SIEMEN 6ES7321-1EH01-0AA0 Digital Input Module

Product  Highlights  

◎ Performs regulatory, logic, timing, and sequential control together with connected Fieldbus 

Modules (FBMs)

◎ Performs data acquisition and alarm detection and notification

◎ Supports up to 128 200 Series FBMs, or up to 128 of a combination of 100 Series FBMs and 

200 ◎Series FBMs (with no more than 64 100 Series FBMs in this configuration) No Fieldbus 

Communication Module is required.

◎ No Fieldbus Expansion Module is required for Expanded fieldbus support.

◎ Supports self-hosting mode, which allows the FCP280 to boot itself with a valid control 

database even without its host workstation

◎ Offers unique, patented, fault-tolerant operation using two control modules to greatly improve 

reliability relative to other process controllers

◎ Offers on-line image upgrade (OLUG) of a fault to lerant FCP280 without shutting down the process

◎ Liquid Crystal Display (LCD) displays letterbug and real-time roles and statuses

◎ Connects to The Mesh control network via standard fiber optic or copper 100  Mbps Ethernet 

cables

Other product variants