28Part IVPX-110/PX-310/PX-700 System Exclusive Message15 Format15.1 Message ClassificationsInstrument SysEx operations are classified as Parameter type for send and receive of an individual parameter, andparameter set type for bulk send and receive of a set of parameters. These SysEx types can be further brokendown into parameter categories according to the item being transferred.The operation classification of a message is determined in accordance with the value of the "Action" field of thePX-110/PX-310/PX-700 SysEx message. The basic format for all operation type messages is described in "15.2Message Structure", below.15.2 Message StructureThe PX-110/PX-310/PX-700 System Exclusive Message Format is formed of the 14 fields shown below. Whetheror not a particular field is included in a message and the length of each field depends on the message. Byte isthe minimum unit for each field length. If two values are included within the same byte, they are separated by aslash (/).The "act" field describes the action that the message performs. The meanings of the "index" and "data" fieldsdiffer according to the content of the act field. The following describes each of the fields in detail.15.2.1 1...SYSEX : System Exclusive message StatusSystem Exclusive message Status = F0HPX-110/PX-310/PX-700 System Exclusive MessageIndividual Parameter Transfer Command Status and CommandsPatch Common MIDITune/MixSys ChorusSys ReverbMaster EQ (Brilliance)DSPPart BasicTune/MixToneVibratoSMF Data Information (PX-310)Parameter Set Bulk Dump SMF Data (PX-310)1 2 3 4 5 6 7 8 9 10 11 12 13SYSEX MAN MOD dev act cat prm ilen/dlen ps index data sum EOXFormat: 11110000B