Zigen AX-88 User Manual

Contents

Zigen AX-88 User Manual Manual pdf 53 page image

Matrix Switching System—User Manual52Protocol ByteHost (PC) command: 1st byte and 2nd byte are fixed.Byte 1: Device Byte (DB)Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0DB BT 0 1 Device ID (0 - 31)BT: Broadcast Command Flag.0 - Instruction for Device ID only1 - Instruction for all devices. (Device ID must be written 0) Devices will not respond, when receiving the broadcast command.0: Reserve, Always 0.1: Identifier, Always 1.Device ID: Device id ranges from 0 to 31. (Please refer to device’s user manual)Byte 2: Request Byte (RB)Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0RB VAR 0 Request Type (0 - 63)VAR: Variable Length Command Flag.0 - Standard Command (Recommended)1 - Variable Length Command. (Only support the command Ack Type A)Request Type: Please refer to "Table - Host Request List".A. Standard CommandByte 3: Index Byte (IB)Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0IB IndexIndex: Please refer to "Table - Host Request List" and "Table - Command Index List".Byte 4: Value Byte (VB)Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0VB ValueValue: Please refer to "Table - Host Request List" and "Table - Command Value List".