How many BMENOC0321 can be configured in a Unity project

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A maximum of 2 BMENOC0321 modules can be used in the local rack of the M580 system to provide Ethernet transparency between a control network and field devices.
Note: If 2 BMENOC0321 are in the same rack only 1 may have IP Forwarding enabled.

Note - The BMENOC0321 can also be used ian a M580 Hot standby system. The M580 Hot Standby uses two physicals modules. One in the Primary rack and another in the Standby rack