ADD5110 6FL7820-8CA11 | SIEMENS DUAL READER INTERFACE MODULE

Siemens ADD5110 6FL7820-8CA11 Dual Reader Interface Module

The Siemens ADD5110 6FL7820-8CA11 is a professional-grade dual reader interface module designed for advanced access control and security management systems. This versatile module supports both RS485 and Wiegand communication protocols, enabling seamless integration with card readers, biometric scanners, and centralized access control platforms across commercial, industrial, and institutional facilities.

Technical Specifications

Key Features & Advantages

• Dual Protocol Support: Native RS485 and Wiegand compatibility eliminates the need for protocol converters
• Flexible Reader Integration: Connect RFID proximity readers, magnetic stripe readers, or biometric devices simultaneously
• Robust Lock Control: 2A relay outputs drive electromagnetic locks, electric strikes, and motorized barriers
• Wide Voltage Range: 12-32V DC operation accommodates diverse power infrastructure
• Industrial-Grade Reliability: Extended temperature range and conformal coating for harsh environments
• Scalable Architecture: Daisy-chain multiple modules via RS485 for enterprise-wide deployments

Application Scenarios

Multi-Door Access Control Systems: Deploy the ADD5110 module in conjunction with Siemens 6ES7972-0AA02-0XA0 RS485 Repeater to extend communication distances beyond 1200 meters in large facilities. Integrate with Siemens CP 443-1 Communications Processor for centralized monitoring via Ethernet/IP networks.

Industrial Facility Security: Combine with Siemens S7-1500 Digital Input Module to monitor door position sensors, tamper switches, and emergency exit status. The module’s RS485 interface communicates directly with Siemens CPU 1516-3 PN/DP controllers for integrated building automation and security workflows.

Data Center Perimeter Protection: Implement multi-factor authentication by pairing card readers with biometric scanners through the dual reader inputs. Interface with ABB CI857K01 Ethernet Interface Module for SCADA integration and real-time access event logging across distributed control systems.

System Integration & Compatibility

The ADD5110 module seamlessly integrates within Siemens building automation ecosystems and third-party access control platforms. Connect to Siemens PROFIBUS DP Bus Connector for high-speed fieldbus communication, or utilize the Wiegand interface for legacy reader compatibility. For power distribution, pair with Honeywell Power Supply Module to ensure stable 24V DC operation across multiple access points.

Complete Access Control Solutions

Build comprehensive security architectures by combining the ADD5110 with complementary components such as Siemens S7-1500 Digital Output Module for alarm annunciation and ABB CI867AK01 Modbus TCP Interface for integration with third-party video management systems and intrusion detection platforms.

Installation & Configuration

The module supports both DIN rail mounting for control panel installation and wall mounting for standalone deployment. RS485 termination resistors are user-selectable via onboard jumpers. Wiegand data format is auto-detected for 26-bit, 34-bit, and 37-bit card formats. LED indicators provide real-time status for power, communication, and reader activity.

Frequently Asked Questions

Q: Can this module control two separate doors independently?
A: Yes, the ADD5110 supports two independent reader inputs with dedicated relay outputs, allowing simultaneous control of two access points with separate credential validation.

Q: What is the maximum cable length for Wiegand readers?
A: Recommended maximum Wiegand cable length is 150 meters using 22 AWG shielded twisted-pair cable. For longer distances, use the RS485 interface which supports up to 1200 meters.

Q: Is this module compatible with HID proximity readers?
A: Yes, the module supports standard Wiegand output from HID, AWID, Indala, and other major proximity card reader manufacturers. Ensure readers are configured for 26-bit or 34-bit Wiegand format.

Q: Can I integrate this with a Siemens S7-1500 PLC?
A: Absolutely. The RS485 interface connects directly to S7-1500 communication modules such as the Siemens RS485-IS Coupler for seamless PLC integration and custom access control logic programming.

Q: What type of locks can the relay outputs control?
A: The 2A relay outputs can drive electromagnetic locks up to 24W, electric strikes, motorized deadbolts, and gate operators. For higher current loads, use an external contactor or power relay.

Q: Does the module store access credentials locally?
A: No, the ADD5110 is an interface module that transmits credential data to a host controller or access control panel. Credential validation and access decisions are performed by the connected system.

Warranty & Technical Support

Every Siemens ADD5110 6FL7820-8CA11 module is backed by a comprehensive 12-month warranty covering manufacturing defects and component failures. Our technical support team provides application engineering assistance, wiring diagrams, and integration guidance for complex multi-site deployments.

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