Skip to Content
IONAHow much IO does the IONA have and what are the expansion capabilities

How much IO does the IONA have and what are the expansion capabilities

IONA controllers provide built-in I/O points and support expansion through expansion cards. This guide details the I/O capacity of various IONA models and explains expansion capabilities.

Overview

IONA controllers offer:

  • Built-in I/O: Physical I/O terminals on the controller
  • Expansion Support: Expansion cards for additional I/O
  • Varied Capacity: Different models have different I/O capacity
  • Flexible Configuration: Flexible I/O configuration options

Built-in I/O Capacity

IONA Model Variations

IONA-105:

  • Digital Inputs: Typically 8-16 digital inputs
  • Digital Outputs: Typically 8-16 digital outputs
  • Analog Inputs: Typically 4-8 analog inputs
  • Analog Outputs: Typically 2-4 analog outputs
  • Total Points: Approximately 22-44 points

IONA-205:

  • Digital Inputs: Typically 16-32 digital inputs
  • Digital Outputs: Typically 16-32 digital outputs
  • Analog Inputs: Typically 8-16 analog inputs
  • Analog Outputs: Typically 4-8 analog outputs
  • Total Points: Approximately 44-88 points

IONA-305:

  • Digital Inputs: Typically 32-64 digital inputs
  • Digital Outputs: Typically 32-64 digital outputs
  • Analog Inputs: Typically 16-32 analog inputs
  • Analog Outputs: Typically 8-16 analog outputs
  • Total Points: Approximately 88-176 points

Note: Actual I/O counts vary by specific model and configuration. Consult product documentation for exact specifications.

I/O Type Details

Digital Inputs (DI):

  • Voltage Levels: Typically 24VDC or dry contact
  • Isolation: Optically isolated inputs
  • Count: Varies by model (8-64 typical)
  • Applications: Switch status, sensor inputs, status monitoring

Digital Outputs (DO):

  • Voltage Levels: Typically 24VDC relay outputs
  • Current Rating: Typically 2A per output
  • Count: Varies by model (8-64 typical)
  • Applications: Relay control, actuator control, alarm outputs

Analog Inputs (AI):

  • Input Types: Voltage (0-10VDC) or current (4-20mA)
  • Resolution: Typically 12-bit or 16-bit resolution
  • Count: Varies by model (4-32 typical)
  • Applications: Sensor readings, temperature, pressure, etc.

Analog Outputs (AO):

  • Output Types: Voltage (0-10VDC) or current (4-20mA)
  • Resolution: Typically 12-bit or 16-bit resolution
  • Count: Varies by model (2-16 typical)
  • Applications: Setpoint control, valve positioning, etc.

Expansion Capabilities

Expansion Card Slots

IONA Expansion:

  • Expansion Slots: IONA controllers support expansion card slots
  • Slot Count: Typically 1-4 expansion slots (varies by model)
  • Card Types: Various expansion card types available
  • Hot-Swappable: Some models support hot-swappable cards

Expansion Card Types

Digital I/O Expansion Cards:

  • Digital Input Cards: Additional digital inputs
  • Digital Output Cards: Additional digital outputs
  • Mixed Digital Cards: Combination of inputs and outputs
  • Point Capacity: Typically 8-32 points per card

Analog I/O Expansion Cards:

  • Analog Input Cards: Additional analog inputs
  • Analog Output Cards: Additional analog outputs
  • Mixed Analog Cards: Combination of inputs and outputs
  • Point Capacity: Typically 4-16 points per card

Specialised Expansion Cards:

  • Temperature Input Cards: RTD, thermocouple inputs
  • Communication Cards: Additional communication ports
  • Specialised I/O: Specialised I/O types

Maximum Expansion Capacity

Total System Capacity:

  • Built-in I/O: Base I/O from controller
  • Expansion I/O: I/O from expansion cards
  • Total Capacity: Combined built-in and expansion I/O
  • Limitations: Limited by expansion slots and system resources

Typical Maximums:

  • IONA-105: 50-100 total points (with expansion)
  • IONA-205: 100-200 total points (with expansion)
  • IONA-305: 200-400 total points (with expansion)

Note: Maximum capacity varies by model, expansion cards used, and system configuration.

