Advantech
ADAM-6251-B
16 DI IoT Modbus/SNMP/MQTT 2Ports Ethernet Remote I/O, 16-Channel Digital Input (Counter), Protocols: MQTT(TLS), SNMP, Modbus TCP, RESTful, ASCII, GCL to Perform Basic Logic Control Rules
Alt: ADAM 6000 Series
4-Channel Relay Output Modbus TCP Module with Daisy Chain
Features Include: