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Tag Groups

This page is under construction. Screenshots and detailed content will be added soon.

Overview

This section covers Tag Groups functionality in the Intellija Gateway.

Placeholder Screenshot Screenshot placeholder: Tag Groups interface

Key Features

  • Feature 1
  • Feature 2
  • Feature 3

Getting Started

  1. Step 1
  2. Step 2
  3. Step 3

Configuration

Configuration Example Screenshot placeholder: Configuration screen

Details about configuration options...

Best Practices

  • Best practice 1
  • Best practice 2
  • Best practice 3

Troubleshooting

Common issues and solutions...

Next Steps

  • Related page 1
  • Related page 2

Tag Groups

Tag Groups organize tags that poll together at the same rate. Efficient grouping optimizes performance and network usage.

Tag Groups List Screenshot placeholder: List of tag groups

What is a Tag Group?

A Tag Group is a collection of tags that share the same polling rate. All tags in a group are read together in the same poll cycle.

Benefits: - Organize related tags logically - Set different poll rates for different data types - Enable/disable groups independently - Optimize Modbus read efficiency

Examples: - "Fast Process Data" - 1 second poll rate - "Slow Temperatures" - 30 second poll rate - "Hourly Counters" - 3600 second poll rate

System Tag Groups

Every device has two automatic system groups:

RBE Group

  • Created automatically
  • Cannot be deleted
  • Poll rate: 1 second (default)
  • Contains tags with is_rbe=true
  • Only publishes values when they change

Burst Group

  • Created automatically
  • Cannot be deleted
  • Triggered by remote DCMD command
  • High-frequency temporary polling
  • Contains tags with is_burst=true

See Burst Polling and RBE for details.

Creating a Tag Group

Add Tag Group Form Screenshot placeholder: Add tag group form

  1. Navigate to device → Tag Groups → Add Group
  2. Fill in configuration:

Basic Settings

  • Group Name: Descriptive name (e.g., "Process Data")
  • Poll Rate: Seconds between polls (minimum: 1)

  • Enabled: Enable/disable this group

  • Click Save

Poll Rates

Choose appropriate poll rates based on data characteristics:

Data Type Recommended Poll Rate Example
Critical alarms 1 second Safety interlocks
Fast process data 1-5 seconds Flow rates, pressures
Normal data 5-30 seconds Temperatures, levels
Slow changing 60-300 seconds Totals, averages
Rare updates 300+ seconds Configurations

Tag Assignment

Moving Tags Between Groups

Move Tags Screenshot placeholder: Moving tags to different group

  1. Select tag(s)
  2. Click Move to Group
  3. Select destination group
  4. Click Confirm

Bulk Assignment

  1. Click Bulk Edit
  2. Select multiple tags
  3. Choose Assign to Group
  4. Select group
  5. Click Apply

Read Optimization

The gateway automatically optimizes reads within each group:

Batch Reading

Read Optimization Screenshot placeholder: Diagram showing batched reads

Consecutive registers are batched: - Tags at addresses 100, 101, 102 → Single read of 3 registers - Reduces Modbus queries - Improves performance

Gap handling: - Small gaps (≤10 registers) → Include in batch - Large gaps → Separate reads

Limits: - Maximum 125 registers per read (Modbus spec) - Maximum 250 bytes per read

Frame Delay

Configure delay between reads to prevent overwhelming devices: - Set at device level - Default: 10ms - Adjust based on device capability

Group Statistics

Group Statistics Dashboard Navigator root dashboard view

Monitor each group: - Last poll time - Poll duration - Success rate - Number of tags - Number of Modbus queries - Average response time

Enabling/Disabling Groups

Temporarily Disable

Stop polling a group without deleting: 1. Toggle Enabled switch 2. Tags remain configured 3. No data published 4. Re-enable anytime

Use Cases

  • Maintenance periods
  • Testing
  • Troubleshooting
  • Seasonal equipment

Best Practices

  • ✅ Group tags by update frequency
  • ✅ Use slower rates for slowly-changing data
  • ✅ Keep groups under 100 tags for manageability
  • ✅ Use RBE for values that rarely change
  • ✅ Test poll rates under load
  • ✅ Monitor group statistics
  • ✅ Adjust rates based on network capacity

Common Grouping Strategies

By Data Type

  • Analog inputs
  • Digital outputs
  • Alarms
  • Diagnostics

By Update Frequency

  • Real-time (1s)
  • Normal (5-10s)
  • Slow (30-60s)
  • Static (300s+)

By Criticality

  • Critical safety data (fast)
  • Operational data (medium)
  • Historical data (slow)

Troubleshooting

Group Not Polling

Check: - Group is enabled - Device is enabled - At least one tag in group - Tags are enabled - No configuration errors

Slow Poll Times

Possible causes: - Too many tags in group - Slow device response - Network latency - Insufficient frame delay

Solutions: - Split into multiple groups - Increase frame delay - Check network - Reduce tags per group

Next Steps