Reads the current sense A/D and returns the result. On products that have multiple current sensors (HC and HCV), this command returns the sum of the individual sensor readings. In such cases the maximum returned value is 4095 * the number of sensors. See commands adi1? and adi2? (HC and HCV), and adi3? and adi4? (HCV).
Return type: int range: 0-4095 (but see description)
Reads the CPU temperature analog/digital converter channel. On HV, MV-21 and MV-40 systems this reads a thermistor mounted on the control board, and the temperature conversion formula used is:
degreesC = -counts * 2.5 / 4095 * 42.9019 + 79.26541
On other products this reads a signal internal to the CPU chip, and the temperature conversion formula is:
degreesC = (0.650 - (counts * 2.5 / 4095)) * 500.0 + 25.0
On all products the tcpu? command performs the correct conversion and returns a result in degrees C.
Return type: int range: 0-4095
Reads the laser voltage A/D converter and returns the result. The conversion of this result to voltage is system-dependent. The command v? always returns the properly scaled laser voltage.
Return type: int range: 0-4095
On HC and HCT systems, an A/D converter is used to sense the input voltage to the controller. This command reads the A/D converter and returns the result, an integer between 0 and 4095.
On HCT systems full scale in 7.5V. On HC systems full scale is 25.0V.
Return type: int range: 0-4095
Returns the current calibration constant in amps per DAC count. This is set at the factory and cannot be changed in the field.
Return type: float
Sets the state of the Autostart power-on enable feature. When this feature is enabled, Autostart will run each time the power supply is turned on.
Argument type: int range: 0-1
Aborts the Autostart regardless of its current state. Allows control of the unit using all the other commands.
Begins the Autostart procedure as if the unit was just turned on.
Returns 1 if Autostart is programmed to run the next time the controller is turned on, 0 if it is not.
Return type: int range: 0-1
Sets the safety time delay (CDRH) compliance mode of Autostart. A non-zero argument turns the feature on.
Argument type: int range: 0-1
Returns the safety time delay (CDRH) compliance mode of Autostart. A return value of 1 indicates that the feature is on.
Return type: int range: 0-1
Sets the value of the current (in Amps) that Autostart will use as a final operating state. On systems where constant power operation is available, this value is ignored if Autostart is set to constant power (see the asm and asm? commands). Regardless of whether Autostart is in constant current or constant power mode, the value sent by this command is stored in nonvolatile memory and retained by the controller until it is changed by a subsequent asi command.
Argument type: float
Returns the value of the current (in Amps) that Autostart will use as a final operating state. On systems where constant power operation is available, this value is ignored if Autostart is set to constant power (see the asm and asm? commands).
Return type: float
Returns the state of the Autostart. The reply is a small integer whose meaning varies from one product to another. Consult the product manual for the list of Autostart states for your specific product.
Return type: int
Returns the control mode of the laser, either "i" or "c", indicating constant current mode or constant power mode, respectively.
Return type: string
Clears any active fault. If the laser was shut down because of a fault condition, this command will allow it to operate again. A Laser On command (l1) is required to resume laser operation.
Causes the laser to enter constant current mode at the last measured value of operating current. If the laser is disabled when this command is issued, it will turn on in constant current mode in response to a subsequent "l1" command.
Disables the use of Verhoeff checksums in all subsequent communications. Checksums are disabled by default on system power-up. Note that the Verhoeff algorithm does not permit negative numbers.
Enables the use of Verhoeff checksums in all subsequent communications. Checksums are disabled by default on system power-up. This is an obsolete feature of some controllers and its use is deprecated.
Returns the on/off state of the bulk DC power supply.
Return type: int range: 0-1
Returns a small integer indicating the presence of a system fault. A zero return indicates that the system is working properly. A non-zero return indicates that the system has shut off the laser because of a fault condition. The meaning of the fault code varies from one product to another.
Return type: int
Returns the total system operating hours.
Return type: float
Sets the laser current in amps.
Argument type: float
Reads the laser current in amps.
Return type: float
Returns the laser current as measured by the controller, regardless of whether the system is in constant power (when supported) or constant current mode. In constant current mode, or when the system is off, measurement errors may cause the returned value to differ slightly from the current set point. This value is uncalibrated and is only suitable for diagnostic purposes.
If the system supports constant power operation and it is enabled, this command is equivalent to i?.
