Frequency Converter Altivar 212

The frequency converter for HVAC applications is controlled via Modbus RTU. Note the following rules:

1. Each device must use the same baud rate.
2. The parity is set to 0 by default.
3. Each slave address may only be used once per bus.
4. No slave address may be skipped.
5. Up to 10 inverters are supported per terminal.
6. Up to 20 terminals are supported.

The control can be performed either via frequency 653.x.y.frequency or speed 653.x.y.set_speed.

Warning: Risk to human life! Observe the applicable regulations.

Note: The baud rate is only changed after a PLC reset.