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Description: The Siemens 6ES7321-1BH01-0AA0 is a simatic S7-300. 6ES73211BH010AA0 is a digital input SM 321, optically isolated, 16 DI, 24 V DC, and 20 PIN. Successor number: 6ES7321-1BH02-0AA0.
Availability last updated at 09:00 am Eastern Time November 26th, 2015