User manual

Tamarisk
®
320
Software ICD
33
3 0x02 Parameters length.
4, 5 0x0081 Field Calibrate Shutter Disable Set Command ID.
6 checksum Frame check sequence.
3.2.3 Automatic Calibration Toggle – 0xAC
Description: Toggles the TIM between automatic or manual field calibration modes.
In automatic mode, a field calibration operation will occur at regular intervals.
In manual mode, a field calibration operation will only occur when commanded, other than
range changes. A range change can occur as the camera temperature changes from one
region to another. There are five temperature ranges; each range crossing has hysteresis so
actual changes will depend on current range and next range. These field calibrations are
required to maintain usable video.
The default is to have automatic calibration turned on.
Command Format:
Table 53 – Automatic Calibration Toggle Command Format
Byte Value Description
1 0x01 Start of message.
2 0xAC Automatic calibration toggle command ID.
3 0x00 Parameters length.
4 checksum Frame check sequence.
Table 54 – Automatic Calibration Toggle Command Format (Option 2)
Byte Value Description
1 0x01 Start of message.
2 0xAC Automatic calibration toggle command ID.
3 0x02 Parameters length.
4, 5 0x0000 or 0x0001
0 disables Autocal.
1 enables Autocal.
6 checksum Frame check sequence.
Response Format:
Table 55 – Automatic Calibration Toggle Response Format
Byte Value Description
1 0x01 Start of message.
2 0x02 ACK response
3 0x02 Parameters length.