Siemens Simatic S7 OP77B Operator panel, display backlit Part number 6AV6641-0CA01-0AX1

Product Overview

The Siemens 6AV6641-0CA01-0AX1 is a SIMATIC Operator Panel OP77B featuring a 4.5-inch monochrome STN display with a resolution of 160 × 64 pixels. Designed for efficient operation and monitoring in industrial automation, it includes a membrane keyboard, multiple communication interfaces, and a robust front panel with IP65 protection. The panel is suitable for small to medium-sized machines and systems that require reliable HMI functionality.

Key Features

• Compact 4.5" STN monochrome display (160 × 64 pixels)
• Membrane keyboard with 8 function keys (4 with LEDs) and numeric keypad
• Interfaces include RS-422, RS-485, USB, and PROFIBUS DP
• Supports MMC or CompactFlash memory cards for data storage
• Front panel protection rating of IP65 for industrial environments
• Operating temperature range: 0 °C to +50 °C
• Compact, durable design for long service life

Technical Specifications

• Product Series: SIMATIC HMI Operator Panel OP77B
• Article Number: 6AV6641-0CA01-0AX1
• Display Type: Monochrome STN LCD
• Display Size: 4.5 inches (114 mm)
• Resolution: 160 × 64 pixels
• Keyboard Type: Membrane with function, system, and alphanumeric keys
• Interfaces: RS-422, RS-485, USB, PROFIBUS DP, MMC slot
• Protection Class: IP65 front, IP20 rear
• Mounting Cut-Out: 135 mm × 171 mm
• Depth: Approx. 38.5 mm
• Weight: Approx. 0.5 kg
• Operating Temperature: 0 °C to +50 °C
• Storage Temperature: -20 °C to +60 °C
• Status: Discontinued (available as spare part)

Compliance & Certifications

• Complies with Siemens SIMATIC industrial quality standards
• Meets EMC and low-voltage directive requirements
• Certified for use in industrial and marine applications
• RoHS-compliant

Applications

The Siemens 6AV6641-0CA01-0AX1 OP77B is ideal for small machine applications, conveyor systems, and production environments where a compact and reliable HMI is required. Its robust design and flexible communication interfaces make it suitable for both standalone machines and networked automation systems using PROFIBUS. Although discontinued, it remains widely used as a replacement or retrofit panel in existing installations.