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Siemens 6AV6641-0BA11-0AX1 SIMATIC HMI OP 77A Operator Panel

Siemens 6AV6641-0BA11-0AX1 SIMATIC HMI OP 77A Operator Panel

Product Name: SIMATIC HMI OP 77A Operator Panel

Brand Name: Siemens

Model Number: 6AV6641-0BA11-0AX1

Place of Origin: Germany

Warranty: 12 Months

Whatsapp: +86 18020776782

Email: [email protected]

Overview
Contact info
Specifications
Description
Project Backup
Commercial Term
About Company
FAQ
Other Products
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Key-Operated HMI for Legacy MPI and PROFIBUS Machines

Siemens 6AV6641-0BA11-0AX1 is the SIMATIC HMI OP 77A operator panel with a 4.5-inch monochrome display and key operation.

Selection checkpoint: Match the OP 77A order number, project target, MPI/PROFIBUS settings and key assignments before approving a replacement.

Contact info

CONTACT

Jim Pei

[email protected]

+86 180 2077 6782

Specifications

Technical parameter	Value
Product type designation	SIMATIC HMI OP 77A
Article number	6AV6641-0BA11-0AX1
Display	4.5-inch STN monochrome
Resolution	160 x 64 pixels
Operator controls	Membrane keyboard
Programmable keys	8 function keys, 4 with LEDs
Communication	RS422 / RS485 for MPI or PROFIBUS DP
Rated supply	24 V DC
Front protection	IP65 when installed
Engineering	WinCC flexible
Manufacturer	Siemens

Description

6AV6641-0BA11-0AX1 provides a compact 4.5-inch monochrome operator interface with membrane keys for legacy SIMATIC machines. It communicates through the documented serial fieldbus interface and is engineered with the matching WinCC flexible device support.

Before removing an installed OP 77A, preserve the project, panel address, transfer settings and key map. Restore the replacement against the archived machine data and verify communication and operator actions before production use.

Project Backup

01	Key-based operation Use the programmed membrane keys for machine commands and navigation.

02	Fieldbus connection Communicate through the documented MPI or PROFIBUS link.

03	Compact visualization Display alarms, values and operating screens on the monochrome panel.

04	Archive-led service Recover the panel from the approved WinCC flexible project.

Commercial Term

Quotation	Payment	Lead time	Shipping	Warranty
Contact us for current price and availability	T/T or agreed terms	Confirmed with the quotation	DHL, FedEx, UPS or agreed freight	12 months

About Company

SupplyPLCs supports exact-model review, product-condition confirmation and responsive industrial automation sourcing.

Share the complete order number, installed-system context and destination. Our team will coordinate availability, shipment options and available official product documentation.

FAQ

Q1	How can I verify that 6AV6641-0BA11-0AX1 is the same OP 77A variant used in my machine? Compare the complete rear-label order number, 4.5-inch key-panel layout, communication connector and project target. Confirm the archived WinCC flexible project selects OP 77A before approving the replacement.

Q2	What should I preserve before removing 6AV6641-0BA11-0AX1 from service? Archive the editable HMI project, record the panel address and transfer parameters, and photograph the rear wiring and function-key labels. Export any supported operating data required by the machine recovery plan.

Q3	Why might 6AV6641-0BA11-0AX1 show screens correctly but fail to exchange data with the PLC? Check the MPI or PROFIBUS address, baud rate, cable termination and configured PLC partner. The visible project can run locally even when its communication settings do not match the installed network.

How should I diagnose a programmed key on 6AV6641-0BA11-0AX1 that no longer operates the expected function?

Compare the loaded project with the approved key map and use PLC diagnostics to trace the assigned HMI event. Confirm the correct project is present before treating the membrane key or LED as a hardware failure.

Q5	Can 6AV6641-0BA11-0AX1 be replaced directly by an OP 77B without project review? No direct equivalence should be assumed. The project target, available memory, interfaces and supported migration path must be reviewed, then the converted project must be tested with the machine offline.

Q6	Which information should accompany an RFQ for 6AV6641-0BA11-0AX1? Provide the complete order number, WinCC flexible version, PLC communication details, panel photographs and key-label record. This helps distinguish the OP 77A from other OP 77 models with similar front dimensions.

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