... counters and clocks. In particular, x-Messenger shall possess industrial design, practical set of I/O resources& easy to ... on/ off-delays, pulse relay ,counters ,Watchdog function ,PI controller etc..Ø Logic functions-AND, OR, NOT, XOR……Ø Standard configure ... capabilityØ 4-lines, 16-character per line, backlight display& keypad optionalØ Standard Modbus RTU/ASCII/TCP communication protocol supported Ø ...