Table Of Contents

IEEE 488 Command Messages

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    Last Modified: May 17, 2017

    The IEEE 488 Command Messages table lists IEEE 488 command messages that are command bytes, which you can use to configure the GPIB state.

    For more information about the messages table, refer to the ANSI/IEEE Standard 488.1-1987, IEEE Standard Digital Interface for Programmable Instrumentation, and ANSI/IEEE Standard 488.1-2003, IEEE Standard for Higher Performance Protocol for the Standard Digital Interface for Programmable Instrumentation.

    Refer to the Multiline Interface Message Definitions table below the IEEE 488 Command Messages table for the message definitions.

    Table 1. IEEE 488 Command Messages
    Hex Decimal ASCII Message
    00 0 NUL
    01 1 SOH GTL
    02 2 STX
    03 3 ETX
    04 4 EOT SDC
    05 5 ENQ PPC
    06 6 ACK
    07 7 BEL
    08 8 BS GET
    09 9 HT TCT
    0A 10 LF
    0B 11 VT
    0C 12 FF
    0D 13 CR
    0E 14 SO
    0F 15 SI
    10 16 DLE
    11 17 DC1 LLO
    12 18 DC2
    13 19 DC3
    14 20 DC4 DCL
    15 21 NAK PPU
    16 22 SYN
    17 23 ETB
    18 24 CAN SPE
    19 25 EM SPD
    1A 26 SUB
    1B 27 ESC
    1C 28 FS
    1D 29 GS
    1E 30 RS
    1F 31 US CFE
    20 32 SP MLA0
    21 33 ! MLA1
    22 34 " MLA2
    23 35 # MLA3
    24 36 $ MLA4
    25 37 % MLA5
    26 38 & MLA6
    27 39 ' MLA7
    28 40 ( MLA8
    29 41 ) MLA9
    2A 42 * MLA10
    2B 43 + MLA11
    2C 44 , MLA12
    2D 45 - MLA13
    2E 46 . MLA14
    2F 47 / MLA15
    30 48 0 MLA16
    31 49 1 MLA17
    32 50 2 MLA18
    33 51 3 MLA19
    34 52 4 MLA20
    35 53 5 MLA21
    36 54 6 MLA22
    37 55 7 MLA23
    38 56 8 MLA24
    39 57 9 MLA25
    3A 58 : MLA26
    3B 59 ; MLA27
    3C 60 < MLA28
    3D 61 = MLA29
    3E 62 > MLA30
    3F 63 ? UNL
    40 64 @ MTA0
    41 65 A MTA1
    42 66 B MTA2
    43 67 C MTA3
    44 68 D MTA4
    45 69 E MTA5
    46 70 F MTA6
    47 71 G MTA7
    48 72 H MTA8
    49 73 I MTA9
    4A 74 J MTA10
    4B 75 K MTA11
    4C 76 L MTA12
    4D 77 M MTA13
    4E 78 N MTA14
    4F 79 O MTA15
    50 80 P MTA16
    51 81 Q MTA17
    52 82 R MTA18
    53 83 S MTA19
    54 84 T MTA20
    55 85 U MTA21
    56 86 V MTA22
    57 87 W MTA23
    58 88 X MTA24
    59 89 Y MTA25
    5A 90 Z MTA26
    5B 91 [ MTA27
    5C 92 \ MTA28
    5D 93 ] MTA29
    5E 94 ^ MTA30
    5F 95 UNT
    60 96 ` MSA0, PPE
    61 97 a MSA1, PPE, CFG1
    62 98 b MSA2, PPE, CFG2
    63 99 c MSA3, PPE, CFG3
    64 100 d MSA4, PPE, CFG4
    65 101 e MSA5, PPE, CFG5
    66 102 f MSA6, PPE, CFG6
    67 103 g MSA7, PPE, CFG7
    68 104 h MSA8, PPE, CFG8
    69 105 i MSA9, PPE, CFG9
    6A 106 j MSA10, PPE, CFG10
    6B 107 k MSA11, PPE, CFG11
    6C 108 l MSA12, PPE, CFG12
    6D 109 m MSA13, PPE, CFG13
    6E 110 n MSA14, PPE, CFG14
    6F 111 o MSA15, PPE, CFG15
    70 112 p MSA16, PPD
    71 113 q MSA17, PPD
    72 114 r MSA18, PPD
    73 115 s MSA19, PPD
    74 116 t MSA20, PPD
    75 117 u MSA21, PPD
    76 118 v MSA22, PPD
    77 119 w MSA23, PPD
    78 120 x MSA24, PPD
    79 121 y MSA25, PPD
    7A 122 z MSA26, PPD
    7B 123 { MSA27, PPD
    7C 124 | MSA28, PPD
    7D 125 } MSA29, PPD
    7E 126 ~ MSA30, PPD
    7F 127 DEL
    Table 2. Multiline Interface Message Definitions
    Message Definition
    CFE Configuration Enable (This multiline interface message is part of the IEEE 488.1-2003 specification and supports the HS488 high-speed protocol.)
    CFG Configure (This multiline interface message is part of the IEEE 488.1-2003 specification and supports the HS488 high-speed protocol.)
    DCL Device Clear
    GET Group Execute Trigger
    GTL Go To Local
    LLO Local Lockout
    MLA My Listen Address
    MSA My Secondary Address
    MTA My Talk Address
    PPC Parallel Poll Configure
    PPD Parallel Poll Disable
    PPE Parallel Poll Enable
    PPU Parallel Poll Unconfigure
    SDC Selected Device Clear
    SPD Serial Poll Disable
    SPE Serial Poll Enable
    TCT Take Control
    UNL Unlisten
    UNT Untalk

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