| Command |
Description |
CMD (Hex) |
Send Data |
Response Data |
Send Sample (Hex) |
Respond Sample (Hex) |
| MTR_GET_POS |
Get position |
0x01 |
|
3 bytes (encoder position) |
3B 03 20 12 01 CA |
3B 06 12 20 01 00 00 00 C7
Encoder Position = 0
|
| MTR_GOTO_POS2 |
GOTO position |
0x17 |
3 bytes (encoder position) |
1 byte (1=OK) |
Goto Position = 0x140000 = 1310720 |
|
| MTR_OFFSET_CNT |
Set current focuser encoder position. Often used to set focuser encoder to Zero. |
0x04 |
3 bytes (encoder position) |
1 byte (1=OK) |
3B 06 20 12 04 14 00 00 B0
Set Encoder Position = 0x140000 = 1310720
|
3B 04 12 20 04 01 C5 |
| MTR_GOTO_OVER |
Determine if the motor is moving during a GOTO? |
0x13 |
|
1 byte (255=YES, 0=NO) |
3B 03 20 12 13 B8 |
3B 04 12 20 13 FF B8
Goto is Over
|
| MTR_SLEWLIMITMAX |
Set the Maximum Slew Limit. |
0x1B |
3 bytes |
1 byte (1=OK) |
3B 06 20 12 1B 3B 82 60 90
Set Min Slew Limit = 0x3B8260 = 3900000
|
3B 04 12 20 1B 01 AE |
| MTR_SLEWLIMITGETMAX |
Returns the Maximum Slew Limit in encoder ticks |
0x1D |
|
3 bytes (encoder position) |
3B 03 20 12 1D AE |
3B 06 12 20 1D 3A 4F A5 7D
Maximum Slew Limit = 0x3A4FA5 = 3821477
|
| MTR_PMSLEW_RATE |
Move the motor positive. Motor will stop when the Max Slew Limit is reached. |
0x24 |
One byte for the speed (stop to fastest) = (0x00 to 0x09) |
1 byte (1=OK) |
3B 04 20 12 24 09 9D
Go Positive Top Speed
|
3B 04 12 20 24 01 A5 |
| MTR_NMSLEW_RATE |
Move the motor negative. Motor will stop when the Min Slew Limit is reached. |
0x25 |
One byte for the speed (stop to fastest) = (0x00 to 0x09) |
1 byte (1=OK) |
3B 04 20 12 25 09 9C
Go Negative Top Speed
|
3B 04 12 20 25 01 A4 |
| TEMP_GET |
Get the temperature of one sensor |
0x26 |
One byte address(Primary=0, Ambient=1, Secondary=2) |
3 bytes (byte1=address, [byte2 & byte3] = Temperature…See Formula Below) |
3B 04 20 12 26 01 A3
Request Temp for ambient
|
3B 05 12 20 26 5C 01 46
Temp=5C01 (see below for conversion to Celcius)
|
| FANS_SET |
Set the fans, on or off. |
0x27 |
1 byte (1=ON, 0=OFF) |
1 byte (1=OK) |
3B 04 20 13 27 01 A1
Set FANS=ON
|
3B 04 13 20 27 01 A1 |
| FANS_GET |
Get the fans state, on or off. |
0x28 |
|
1 byte (0=ON, 3=OFF) |
3B 03 20 13 28 A2 |
3B 04 13 20 28 00 A1
FANS=ON
|
| MTR_GET_CALIBRATION_STATE |
Determine if the focuser as been calibrated. Useful for Handcontrol and PWI Focus software. |
0x30 |
1 byte (0x40) |
1 byte (0=NO, 1=YES) |
3B 04 20 12 30 40 5A |
3B 04 12 20 30 01 99
Motor = calibrated.
|
| MTR_SET_CALIBRATION_STATE |
Set the calibration state for the focuser. Useful for Handcontrol and PWI Focus software. |
0x31 |
2 bytes (Calibrated = 40 01) and (Not = 40 0) |
1 byte (1=OK) |
3B 05 20 12 31 40 01 57
Set calibration = true
|
3B 04 12 20 31 01 98 |
| MTR_GET_STOP_DETECT |
Determine if Motor will stop when the focuser hits a physical hardstop. |
0xEE |
|
1 byte (1=YES, 0=NO) |
3B 03 20 12 EE DD |
3B 04 12 20 EE 01 DB
Stop Detect = enabled
|
| MTR_STOP_DETECT |
Set the controller to stop when focuser hits a physical hardstop. |
0xEF |
1 byte (1=YES, 0=NO) |
|
3B 04 20 12 EF 01 DA
Set Stop Detect = enabled
|
3B 03 12 20 EF DC |
| MTR_GET_APPROACH_DIRECTION |
Get the approach of motor during a goto |
0xFC |
|
1 byte (0=negative, 1=positive=default) |
3B 03 20 12 FC CF |
3B 04 12 20 FC 00 CE
Motor is set to approach from positive, this is default.
|
| MTR_APPROACH_DIRECTION |
Get the approach of motor during a goto |
0xFD |
1 byte (0=negative, 1=positive=default) |
1 byte (1=OK) |
3B 04 20 12 FD 00 CD
Set APPROACH = positive, this is default.
|
3B 04 12 20 FD 01 CC |
| GET_VERSION |
Get Firmware Version |
0xFE |
|
2 bytes (byte1=Major, second byte2=minor) |
3B 03 20 12 FE CD |
3B 05 12 20 FE 01 05 C5
Version = 1.5
|
