In virtually all configurations, the C300 controller and Series C I/O provides useful, maintainable process equipment
connections in a smaller footprint than existing competitors and Honeywell equivalent products. Installing Series C I/O
modules contributes to overall total installed cost savings.
IOTA sizes vary based on the application. In general, an analog module has 16 points and resides on a 6 inch (152mm)
IOTA for non-redundant applications and a 12 inch (304mm) IOTA for redundant applications. A discrete module has 32
points and resides on a 9-inch (228mm) IOTA for non-redundant applications and a 12 inch (304mm) IOTA for
redundant applications. Specific information on the size of a particular module is described in the Model Number Table.
3.1. 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 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. Two versions are available.
• Analog Output w/o HART (16pt) – The Analog Output Module supports standard 4-20mA DC outputs.
• Digital Input 24 VDC (32pt) – Digital input sensing for 24V signals. Two versions are available.
• Digital Input High Voltage (32pt) – Digital input sensing for 110 VAC, 220 VAC, 125VDC.
• Digital Output 24 VDC (32 pt) – Current sourcing digital outputs. Outputs are electronically short-circuit protected.
Two versions are available.
• Relay Digital Output (32 pt) – Digital output with NO or NC dry contacts. Can be used for low power or high power
applications.
• Temperature Multiplexer (64 pt) – Provides thermocouple (TC) and resistance temperature device (RTD) inputs.
The Multiplexer supports up to four, field proven PMIO FTAs.
• Temperature Multiplexer (64 pt) – Provides thermocouple (TC) and resistance temperature device (RTD) inputs.
The Multiplexer supports up to four, field proven PMIO FTAs
• Pulse Input (8pt) – Provide linear counting, PV generation, and Quaduature Input for Custody Transfer
• Universal Input Output (32 pt) - Supports 32 channels of user configurable IO. Choices available – analog input,
analog output, digital input, and digital output.
