SIEMENS 6AV6642-0BC01-1AX1

What is 6AV6642-0BC01-1AX1 and where is it used?

The 6AV6642-0BC01-1AX1 is a SIEMENS SIMATIC TP177B 6" DP Blue Mode Touch Panel for machine and system operation. The device is designed for visualisation tasks where operators need to display process values, enter data, acknowledge alarms or manage recipes. Typical applications include existing installations with SIMATIC S7-200, S7-300 or S7-400 controllers where HMI communication is carried out via MPI or PROFIBUS DP. For maintenance personnel, the panel is particularly relevant when existing visualisation systems must remain in operation despite the age of the platform. For purchasing departments, the exact part number is important because TP177B variants differ significantly in terms of interfaces, display technology and engineering environment.

Overview of the key technical specifications and their significance

The panel features a 5.7-inch STN display with a resolution of 320 × 240 pixels and 4 blue-grey shades. It is not a colour TFT display but a robust Blue Mode monochrome display, which is sufficient for many older machine concepts where clear operating screens are more important than graphics-intensive interfaces. Operation is performed via an analogue resistive touch screen, making it suitable for use with gloves or a stylus in many industrial environments. The device is powered by 24 V DC and has a nominal current consumption of 0.24 A. Relevant communication interfaces include RS422, RS485 and USB, while PROFINET is not available. The front panel provides IP65 protection, while the rear is rated IP20. User memory capacity is 2 MB, and the backlight is specified with an MTBF of 50,000 hours at 25 °C.

Product status, life-cycle status and obsolescence status

For the 6AV6642-0BC01-1AX1, the product page specifies an EOP (End of Production) date of 15 February 2021. In current Siemens life-cycle documentation, the device is listed with PLM status P.M490. Siemens defines P.M410 as product cancellation and P.M490 as product discontinuation within the HMI product life-cycle model. For procurement and plant operation, this means that purchasing new units is no longer the standard approach, and continued operation increasingly depends on spare-part management, repair services, exchange units and planned migration strategies. As the manufacturer-recommended successor within the Comfort Panel family for the TP177B Mono product class, Siemens specifies the SIMATIC HMI TP700 Comfort, 6AV2124-0GC01-0AX0. This is particularly relevant for operators planning long-term standardisation rather than simply replacing a failed device.

Available EICHLER services and when they are relevant in practice

For this panel, EICHLER offers several practical options: repair, exchange, used equipment and new units on request. Repair services are specified with a turnaround time of 1–3 days and include technical cleaning, preventive maintenance, comprehensive functional testing and a minimum 24-month warranty. This option is particularly attractive when the existing project, installation cut-out and communication architecture are to remain unchanged. An exchange unit becomes attractive when downtime costs exceed the time required for repair. Used units are useful when obsolescence has already become a factor and a functioning replacement is needed quickly. The optional test report provides an additional level of assurance for purchasing, quality assurance and documentation requirements in regulated production environments.

Is 6AV6642-0BC01-1AX1 still available as a new device?

The device is no longer part of the active standard product portfolio. On the EICHLER product page, new units are only offered on request, while repair, exchange and used equipment are presented as the primary procurement options. Siemens also lists the panel in the advanced life-cycle status P.M490. In practical terms, this means that repaired, refurbished or exchange units are often more readily available than factory-new stock when a replacement is required at short notice.

Which successor is specified for the TP177B 6" DP Blue Mode?

In the Siemens Comfort Panel migration guide, the TP700 Comfort, 6AV2124-0GC01-0AX0, is specified as the successor for the TP177B Mono product class. This becomes particularly relevant when an installation is not only being repaired but is also being prepared for long-term modernisation. It is important to note that a successor is not simply a direct part-number replacement; project migration, display format, operator screens and installation requirements must also be evaluated.

Which software is required to configure or maintain 6AV6642-0BC01-1AX1?

Siemens specifies WinCC flexible Compact from version 2005 as the classic engineering tool for this panel. According to the technical documentation, WinCC flexible Standard and WinCC flexible Advanced are also supported. Additional Siemens information lists WinCC Comfort, WinCC Advanced and WinCC Professional within the TIA Portal environment as supported engineering platforms, while STEP 7 Basic and STEP 7 Professional are not specified as panel configuration tools. For service work, backups and operating system updates, ProSave remains an essential utility.

Which interfaces and controllers are supported by the panel?

The TP177B 6" DP Blue Mode is designed primarily for existing MPI/PROFIBUS DP environments. The available physical interfaces are RS422, RS485 and USB. Siemens lists compatibility with S7-200, S7-300/400, S5 via PROFIBUS DP, SINUMERIK, SIMOTION and various third-party drivers. PROFINET is not part of the standard functionality of this particular variant. This makes the exact article number especially important during spare-part procurement, because changing from a PN/DP version to a DP Blue Mode version affects not only the display technology but also the communication platform.

When is repair more sensible than migrating to a newer panel?

Repair is usually the better option when the system must be returned to operation quickly and the existing project, installation cut-out, wiring and communication structure are to remain unchanged. This is particularly true for isolated failures in otherwise stable existing installations. Migration to a Comfort Panel becomes more attractive when multiple devices are affected, life-cycle risks are increasing or a broader visualisation modernisation project is already planned. Since EICHLER offers repair, exchange and used units for this model, while Siemens provides a defined Comfort Panel successor, maintenance and purchasing teams can select the most appropriate path based on downtime requirements, budget and long-term strategy.