def value_to_message(value, num_bytes):
    """
    Converts a integer configuration value to a message compatible byte 
    (character) format to be appended to set configuration request.
    Inputs:
        value - Integer value.
        num_bytes - The number of bytes to package the integer into.
    Outputs:
        message - A byte/character formatted sequence representing the 
                  input value.
    """
    num_nibbles = 2 * num_bytes
    hex_rep = hex(int(value))[2:]
    hex_rep = ('0' * (num_nibbles - len(hex_rep)) + hex_rep)
    message = ''
    for ii in range(0, num_nibbles, 2):
        message += chr(int(hex_rep[ii:(ii + 2)], 16))
    return message