PT100 Sensor Connection and Addressing

You are correct; PT100 sensors are generally connected in a 4-wire configuration for optimal accuracy with analog modules.

Regarding your 8 addresses: With a single analog module and 8 addresses, you can connect up to 8 PT100 sensors, assuming the module supports multiple channels. Each address typically corresponds to one sensor's input.

Addressing: You would assign each PT100 sensor to a unique address within the available 8. For example:

• Sensor 1: Address 0
• Sensor 2: Address 1
• ...
• Sensor 8: Address 7

Important Considerations:

• Module Documentation: Always refer to your specific analog module's documentation on SiePortal for exact wiring diagrams and channel limitations. SiePortal Link
• Channel Configuration: You might need to configure each channel within the module's parameters (e.g., specifying PT100 as the sensor type, setting the range).
• Wiring: Ensure correct 4-wire wiring to each sensor and the module.

If you provide the exact module type, I can provide more specific guidance.