OPTA PLUS. A range of simple and standalone PROGRAMMABLE LOGIC RELAYS ideal for simple applications in industrial automation, OEM and building automation IoT. Programmable with conventional programming languages (ladder logic) as well as with innovative open source programming languages (IDE / ARDUINO). The powerful dual-core Cortex M7+M4 chip enables a high number of calculations in real time. Thanks to a high-end integrated secure element chip, you can manage encryption and data keys in all types of applications. Supply voltage 12...24 V DC, 8 analog / digital (0-10 V / 12-24 V) inputs, 4 relay outputs (normally open, 10A), USB (Type C) high-speed connection for programming and power supply during configuration, data acquisition (via storage medium), RJ45 Ethernet (Modbus TCP / IP) connection and RS485 port for MODBUS RTU connection.