It also supports high-accuracy time stamps.

The Advanced Control Processor is the APM resource dedicated to

executing regulatory, logic, and sequence functions, including an

excellent user programming facility. Because communication and

I/O processing are performed by separate dedicated hardware,

the full power of the Advanced Control Processor can be applied

to control strategy implementation. 

The Advanced I/O Link Interface Processor is the APMM interface

to its I/O subsystem.

The I/O Subsystem consists of the redundant I/O Link and up to 40

redundant I/O Processors. These I/O Processors handle all field I/O

for both data acquisition and control functions. For example, the

I/O Processors provide such functions as engineering unit conversion

and alarm limit checking independent of the Advanced Process Manager

Module.

One IOP which illustrates the advanced capabilities of the APM I/O is

the Smart Transmitter Interface. The Smart Transmitter Interface

processor provides full bi directional communication to Honeywell

smart transmitters, supporting transmitter configuration and improved

data accuracy. This includes the recently introduced Multivariable

transmitter capability. All control operations are performed within the

Advanced Process Manager Module (optionally redundant), with all data

acquisition and signal conditioning being performed in I/O Processors.

For added control security, redundancy is available for several

analog and digital I/O processing devices.

The remote I/O option allows I/O Processors to be remote-mounted

up to 8 kilometers from the APM file. This option uses redundant fiber

optic I/O Link extenders.

The process engineer has complete flexibility of choice in the assignment

of point types and control strategies, within the maximum APMM design

limits.

These selections are implemented using the interactive tools provided

by both the TDC 3000X Universal Station and Universal Work Station.