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Add some example Hex addresses #36754

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merged 3 commits into from
Jan 6, 2025
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@NigelPearson NigelPearson commented Jan 6, 2025

None of the HA documentation seems to mention Hex addresses.

As mentioned in:
https://community.home-assistant.io/t/allow-modbus-address-port-register-to-be-specified-in-hex/800954

I didn't think/know that YAML would let me use Hex literals for device interfacing (and I must have got the format wrong when I tried it and it failed).

A few random Hex constants will at least let developers search for the possibility

Proposed change

No Hex address examples in doco, so use some Hex address literals in a few ModBUS YAML examples

Type of change

  • Spelling, grammar or other readability improvements (current branch).
  • Adjusted missing or incorrect information in the current documentation (current branch).
  • Added documentation for a new integration I'm adding to Home Assistant (next branch).
  • Added documentation for a new feature I'm adding to Home Assistant (next branch).
  • Removed stale or deprecated documentation.

Additional information

  • None

Checklist

  • This PR uses the correct branch, based on one of the following:
    • I made a change to the existing documentation and used the current branch.
  • The documentation follows the Home Assistant documentation standards.

Summary by CodeRabbit

  • Documentation
    • Updated Modbus integration configuration examples
    • Changed address representations for climate and sensor entities from decimal to hexadecimal format

None of the HA documentation seems to mention Hex addresses.

As mentioned in:
https://community.home-assistant.io/t/allow-modbus-address-port-register-to-be-specified-in-hex/800954

I didn't think/know that YAML would let me use Hex literals for device interfacing (and I must have got the format wrong when I tried it and it failed).

A few random Hex constants will at least let developers search for the possibility
@home-assistant home-assistant bot added the current This PR goes into the current branch label Jan 6, 2025
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coderabbitai bot commented Jan 6, 2025

📝 Walkthrough

Walkthrough

The pull request modifies the Modbus integration documentation in the source markdown file, updating configuration examples to represent entity addresses in hexadecimal format. The changes involve converting decimal address representations to their equivalent hexadecimal notation for both climate and sensor entity configurations, providing an alternative way of specifying Modbus device addresses.

Changes

File Change Summary
source/_integrations/modbus.markdown Updated configuration examples to use hexadecimal address notation:
- Climate entity address changed from 27586 to 0x6BC2
- Sensor entity address changed from 0 to 0x9A

Sequence Diagram

sequenceDiagram
    participant Config as Modbus Configuration
    participant Integration as Modbus Integration
    
    Config->>Integration: Provide Hexadecimal Address
    Integration->>Integration: Convert Hex Address to Decimal
    Integration->>Device: Communicate using Converted Address
Loading

The sequence diagram illustrates how the Modbus integration processes the hexadecimal address configuration, converting it to the appropriate decimal representation for device communication.


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Actionable comments posted: 0

🧹 Nitpick comments (1)
source/_integrations/modbus.markdown (1)

1442-1442: LGTM! Hex address conversion is correct.

The conversion from decimal 0 to hexadecimal 0x9A adds a new example that demonstrates hex address usage in sensor configurations.

For additional clarity, consider adding a brief comment in the configuration example to highlight that both decimal and hexadecimal address formats are supported.

       - name: Room_1
         slave: 10
-        address: 0x9A
+        address: 0x9A  # Hexadecimal addresses are supported (0x9A = 154 in decimal)
         input_type: holding
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📒 Files selected for processing (1)
  • source/_integrations/modbus.markdown (2 hunks)
⏰ Context from checks skipped due to timeout of 90000ms (3)
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🔇 Additional comments (1)
source/_integrations/modbus.markdown (1)

822-822: LGTM! Hex address conversion is correct.

The conversion from decimal 27586 to hexadecimal 0x6BC2 is mathematically correct and improves the documentation by showing how hex addresses can be used in YAML configurations.

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Thanks, @NigelPearson 👍

../Frenck

@frenck frenck merged commit 7371b10 into home-assistant:current Jan 6, 2025
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