User manual

PoStep60 user manual
30
www.poscope.com
8.3.19 0x32 – Set overheat current
Master writes 0x32 command followed by two bytes of data. BYTE0 and BYTE1 are calculated using
same algorithm as in subsection 8.3.17 0x30 – Set full scale current.
8.3.20 0x33 – Set step mode
Master writes 0x33 command followed by one byte of data – BYTE0. BYTE0 relates to step mode as
follows:
Mode
BYTE0
Full step
0
Half step
1
1/4 step
2
1/8 step
3
1/16 step
4
1/32 step
5
1/64 step
6
1/128 step
7
1/256 step
8
Other values are ignored.
8.3.21 0x34 – Set temperature limit
Master writes 0x34 command followed by one byte of data – BYTE0. BYTE0 is calculated as follows:
BYTE0 = Temperature/ºC
8.3.22 0x35 – Reset faults
To reset all faults Master shall write 0x35 command (no data bytes are needed).
8.3.23 0x3F – Write settings to EEPROM
To store changes made with any of the “Set” commands a Master shall write 0x3F command (no data
bytes are needed).
Following commands are related to internal position controller – please see subsection 7.5 Auto
control.
8.3.24 0x40 – Read position
To read PoStep position first Master writes 0x40 command (no data bytes are needed). In a next step
Master reads four bytes of data. Calculated position is:
position/steps = BYTE3 * 16777216 + BYTE2 * 65536 + BYTE1 * 256 + BYTE0 =
= BYTE3 << 24 | BYTE2 << 16 | BYTE1 << 8 | BYTE0
8.3.25 0x41 – Read maximal speed
To read PoStep maximal speed first Master writes 0x41 command (no data bytes are needed). In a
next step Master reads two bytes of data. Calculated maximal speed is:
Maximal speed/steps/s = BYTE1 * 256 + BYTE0 = BYTE1 << 8 | BYTE0
8.3.26 0x42 – Read acceleration
To read PoStep acceleration first Master writes 0x42 command (no data bytes are needed). In a next
step Master reads two bytes of data. Calculated acceleration is:
acceleration/steps/s
2
= BYTE1 * 256 + BYTE0 = BYTE1 << 8 | BYTE0