The Siemens 6AV3971-1NA02-0DA0 is a PLC expansion module, sitting in the PLCs & HMIs category under PLC Expansion Modules. It's the sort of card you'd slot into a Siemens HMI or controller backplane to add I/O or communication — a modular add-on, not a standalone unit.
Siemens 6AV3971-1NA02-0DA0 PLC Expansion Module, Mature Life
MPN6AV3971-1NA02-0DA0
Siemens, PLC Expansion Module, 6AV3971-1NA02-0DA0, 0.02 kg, mature lifecycle.
$156.21Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Weight | 0.02 kgs |
Product details
Frequently asked questions
Will 6AV3971-1NA02-0DA0 drop into a panel specified around 6ES7132-4HB13-0AB0-EACH without rewiring?
The two modules share the same category (PLC Expansion Modules) and weight class, but they are different Siemens part families. The 6AV3971 is an HMI/panel-side expansion card; the 6ES7132 is an ET 200S digital output module. They are not direct drop-in replacements — you'd need to check the backplane compatibility and I/O mapping before swapping.
MPN
6AV3971-1NA02-0DA0