DC 24V 2 Channel RS485 Relay Board UART Serial port Switch Modbus AT Control
ab 14,14 €
Under the MODBUS command ,the maximum delay is 255 seconds. 7: Under the MODBUS command mode, it can support up to 32 devices in parallel. Modbus Poll. the new version adds the Read Status command (command 03).
Jetzt bei Ebay:
