TEM PSD Reader Bedienungsanleitung
PSD Reader User Manual
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Table of Contents
1Introduction .................................................................................................................... 4
2Block Diagram PSD Reader........................................................................................... 4
3Description of the Front Panel Elements ........................................................................ 5
3.1 RS232 Version (optional) ........................................................................................ 5
3.2 RS422 Version (optional) ........................................................................................ 6
3.3 Version with DAC output (optional).......................................................................... 6
4Connection of the PSD Reader ...................................................................................... 7
4.1 Aligna Con (optional)............................................................................................... 7
4.2 PSD Reader with DAC (optional)............................................................................. 8
5Software Installation....................................................................................................... 8
5.1 Installing the Kangoo Software................................................................................ 8
5.2 Installing USB driver...............................................................................................10
6Upgrading the Firmware................................................................................................10
7Interfacing with a PC.....................................................................................................11
7.1 Variables................................................................................................................11
7.2 Commands.............................................................................................................14
8Using the Kangoo Software...........................................................................................15
8.1 Basic Kangoo Features..........................................................................................15
8.1.1 Buttons and Devices .......................................................................................15
8.1.2 Sections..........................................................................................................16
8.1.3 Further Kangoo Functions...............................................................................16
8.2Kangoo Configuration “CrossHair 4D” ....................................................................17
8.3 Pulsed Lasers ........................................................................................................18
8.4 Automatic Pointing data output...............................................................................20
8.5 Optional: DAC output .............................................................................................20
9Delivery Content............................................................................................................20
10 Pinout........................................................................................................................21
10.1 RJ45 for RS422 (optional)......................................................................................21
10.2 SUB-D 9 for RS232 (optional) ................................................................................21
10.3 DAC output (optional).............................................................................................22
11 Electrical Specification...............................................................................................22
11.1 Environmental Conditions.......................................................................................22
11.2 PSD Reader Device...............................................................................................22
11.3 USB COM Interface................................................................................................22
11.4 RS232 or RS422 Interface (optional)......................................................................22
11.5 Mains Power Connection........................................................................................22
12 Customer Service......................................................................................................23
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PSD Reader User Manual
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1 Introduction
The PSD Reader from TEM Messtechnik is a multi-purpose device for measuring physical
values (optical power, voltage, current) and display them on a PC. In standard application the
sensor is a PSD4Dc (or derivatives like PSD2D or PSDe) and the device displays the four
degrees of freedom of a laser´s beam pointing (angle phi and theta, position x and y, or just
two degrees of freedom in case of using a PSD2D).
In customized applications the device is able to act as a digital regulator which measures a
value, compares it to a setpoint and provides an output to feed it to an actuator.
Since the signal processing is exclusively done by a microcontroller, the PSD Reader device
shows great flexibility. All important parameters and settings are accessible by interfacing the
device with a PC, either using the dedicated program Kangoo or user-supplied software
2 Block Diagram PSD Reader
At the heart of the PSD Reader device lies a microcontroller, which handles all
communications over the USB interface and over the I2C or SPI bus. For reading input
signals or acquiring data, the PSD Reader is equipped with an 8-channel, 16-bit ADC with an
input range of +/-10V.
Figure 1 Block diagram, optional components shown semi-transparent
The standard configuration of the PSD Reader electronics features one 8-channel input
connector for feeding in PSD- or photodiode-signals.
Optionally the controller can do signal processing, such as the implementation of PID-
regulators, the generation of control signals for micro-stepper motors or digital filtering.
Optional signal output is provided by a 4-channel, 16-bit digital-to-analog converter (DAC).
The output range of this DAC is +/-10V.
