The Traditional I/O subsystem includes:

• I/O interface carrier (a DIN rail surface mounted)

on which all I/O related components are installed.

• Bulk AC to 24V DC power supply for field devices.

 An I/O interface consisting of an I/O card and an

I/O terminal block.

• A variety of analog and discrete I/O cards enclosed

in a common form factor that easily plugs into the

I/O interface carrier.

• A variety of I/O terminal blocks mounted on the I/O interface

carrier that can be pre-wired before I/O card installation.

The DeltaV system provides control module level time

stamping for log events and alarms. For greater event

resolution, the 16-channel Sequence-of-Events DI card

can provide signal driven events to a resolution of +/- 0.25 ms

per card, or within 1 ms per controller. Please refer to

the Sequence-of-Events PDS for more information on

Sequence-of-Event data collection and system options for this feature.