I/O Module Functions - Honeywell Experion 8 Series Technical Information

Series 8 Controller and I/O Specification, S803-150-500
Vertical mounting for more effective wiring since most field wiring applications require entry from the
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top or bottom of the systems cabinet
An "information circle" for a quick visual cue to draw the Maintenance Technician's eye to important
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status information
"Tilted" design for effective heat management within the cabinet enclosure. Since Series C allows for
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a significant increase in cabinet density, an effective heat management system is critical for high
systems availability
Input and output circuits are protected from shorts to alleviate the need for in-line fusing, reducing
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installation and maintenance costs
Series 8 IOTAs combine multiple functions into a single piece of equipment:
Single and redundant configurations
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On-board termination of process signals
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On-board signal conditioning
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On-board connection to appropriate networks (FTE, I/O LINK)
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Field power distribution without external marshalling
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IOM plugs into the IOTA and receives power from the IOTA
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The IOTA receives its power through cables from header board
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2.2.2.

I/O Module Functions


High Level Analog Input /HART Input Module (16pt) – The High Level Analog Input Module supports both
high level analog and HART inputs. Analog inputs are typically 4-20mA DC for both traditional and HART
devices. HART data can be used for status and configuration. HART data, such as the secondary and tertiary
variables, can also be used as process control variables. Two versions Single ended and Differential type are
available.

High Level Analog Input w/o HART (16pt) – The High Level Analog Input Module supports high level analog
inputs Analog inputs are typically 4-20mA DC for traditional devices.

Analog Output/HART Output Module (16pt) – The Analog Output Module supports both standard 4-20mA
DC outputs and HART transmitter outputs.

Analog Output w/o HART (16pt) – The Analog Output Module supports standard 4-20mA DC outputs.
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Digital Input 24 VDC (32pt) – Digital input sensing for 24V signals
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Digital Input Sequence of Events (32pt) – Accepts 24VDC discrete signals as discrete inputs. The inputs
can be time tagged to support 1ms resolution Sequence of Events.

Digital Input Pulse Accumulation (32pt) – Accepts 24VDC discrete signals as discrete inputs. The first
16 channels can be configured as Pulse accumulation to support Pulse Accumulation and frequency
measurement on per channel basis. Channels 17 – 32 can be configured as DI.

Digital Output 24 VDC (32pt) – Current sinking digital outputs. Outputs are electronically short-circuit
protected.

DO Relay Extension Board (32pt) – Digital output with NO or NC dry contacts. It can be used for low power
or high power applications.

Low Level Analog Input – RTD & TC (16pt) – Provides thermocouple (TC) and resistance temperature
device (RTD) inputs.
Version 1
7
July 2017