Control Register Write (4X Reference) - GE ASTAT XT QT 0008U Series User Manual

byte 1: Serial Link No.
byte 2: Function
byte 3: Starting Address High ($00)
byte 4: Starting Address Low ($09)
byte 5: No. of Registers High
byte 6: No. of Registers Low
byte 7: Byte Count
byte 8: Data High
byte 9: Data Low
byte 10: Data High
byte 11: Data Low
byte 12: Data High
byte 13: Data Low
byte 14: Data High
byte 15: Data Low
byte 16: CRC_Low
byte 17: CRC_High
The ASTAT-XT Normal response:
byte 1: Serial Link No.
byte 2: Function
byte 3: Starting Address High ($00)
byte 4: Starting Address Low ($09)
byte 5: No. of Registers High
byte 6: No. of Registers Low
byte 7: CRC_Low
byte 8: CRC_High
Note:
A Normal response will be returned even if the preset data value is beyond the allowed range for one or more
parameter settings. Later the ASTAT-XT program will check the value of each parameter. If it exceeds the allowed
limit, the limit value will be stored instead the transmitted parameter value. It is the user's responsibility to read and
check all parameter settings after presetting.
A.9. Control Register Write (4X Reference)
The ASTAT-XT incorporates one Control register intended for controlling the ASTAT-XT.
Address: The Control register is register # 753 addressed as 752 (40752).
In order to control the ASTAT-XT uses the Control register:
* Use Function 16 only.
* Use Address_High (page) = 2
* Use Address_Low = 240 (0F0H).
* Write to one register only.
* Use data_high (ms-byte of data) = 5AH.
* Data_low Bits resolution of the control register (ls-byte of data):
bit function
d0 Stop
d1 Soft Stop
d2 Start
d3 Energy Save
d4 Dual Adjust
d5 Slow Speed
d6 Slow Spd Reverse
d7 Reset
• Appendix A - MODBUS RTU Protocol
94
($80)
($10)
($00)
($04)
($08)
($01) (300)
($2C)
($00) (10)
($10)
($01) (480)
($E0)
($00) (2)
($02)
($XX)
($XX)
($80)
($10)
($00)
($04)
($XX)
($XX)
Comment
Write "1" (ON) to stop.
Write "1" (ON) to Soft Stop
Write "1" (ON) to start
Write "1" (ON) to turn On. Write "0" (OFF) to turn Off.
Write "1" (ON) to turn On. Write "0" (OFF) to turn Off.
Write "1" for Slow Speed. Write "0" for Normal Start.
Write "1: for Reverse Direction. Write "0" for Forward Direction
Write "1" (ON) to Reset.