Honeywell 900U02 - 0100 Safety - Certified Universal I / O Module HC900 Control System

Honeywell 900U02 - 0100 Safety - Certified Universal I / O Module HC900 Control System

Each channel of the module can be soft configured as AI, AO, DI or DO.

Features supported by UIO are:

• Channels soft configurable as AI, AO, DI or DO (All channel are sourcing type)

• SOE (Sequence of Events) with resolution of 1 mS (supported only in non-redundant UIO configuration).

• Simplified wiring for SIL-2 applications due to single module solution

Note: The SIL-2 UIO has inbuilt advanced diagnostics such as, SIL certified microcontroller and critical voltage monitoring.

Due to its higher reliability, for SIL-2 UIO there is no need to do 2001 or 2003 for wiring of IOs for SIL-2 application.

For more details refer safety manual (51-52-25-153) and PFD calculation sheet

• Line Monitoring for all configurations

• Short circuit protection for DO

• Per channel Safety Shutdown eliminates need for external master relay

• HART Supported

• Single or Redundant Power Capability to Module

A green blinking status LED on the module indicates when the module is being scanned. A red status LED when module or channel diagnostics exist. For channels configured as Digital input a closed external circuit causes current flow from UIO to establish an ON state. Logic in the controller allows this state to be inverted when necessary.

Analog outputs can only be configured on channels 9 to 16. The Analog Output provides 4 to 20 mA outputs that may be scaled by the user to any span within this range on a per output basis.

Digital Outputs provide over current protection ..

In case of short circuit for any output channel, that channel is switched off. Power cycling is not required to reset the module.

For channels which are configured as output (AO/DO) a user specified failsafe value is supported to allow predictable operation in the event of a communication loss between controller and IO module.Requires 20 pin-terminal terminal block.