Return type: float
Returns the last value written to the DAC1. On early DPSS systems this value limits the output of the hardware constant power servo. On MV systems this is a hardware current limit used in external control mode. On most systems it is set to a value of 4095 when the laser in on. It is controlled automatically by firmware and cannot be set directly by the end user.
Return type: int range: 0-4095
Enables or disables the external analog current offset feature.
Argument type: int range: 0-1
Returns the state of the external analog current offset feature.
Return type: int range: 0-1
Returns the constant current set point in amps. In constant current mode this is equivalent to i?.
Return type: float
Returns the allowed system maximum current (in amps).
Return type: float
Turns the laser off. The operating current (if in constant current mode), or the light power (if in constant power mode) is saved in volatile memory. When the "laser on (l1)" command is issued the laser will restart at the stored setting.
Turns the laser on at the last current or light power setting. When the controller is first powered on, the operating conditions default to current control at 0.0 amps.
Return type: int
Returns the last value written to the current control DAC.
Return type: int range: 0-4095
Sets the maximum allowed laser current in amps. This command allows the user to set the current ceiling for a particular laser device. This value is stored in non-volatile memory, and will remain in effect until the next "limax" command is issued.
Argument type: float
Returns the maximum allowed laser current. See "limax" for further information.
Return type: float
Sets the pulse enable state, either enabled (1) or disabled (0, CW operation).
Argument type: int range: 0-1
Returns the pulse enable state, either enabled (1) or disabled (0, CW operation).
Return type: int range: 0-1
Sets the pulse mode. 0 selects internal operation wherein the pulse repetition rate and pulse width are set by the controller. 1 selects external operation wherein an applied logic signal determines the repetition rate and pulse width.
Argument type: int range: 0-1
Returns the pulse mode. 0 indicates internal operation wherein the pulse repetition rate and pulse width are set by the controller. 1 indicates external operation wherein an applied logic signal determines the repetition rate and pulse width.
Return type: int range: 0-1
Returns the true pulse period. Accounts for the fact that the pulse period and pulse length must sometimes be rounded off due to limited precision of the timing hardware.
Return type: int
Sets the pulse repetition rate in pulses per second. Applies to internal pulse mode only. The upper limit of the repetition rate varies from one product to another, and can be determined with the plrrm? command.
Argument type: float
Returns the pulse repetition rate in pulses per second. The value is only meaningful in internal mode, although the command always returns the last set value.
Return type: float
Returns the maximum allowed repetition rate, which is system type dependent. This is set at the factory.
Return type: float
Sets the pulse width in seconds. Applies only to internal mode. The maximum possible value is the inverse of the repetition rate (plrr/plrr? commands).
Argument type: float
Returns the pulse width in seconds. The value is only meaningful in internal mode, although this command always returns the last set value.
Return type: float
Returns the true pulse width. Accounts for the fact that the pulse period and pulse length must sometimes be rounded off due to limited precision of the timing hardware.
Return type: int
Sets the current ramp rate in amps per second.
Argument type: float
Returns the current ramp rate in amps per second.
Return type: float
Enables/disables the current ramp.
On HV systems this works as follows: when disabled, the current attains the set point as fast as the hardware will allow. When enabled, there is a software current ramp, the rate of which is determined by the argument to the "raps" command.
.On MV systems: when disabled, the current attains the set point as fast as the hardware will allow. When enabled, the progress of the ramp is determined by the requirements of the DiodeGuard circuit; the current ramp rate is sufficiently slow that DiodeGuard remains locked and active at all times.
Argument type: int range: 0-1
Returns the state of the current ramp (enabled or disabled).
Return type: int range: 0-1
Returns the system's serial number, a 32-bit unsigned integer. This is set at the factory and cannot be changed in the field.
Return type: int
Returns the temperature of the CPU chip in degrees C. A temperature reading greater than 65 degrees will shut off the system with a fault.
Return type: float
Activates any controller receiving the message. This is only relevant for systems that utilize RS-485 communication, and on other systems is retained for compatibility.
Activates the controller whose local address matches the argument, and deactivates any other controller receiving the message. This command is used to select one controller in a multiple-controller environment. This is used for controllers communicating by RS-485, and is otherwise retained for compatibility.
Argument type: int range: 0-65535
Activates the controller whose serial number matches the argument, a 32-bit unsigned integer, and deactivates any other controller receiving the message. This command is used to select one controller in a multiple-controller environment. This is used for controllers communicating by RS-485, and is otherwise retained for compatibility.
Argument type: int
Reads the calibrated laser voltage and returns the result.
Return type: float
Returns the firmware version number.
Return type: int