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6AV6641-0BA11-0AX1

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Operated through membrane keys, the Siemens 6AV6641-0BA11-0AX1 is a SIMATIC OP77A 4.5-inch operator panel used to display process data and send commands over MPI or PROFIBUS DP.
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Technical specifications for 6AV6641-0BA11-0AX1

  • Manufacturer:
    Siemens
  • Part Number:
    6AV6641-0BA11-0AX1
  • Product Family:
    Siemens Simatic HMI
  • Product Type:
    SIMATIC OP77A 4.5-Inch Operator Panel
  • Stock:
    1
  • Display:
    4.5-inch STN monochrome LCD
  • Resolution:
    160 x 64 pixels
  • Backlight:
    Integrated
  • Function Keys:
    8, including 4 with LEDs
  • Operation:
    Membrane keyboard
  • Supply Voltage:
    24 V DC
  • Current Consumption:
    0.2 A
  • Processor:
    ARM
  • User Memory:
    256 KB
  • Interfaces:
    RS422 and RS485
  • Maximum Bus Rate:
    1.5 Mbit/s
  • Protocols:
    MPI and PROFIBUS DP
  • Ethernet:
    Not provided
  • USB:
    Not provided
  • Memory Card Slot:
    Not provided
  • Maximum Screens:
    500
  • Maximum Messages:
    1,000
  • Maximum Recipes:
    5
  • Maximum Variables:
    1,000
  • Runtime Languages:
    5
  • Front Protection:
    IP65
  • Rear Protection:
    IP20
  • Operating Temperature:
    0 to +50 °C
  • Maximum Mounting Angle:
    80° without external ventilation
  • Weight:
    1.1817 lbs (0.536 kg)
  • Estimated shipping dimensions:
    15.7x19.4x5.6cm
  • Tariff Code:
    85371098
  • Country of origin:
    Germany
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Key Operation Serial Link Project Limits Panel Mounting

Features:

  • A 4.5-inch monochrome display presents configured process screens at 160 x 64 pixels.
  • Eight function keys and the membrane keypad provide all operator input without a touch layer.
  • MPI or PROFIBUS DP communication uses the panel’s serial interface at up to 1.5 Mbit/s.
The OP77A links physical key actions to the process variables and commands defined in its WinCC flexible project.

Four illuminated function keys can return configured status information beside the monochrome screen.

Its protected front remains available to the operator while supply and serial wiring stay inside the cabinet.

The Siemens 6AV6641-0BA11-0AX1 SIMATIC OP77A Operator Panel may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6AV6641-0BA11-0AX1 SIMATIC OP77A Operator Panel 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.

Assigning commands to the physical keypad

  • Function keys: Eight keys call the actions assigned in the HMI project.
  • LED feedback: Four function keys include indicators that can show configured states.
  • System keys: Navigation and value entry use dedicated membrane controls.
  • No touch layer: Every operator action must be reachable through a programmed physical key.

Using one interface for controller data

  • MPI mode: The serial hardware can exchange data with the configured MPI station.
  • PROFIBUS mode: The same panel interface can instead operate on the assigned PROFIBUS DP network.
  • Bus settings: Address and transmission rate in the project must match the connected controller network.
  • Interface limit: Ethernet is not available as an alternative communication path on this model.

Allocating the available runtime resources

  • Screen set: The project can contain as many as 500 configured screens.
  • Message set: Up to 1,000 messages share the project resources.
  • Variable set: The documented ceiling is 1,000 process variables.
  • Language set: As many as five runtime languages can be included within the memory limit.

Keeping the front and rear environments separate

  • Operator side: The installed front surface provides IP65 protection at the cabinet face.
  • Cabinet side: Rear connections remain IP20 and require the enclosure for protection.
  • Panel angle: The mounting angle may reach the documented 80° limit without external ventilation.
  • Thermal path: Cabinet temperature and free space around the rear determine heat dissipation.
Description
In a SIMATIC operator station, Siemens 6AV6641-0BA11-0AX1 is the OP77A panel that converts process variables from an MPI or PROFIBUS DP controller connection into a local monochrome display and returns entries made through its membrane keyboard. It provides a key-operated HMI rather than a touch interface.

Eight function keys on 6AV6641-0BA11-0AX1 call the screen or machine actions assigned in the WinCC flexible project, and four of those keys include LEDs that can reflect configured states. The remaining system keys support navigation and value entry without requiring a pointing device.

The serial interface of 6AV6641-0BA11-0AX1 carries the configured MPI or PROFIBUS DP exchange at up to 1.5 Mbit/s. Because this OP77A version has no Ethernet, USB or memory-card slot, project transfer and controller communication must use the supported serial route.

Project memory in 6AV6641-0BA11-0AX1 holds the configured screens, messages, variables and small recipe set executed by the ARM processor. Those resource limits belong to the complete project, so screen graphics and multilingual text share the same available user memory.

Installed through the cabinet cutout, 6AV6641-0BA11-0AX1 places its IP65 display and keys on the operator side while the IP20 supply and communication connections remain inside the enclosure. The permitted mounting angle and temperature apply to this installed relationship, not to the front face alone.
Alternative Names
6AV66410BA110AX1 6AV6 641-0BA11-0AX1 6AV6641 0BA11 0AX1 Siemens 6AV66410BA110AX1 SIMATIC OP77A Panel OP 77A MPI PROFIBUS HMI 4.5-Inch Key Operator Panel Siemens Monochrome Membrane HMI
Technical notes
Siemens 6AV6641-0BA11-0AX1 is a key-operated OP77A without touch, Ethernet, USB or removable-card interfaces. Preserve the MPI/PROFIBUS address, 24 V DC supply and cabinet cutout when transferring an existing project.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Why will a touch-based project not operate correctly on 6AV6641-0BA11-0AX1?
The 6AV6641-0BA11-0AX1 has no touch layer, so every required action must be assigned to its membrane and function keys.
Which network settings must be retained when replacing 6AV6641-0BA11-0AX1?
Preserve the MPI or PROFIBUS DP protocol, station address and bus rate of 6AV6641-0BA11-0AX1 together with the matching controller project.
Can an Ethernet cable be used to transfer or run a project on 6AV6641-0BA11-0AX1?
No. The 6AV6641-0BA11-0AX1 has no Ethernet port; supported controller communication and transfer use its documented serial interface.
What do the four illuminated function keys indicate on 6AV6641-0BA11-0AX1?
Their meaning is assigned in the 6AV6641-0BA11-0AX1 project, so compare the LED tags and configured variables rather than assuming fixed functions.
How can project size prevent a download to 6AV6641-0BA11-0AX1?
Screens, messages, variables, recipes and languages all share the 256 KB user memory of 6AV6641-0BA11-0AX1, so the compiled project must stay within that limit.
What enclosure detail protects the rear of 6AV6641-0BA11-0AX1?
Only the front of installed 6AV6641-0BA11-0AX1 reaches IP65; the IP20 rear supply and bus connections depend on the cabinet enclosure.