Applied Motion RS-232 - Manual (Page 295)

295 920-0002 Rev. I
2/2013
Host Command Reference
Example 6: read Q register D
opcode 0x9F read 32 bit Q register, from Table 2
operand 0x44 from Reg Code Table, indicates register ‘D’
return value 0x12345678
Type 2 Command Message Payload Type 2 Response Message Payload
byte 0 0 reserved byte 0 0 reserved
byte 1 2 message type byte 1 2 message type
byte 2 9F opcode byte 2 9F opcode
byte 3 44 operand byte 3 44 operand
byte 4 0 not used byte 4 12 read data MSB
byte 5 0 not used byte 5 34 read data 2nd MSB
byte 6 0 not used byte 6 56 read data 2nd LSB
byte 7 0 not used byte 7 78 read data LSB
Example 7: write Q register D
opcode 0x9E read 32 bit Q register, from Table 2
operand 0x44 from Reg Code Table, indicates register ‘D’
data 0x12345678
Type 2 Command Message Payload Type 2 Response Message Payload
byte 0 0 reserved byte 0 0 reserved
byte 1 2 message type byte 1 2 message type
byte 2 9E opcode byte 2 9E opcode
byte 3 44 operand byte 3 44 operand
byte 4 12 data MSB byte 4 ? status code MSB
byte 5 34 data 2nd MSB byte 5 ? status code LSB
byte 6 56 data 2nd LSB byte 6 0 not used
byte 7 78 data LSB byte 7 0 not used
Example 8: Disable IEEE-1588 protocol (for Class 1 connections)
opcode 0xFE IEEE-1588 control, from Table 2
operand 0x1 Disable IEEE-1588 protocol. (0x0 will enable IEEE-1588)
data 0x0
Type 2 Command Message Payload Type 2 Response Message Payload
byte 0 0 reserved byte 0 0 reserved
byte 1 2 message type byte 1 2 message type
byte 2 FE opcode byte 2 FE opcode
byte 3 1 operand byte 3 0 operand
byte 4 0 not used byte 4 ? status code MSB
byte 5 0 not used byte 5 ? status code LSB
byte 6 0 not used byte 6 0 not used
byte 7 0 not used byte 7 0 not used