VIM2 Dual Simplex or Redundant Setups

Two VIM2s can either be setup as a dual simplex or

redundant pair for installations that either consists of

many field devices or require additional communication

resiliency, respectively.

If two VIMs are configured for dual simplex operation, both

VIM2s will work as Standalone units and no redundancy link

cable is installed.

If two VIMs are configured for redundant operation, the

active and standby VIM2s monitor each other with a

continuous status command using the redundancy link

cable supplied with each redundant pair. The active VIM2

communicates over the network to the Industrial Ethernet

device and the standby sends an intermittent signal to the

device to maintain communication integrity.

The Ethernet I/O drivers are available separately from the

VIM2 hardware. Each operating VIM requires one license

for the running protocol. For example, a redundant pair of

VIMs requires two copies of the driver running on that pair,

but an offline spare does not require licensing.