AW Gear Meters EMO-500 - Manual (Page 33)

EMO-500
Operation and Programming Manual
32
Communication through the serial port does not work if the EMO-500 is in programming mode.
Protocol Format
The EMO-500 uses a protocol format that follows OPTO 22 Company’s OPTOMUX.
^ means “add one letter or digit”; ^^ means add two letters or digits, ^^^ means add three letters or
digits, etc.; “cr” means “carriage return.”
The format for reading from the EMO-500 is as follows:
>01K0F3404XXcr
^................start of string must use the > sign
^^.............unit number (under global variables)
^.............read command K (use J to write)
^^^^......address to read from
^^......number of bytes to read
^^....checksum for the string 01K0F3404
......carriage return (ASCII 13) ends the string
The answer received back from the EMO-500 looks like this:
A03E36712XXcr
^...............all answers start with A
^^............low byte (at address 0F34)
^^..........next byte(at address 0F35)
^^........next byte(at address 0F36)
^^......high byte(at address 0F37)
^^....checksum
......carriage return ends the string
The protocol format for writing to the EMO-500 is as follows:
Notice
Notice