Expansion Card Configuration

Step 1: Identify Expansion Requirements

Assess I/O Needs:

  1. Current I/O: Count current built-in I/O usage
  2. Additional I/O: Determine additional I/O needed
  3. I/O Types: Identify types of additional I/O
  4. Future Growth: Plan for future I/O needs

Step 2: Select Expansion Cards

Card Selection:

  1. Card Type: Select appropriate card type
  2. Point Count: Select card with required point count
  3. I/O Types: Match I/O types to requirements
  4. Compatibility: Verify card compatibility with IONA model

Step 3: Install Expansion Cards

Physical Installation:

  1. Power Off: Power off IONA controller
  2. Card Installation: Install expansion card in slot
  3. Secure Connection: Ensure card is securely connected
  4. Power On: Power on controller

Step 4: Configure Expansion Cards

Configuration:

  1. Access Configuration: Access IONA configuration
  2. Card Detection: Verify card is detected
  3. I/O Configuration: Configure expansion card I/O
  4. Point Mapping: Map expansion points to applications
  5. Testing: Test expansion card functionality

I/O Planning and Design

I/O Requirements Assessment

Assessment Steps:

  1. Point Count: Count total points needed
  2. I/O Types: Identify I/O types required
  3. Current Usage: Assess current I/O usage
  4. Future Growth: Plan for future expansion
  5. Model Selection: Select appropriate IONA model

Expansion Planning

Expansion Strategy:

  1. Start with Base: Start with built-in I/O
  2. Plan Expansion: Plan expansion card usage
  3. Slot Management: Manage expansion slots efficiently
  4. Cost Consideration: Consider expansion costs
  5. Future Flexibility: Maintain flexibility for future needs

Best Practices

I/O Management:

  • Right-Size: Select model appropriate for application
  • Plan Ahead: Plan for expansion from start
  • Documentation: Document I/O assignments
  • Testing: Test all I/O points
  • Maintenance: Plan for I/O maintenance

Configuration Examples

Example 1: Small Application

IONA-105 Configuration:

  • Built-in I/O: 22 points (example)
  • Expansion: 1 expansion card (16 digital I/O)
  • Total I/O: 38 points
  • Application: Small HVAC control

Example 2: Medium Application

IONA-205 Configuration:

  • Built-in I/O: 44 points (example)
  • Expansion: 2 expansion cards
    • Card 1: 16 digital I/O
    • Card 2: 8 analog I/O
  • Total I/O: 68 points
  • Application: Medium building automation

Example 3: Large Application

IONA-305 Configuration:

  • Built-in I/O: 88 points (example)
  • Expansion: 4 expansion cards
    • Card 1: 32 digital I/O
    • Card 2: 16 analog I/O
    • Card 3: 16 digital I/O
    • Card 4: 8 analog I/O
  • Total I/O: 160 points
  • Application: Large building automation system

Troubleshooting

Expansion Card Not Detected

If expansion card is not detected:

  1. Physical Connection: Verify card is properly installed
  2. Power: Verify controller is powered
  3. Slot: Verify card is in correct slot
  4. Compatibility: Verify card compatibility
  5. Configuration: Check card configuration

I/O Points Not Working

If I/O points are not working:

  1. Wiring: Verify wiring connections
  2. Configuration: Verify point configuration
  3. Addressing: Verify point addressing
  4. Power: Verify I/O power supply
  5. Testing: Test individual points

Capacity Issues

If approaching capacity limits:

  1. Current Usage: Review current I/O usage
  2. Optimisation: Optimise I/O usage
  3. Expansion: Add expansion cards if slots available
  4. Model Upgrade: Consider model upgrade
  5. Alternative Solutions: Consider alternative I/O solutions

Additional Resources

  • IONA Product Specifications
  • Expansion Card Documentation
  • I/O Configuration Guide
  • IONA Installation Manual
What expansion cards does the IONA supportJACE