether the PLC is in RUN. After replacing the panel the same connection settings must be in the project and the project's runtime version must match the panel type.
Fault not fixed: replace, exchange or repair the 6AV6642-0DA01-1AX1?
Replacing from stock is the fastest route when a machine is down. Van Haelen supplies the 6AV6642-0DA01-1AX1 refurbished (tested, with a test report per serial number) or new in factory packaging, with a 24-month warranty. The current lead time is shown with the condition on this page. Prefer an exchange: you get a refurbished unit straight away and return the faulty one within 14 days. Repairing your own unit is also possible: diagnosis, then a fixed price.
What information should I send for a quick diagnosis?
A photo of the rating plate (order number, product version, firmware), the exact fault code or LED state, when the fault occurs (at power-up, on enable, under load) and what you have already tried. For PLCs an export of the diagnostic buffer, for drives the parameter set. With that we can usually say the same day whether replacing, exchanging or repairing is best.
Frequently asked questions
Is the 6AV6642-0DA01-1AX1 still available?
Not new from the manufacturer any more: the 6AV6642-0DA01-1AX1 was discontinued since October 2026. Van Haelen supplies it refurbished and tested.
Does the 6AV6642-0DA01-1AX1 replace the 6AV6642-0DA01-1AX0?
Yes. According to the manufacturer the 6AV6642-0DA01-1AX1 is the successor of the 6AV6642-0DA01-1AX0. Before replacing, check that the project and the connections match the new version; if in doubt we also supply the 6AV6642-0DA01-1AX0 itself, refurbished or new, as long as it can be found.
What does refurbished mean?
Cleaned, inspected, aged or critical components replaced and tested to our test protocol for this product family. You get a 24-month warranty, a test report and a serial number label.
What should I check when replacing a 6AV6642-0DA01-1AX1?
Back up the project before replacing the panel and check that the project's software version matches the panel.
Can I exchange or repair my faulty unit?
Yes. With an exchange Van Haelen supplies a refurbished unit straight away and you return the faulty one. With a repair you first get a diagnosis and then a fixed price, with test report and warranty.