Digital Input Expansion Module
This module is a digital input expansion module for the SIMATIC S7-300 series of Programmable Logic Controllers (PLCs).
The part number 6ES7321-1BH02-0AA0 is a Siemens SIMATIC S7-300 digital input module (SM 321). It is used in industrial automation to interface field devices with a programmable logic controller (PLC).
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TRIO POWER is particularly suited to standard machine production, thanks to 1- and 3-phase versions up to 960 W
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