2. Series 8 I/O Planning
and Design
2.2. Series 8 I/O appearance and features
26
Series 8 I/O User's Guide
R500
Honeywell
April 2017
I/O module/IOTA
Feature/function
Analog Output
withHART
Extensive self-diagnostics
Optional redundancy
HART capable, multivariable instruments
Safe-state (FAILOPT) behaviors
Each channel can be configured to HOLD LAST
VALUE, or SHED to a SAFE VALUE.
Analog Output
Extensive self-diagnostics
Optional redundancy
Safe-state (FAILOPT) behaviors
Each channel can be configured to HOLD LAST
VALUE, or SHED to a SAFE VALUE.
Digital Input 24VDC
Extensive self-diagnostics
IOM redundancy
Input direct/reverse
Internal or external field power selections
Galvanic isolation
Low Latency / High Speed Scanning mode
Digital Input
Sequence of Events
DIGITAL INPUT
SEQUENCE OF
EVENTS
Extensive self-diagnostics
Optional redundancy
1ms Sequence of Events for Discrete Inputs
Low Latency / High Speed Scanning mode
On board excitation power (no need for marshalling
power)
Direct / Reverse Input Indication
Galvanic isolation