Modbus, Modbus TCP
AddMe III features 10/100BaseT Ethernet and EIA-485 communications with Modbus RTU and Modbus TCP, embedded web server, SNMP agent, and astronomical clock. AddMe III features 18 universal context sensitive inputs. When configured as an analog input, the continuously self-calibrating sigma-delta converter produces 15-bit resolution with high noise immunity. When configured as a discrete input, the converter switches to 8-bit resolution at 128 samples per second for fast response. AddMe III also includes 4 analog outputs, 2 pulse inputs, and 8 Form A relay outputs
See attached spec. sheet.