Siemens 6AV3971-1CA02-0CA0 Simatic TD20 Memory Submodule

Siemens 6AV3971-1CA02-0CA0 Simatic Memory Submodule

Availability: 1 left in stock

Description The Siemens 6AV3971-1CA02-0CA0 is a specialized 128 Kbyte memory submodule engineered for the legacy Simatic TD20 operator interface. This...

SKU: 6AV3971-1CA02-0CA0

Manufacturer: Siemens
Product No.: 6AV3971-1CA02-0CA0
Product Type: Memory Submodule
Product Origin: Germany
Payment:T/T, Western Union
Weight: 80g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Description

The Siemens 6AV3971-1CA02-0CA0 is a specialized 128 Kbyte memory submodule engineered for the legacy Simatic TD20 operator interface. This component includes factory-preloaded firmware tailored for the AS511 communication protocol, enabling efficient data transfer between the text display unit and the connected programmable logic controller. It serves as the primary storage medium for screen configurations, variable mapping, and essential system parameters required for HMI operation. As this component reached its end-of-life status in early 2005, it remains a vital spare part for operators managing legacy automation systems in industrial processing and mining environments.

Features

Non-volatile EEPROM storage architecture ensures data retention without the need for battery backup.
Optimized for direct integration with the Simatic TD20 operator terminal.
Pre-configured with AS511 protocol support for reliable serial communication.
Compact plug-in design for easy installation into the terminal expansion slot.

Technical Specifications

Model	6AV3971-1CA02-0CA0
Brand	Siemens
Series	Simatic TD20
Memory Capacity	128 Kbytes
Interface	48-Pin Header
Operating Voltage	5 VDC (Host Powered)
Operating Temperature	0 to 50 deg C
Storage Temperature	-20 to 70 deg C

Installation Guidelines

Ensure the TD20 terminal is completely powered down before attempting to insert or remove the memory submodule to prevent electrical damage.
Handle the module by its edges to avoid electrostatic discharge (ESD) damage to the sensitive onboard components.
Align the 48-pin connector carefully with the host slot to prevent bent pins or improper seating.
Verify that the module is fully seated in the expansion slot before restoring power to the system.

FAQ

Is this module compatible with newer HMI models?

No, this memory submodule is specifically designed for the legacy TD20 operator interface and is not compatible with modern Siemens HMI systems.

Does this card require a backup battery?

No, the module utilizes internal EEPROM technology, which provides non-volatile storage and does not require battery buffering to maintain data integrity during power loss.

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