# Inputs

- [MQTT](/v0.2.3/references/components-1/inputs/mqtt.md): MQTT subscribe component is used to read data from MQTT broker.
- [Modbus TCP](/v0.2.3/references/components-1/inputs/modbus-tcp.md): Modbus TCP Read component is used to read data from Modbus TCP supported sources.
- [Siemens S7](/v0.2.3/references/components-1/inputs/siemens-s7.md): Siemens S7 Read component is used to read data from Siemens devices.
- [OPC UA](/v0.2.3/references/components-1/inputs/opc-ua.md): OPC UA Read component is used to read data from OPC UA Server.
- [TwinCAT](/v0.2.3/references/components-1/inputs/twincat.md): TwinCAT Read component is used to read data from TwinCAT 2 and TwinCAT 3 Servers/PLCs.
- [EtherNet/IP](/v0.2.3/references/components-1/inputs/ethernet-ip.md): EtherNet/IP Read component is used to read data from EtherNet/IP supported sources.
