The Siemens 6ES7972-0CA21-0XA0 is a PC Adapter that provides RS232 and RS485 communication interfaces for programming and connecting to Siemens PLCs. It sits in the PLC Expansion Modules category, typically used during commissioning or for ongoing maintenance access to a control system.
Siemens 6ES7972-0CA21-0XA0 PC Adapter, RS232/RS485, Mature
MPN6ES7972-0CA21-0XA0
Siemens 6ES7972-0CA21-0XA0 PC Adapter, RS232 / RS485, PLC Expansion Module, mature lifecycle, 0.05 kg.
$174.26Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Weight | 0.05 kgs |
Product details
MPN
6ES7972-0CA21-0XA0