Wiki source code of 14. Modbus
Last modified by writer on 2025/07/15 19:25
Show last authors
| author | version | line-number | content |
|---|---|---|---|
| 1 | Modbus RTU communication is supported at the hardware level on the following devices: | ||
| 2 | |||
| 3 | * PX1; | ||
| 4 | * PLCM-E3 + PLCM-B1-G2. | ||
| 5 | |||
| 6 | When using other controllers that do not support the Modbus RTU protocol, communication is configured by connecting to a PC via a USB-RS485 converter, for example, via [[PLB485>>https://purelogic.ru/catalog/konverter_plb485/]]. | ||
| 7 | |||
| 8 | When working via Modbus RTU, PUMOTIX acts as a Master device, and all connected devices must be in Slave mode. | ||
| 9 | |||
| 10 | Supported functions: | ||
| 11 | |||
| 12 | * Read - 0x03 (Read Holding Registers); | ||
| 13 | * Read - 0x04 (Read Input Registers); | ||
| 14 | * Write - 0x06 (Write Single Register); | ||
| 15 | * Write - 0x10 (Write Multiply Registers). | ||
| 16 | |||
| 17 | Connection and configuration examples for some frequency converters: | ||
| 18 | |||
| 19 | {{documentTree root="document:xwiki:Руководство пользователя.Modbus.WebHome" compact="true" showAttachments="false" showTranslations="false"/}} |