TM 5-3895-374-24-2955-2575.11 DATAPROTOCOLDEFINITIONS*-Standard ASCII character used by the host computer to initiate a command.:-Standard ASCII character used as a field separator./-Standard ASCII character used as a separator between the PARAMETERmnemonic and the data in a WRITE command.$-Standard ASCII character used by the controller as the first characterin a response.UNIT #-ASCII 0 to 63. The’ unit address Identification is by means of binaryweighted internal switches on the controller communications board. Theunit address can be omitted in transmissions when only one unit isinvolved and address switches are set to all zeros. (See Section 5.8.)R-READ commandW-WRITE commandPARAMETER-Controller variable shown as a three-character ASCII mnemonic. ONLYUPPER CASE CHARACTERS MAY BE USED.CKSUM-TWOASCII hexadecimal characters representing an eight-bit checksumformed by adding each byte of the string preceding the checksum into aneight-bit accumulator and ignoring any overflow. The resulting eight-bitsum is sent as two hexadecimal characters. The high order four bits arethe first characters and the low order four bits are the last character.CKSUM is optional with the user.CR-Carriage ReturnLF-Line FeedSTATUS-Two ASCII coded hexadecimal characters defining the system status.DATA-A string of ASCII digits, including minus sign where appropriate,representing the numerical value of the PARAMETER specified. Limited tofour character spaces.ECLIPSE INSTRUMENTATION DIVISIONpage 3-1111
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