Siemens SM 321, 16*AC 120V, optically isolated, 0.91 kgs, Digital Input Modules.
| Parameter | Value |
|---|---|
| Weight | 0.91 kgs |
The Siemens 6ES7321-1EH00-0AA0 is a SM 321 digital input module providing 16 optically isolated channels rated for AC 120V. It reads 16 discrete AC signals — limit switches, pushbuttons, relay contacts — from the field into the PLC backplane.
It is a Siemens SM 321 digital input module with 16 optically isolated channels rated for AC 120V. It weighs 0.91 kg and mounts in an S7-300 rack.
Yes, the SM 321 series is the standard digital input module for the S7-300 platform. This module plugs directly into the S7-300 backplane bus and is addressed as a standard 16-channel input card.
This module is in EOL hot phase; we source it to order against your RFQ. Availability and pricing are confirmed at quote time.
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