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ice:commands:peaklock

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Peak Lock and Current Controller Command Set

List of commands for the ICE Quad Temperate Controller. Please see Common Laser Controller Command Set for commands relating to the laser controller.

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58

I2C Command Number: 32


Description

Returns the phase shift (in degrees) on the dither signal modulating the laser current.<html></div></html>

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I2C Command Number:


Description

Sets the phase shift to PHASE (in degrees) on the dither signal modulating the laser current. Returns the output of the command Phase? <html></div></html>

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Example:

  
32

I2C Command Number: 34


Description

Returns the amplitude of the dither on the laser current. Output is integer from 0-255. <html></div></html>

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I2C Command Number:


Description

Sets the amplitude of the current modulation to AMP. AMP is an integer ranging from 0 – 255. Command returns the output of the command DitherA? <html></div></html>

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Example:

  
On

I2C Command Number: 36


Description

Returns the status of the dither on the laser current (on or off). <html></div></html>

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I2C Command Number:


Description

Enables or disables the dither on the laser current. Valid arguments are On or Off. Returns the output of the command Dither?. <html></div></html>

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I2C Command Number:


Description

Returns the voltage measured on channel CHANNEL (in volts). The channels refer to:

  1. Servo Out
  2. Integrator
  3. DC Error
  4. Error Input
  5. Laser Current (1V = 1A)
  6. +2.5V Ref
  7. -2.5V Re
  8. Ground

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On

I2C Command Number: 39


Description

Returns the status of the laser servo (on or off). <html></div></html>

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I2C Command Number:


Description

Turns on the laser servo (engages the integrator). Returns the output of the command Servo?. <html></div></html>

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-2.345

I2C Command Number: 41


Description

Returns DC offset (in volts) applied to the error signal. <html></div></html>

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I2C Command Number:


Description

Sets the DC offset (in volts) applied to the error signal to OFFSET. Returns the output of the command DCOffst?. <html></div></html>

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25

I2C Command Number: 43


Description

Returns Servo Gain. Range is from 0-28 in steps of 2 dB. 0 is a special gain setting where there is no gain (error signal does not go to integrator). <html></div></html>

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I2C Command Number:


Description

Sets the Servo Gain. Range is from 0-28 in steps of 2 dB. 0 is a special gain setting where there is no gain (error signal does not go to integrator). Returns the output of the command GetGain? <html></div></html>

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Example:

  
129

I2C Command Number: 45


Description

Returns Integrator Op-Amp’s Offset Voltage adjustment value. Range is 0-255. <html></div></html>

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I2C Command Number:


Description

Sets the Integrator Op-Amp’s Offset Voltage adjustment value. This should be factory set, but it controls the DC Error Input voltage that the servo locks to (should be 0V) OFFSET is an integer from 0-255. Returns the output of the command OpOffst?. <html></div></html>

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Example:

  
2.341

I2C Command Number: 47


Description

Returns Servo Offset voltage (in volts). When the servo is engaged, this voltage is the starting voltage that the servo integrates from. <html></div></html>

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I2C Command Number:


Description

Sets the Servo Offset voltage (in volts) to OUTPUT when the servo is turned off. When the servo is engaged, this voltage is the starting voltage that the servo integrates from. Returns the output of the command SvOffst?. <html></div></html>

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2

I2C Command Number: 49


Description

Read Data Channel Mode. There are 3 modes for the Data Channel:

   Mode 1: Record DC Error
   Mode 2: Record Error Input
   Mode 3: Record DC Error and Error Input
   

Note: In Mode 3, the ramp records two channels of data instead of one, doubling the amount of data stored. <html></div></html>

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I2C Command Number:


Description

Sets the Data Channel Mode. See DataChn? for more details Returns the output of the command DataChn?. <html></div></html>

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5.72

I2C Command Number: 51


Description

Reads the sweep range (in volts) for the ramp. <html></div></html>

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I2C Command Number:


Description

Writes the sweep range (in volts) for the ramp. Range is from -10V to +10V. Returns the output from the command RampSwp?.

Note: RampSwp value is rounded and truncated to match range of the servo offset. <html></div></html>

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100

I2C Command Number: 53


Description

Returns the number of data points to be acquired during the ramp. Number of data points is also the number of steps for the ramp.

Note that the amount of bytes stored by the ramp is 2*RampNum. The amount of bytes stored set how much data needs to be read back via the ReadBlk command.

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I2C Command Number:


Description

Sets the number of data points to be acquired during the ramp. Number of data points is also the number of steps for the ramp. Number of data points to calculated by the following formula:

<html></div></html>

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I2C Command Number:


Description

Begins ramping the servo output and taking data according to the values set for RampSwp and SvOffst as described above. The Ramp begins at SvOffst - RampSwp/2 and ends of SvOffst + RampSwp/2. When the ramp is completed, the servo output is returned to its starting value of SvOffst. Data can be retrieved with the ReadBlk command. Board will not respond to any new commands while taking data. Returns status of execution of the ramp, either Busy or Finished. Returns fault if ramp is misconfigured. See RampNum? for details. Returns fail if laser is off. <html></div></html>

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3 0

I2C Command Number: 56


Description

Returns two columns of data. First column is a number 1-5 representing the integrator pole value. (1 = slowest integrator, 5 = fastest). The second column is a 0 when the differential pole is off and a 1 when it is on. <html></div></html>

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I2C Command Number:


Description

Sets the integrator and differential pole positions. INTEGRATOR is a value from 1-5. DIFFERENTIAL is either on (1) or off (0). See Poles? for more details. <html></div></html>

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4

I2C Command Number: 58


Description

Reads the event address for turning the laser off. Address range is 0-7 where address 0 is no event. <html></div></html>

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I2C Command Number:


Description

Sets the event address for turning the laser off. Address range is 0-7 where address 0 is no event. <html></div></html>

ice/commands/peaklock.1453246256.txt.gz · Last modified: 2021/08/26 14:26 (external edit)