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3 Description of the Front Panel Elements
Figure 2 Top view of the PSD Reader
Table 1 Function of the front panel elements
1
PSD input
HD-15 connector: PSD input, I2C, SPI, supply voltages
2
Power plug
Input for coaxial power connector (5,5/2,5 mm)
3
Status LED
LED indicator for intensity status:
Slow “breathing”: intensity OK
Fast “breathing”: intensity too high or too low
4
USB port
USB port for the connection to a PC and the Kangoo software
5
Prog Key
Hold key and switching on power supply: Enter program mode
In normal use: Perform Autogain
3.1 RS232 Version (optional)
Figure 3 Top view of the PSD Reader
Table 2 Function of the front panel elements
1
RS232 port
SUB-D 9 Connector for the communication via RS232 to a PC
and the Kangoo software
2
PSD input
HD-15 connector: PSD input, I2C, SPI, supply voltages
3
Power plug
Input for coaxial power connector (5,5/2,5 mm)
4
Status LED
LED indicator for microcontroller activity
5
USB port
USB port for flashing the microcontroller
6
Prog Key
Hold key and switching on power supply: Enter program mode
In normal use: Perform Autogain
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3.2 RS422 Version (optional)
Figure 4 Top view of the PSD Reader
Table 3 Function of the front panel elements
1
RS422 port
RJ45 Connector for the communication via RS422 to a PC and
the Kangoo software
2
PSD input
HD-15 connector: PSD input, I2C, SPI, supply voltages
3
Power plug
Input for coaxial power connector (5,5/2,5 mm)
4
Status LED
LED indicator for microcontroller activity
5
USB port
USB port for flashing the microcontroller
6
Prog Key
Hold key and switching on power supply: Enter program mode
In normal use: Perform Autogain
3.3 Version with DAC output (optional)
Figure 5 Top view of the PSD Reader
Table 4 Function of the front panel elements
1
DAC output
HD-15 connector: Pointing and trigger signals output
Pin1: DacA, Pin2, DacB, Pin 3: DacC, Pin 4: DacD, Pin 8: SG,
Pin11: Trigger out, Pin 12: DAC update, Pin 13: Sampling
(Pulsed Mode)
2
PSD input
HD-15 connector: PSD input, I2C, SPI, supply voltages
3
Power plug
Input for coaxial power connector (5,5/2,5 mm)
4
Status LED
LED indicator for microcontroller activity
5
USB port
USB port for flashing the microcontroller
6
Prog Key
Hold key and switching on power supply: Enter program mode
In normal use: Perform Autogain
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4 Connection of the PSD Reader
The PSD Reader is commonly used to set the gain of the PSD detectors and read out the
position and angle data. For this purpose the PSD detector is connected via Sub-D 15 HD
cable (1:1 Pin connection) to the PSD Reader. This configuration is shown in Figure 6. The
12 Volt power supply of the PSD Reader is used to supply the electronics and the PSD
detector. For the communication to the PC a UBS cable is included.
Figure 6 Connection of the PSD Reader
4.1 Aligna Con (optional)
TEM Messtechnik GmbH offers an Aligna Con module to get access to the raw signals of the
PSD via BNC connector. This allows a monitoring of the signal with e.g. an oscilloscope
without limitation of the bandwidths. The Aligna Con is either inserted into the connection
between the PSD and the PSD Reader or connected to the PSD reader with a y-adapter
cable (see Figure 7 and Figure 8).
Figure 7 In-Line configuration
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Figure 8 Y-configuration
4.2 PSD Reader with DAC (optional)
If ordered the PSD Reader can equip with a 4 channel digital-to-analog converter, providing
+/-10 volts per channel. The output voltages can be controlled via Kangoo Software or
coupled to the measured pointing data. As pointing output the voltages correspond to the
measured position in mrad or mm (mrad or mm / Volt). The four pointing signals can be
connected at the DAC output via AlignaCon module to an oscilloscope.
5 Software Installation
5.1 Installing the Kangoo Software
To install the Kangoo software, start the program “Install.exe” in the root directory of the
installation CD. The installer will show a welcome screen with several options.
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Figure 9 Kangoo installation: Welcome screen
“Details” informs you about the installation procedure.
“Source path” indicates the source path of the installation.
“Destination Path”: Here, you can choose the desired destination path. The standard
directory is “TEM” in the "ProgramFiles" folder. On Windows Visa or Windows 7 systems,
please avoid the "Program Files" folder and choose the path "C:/TEM”!
The button “OK, install now!” starts copying all required files from the source path to the
destination path.
During the installation procedure, the installation program checks all required files.
Figure 10 Kangoo installation: Progress
The program then creates a list of file copy commands. When this list is complete, you can
check the list and start the copy procedure.
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Figure 11 Kangoo installation: Start copy procedure
Figure 12 Kangoo installation: Summary
Figure 13 Kangoo installation: Successful installation
5.2 Installing USB driver
Typically, when the USB connection between the micro-controller and a PC is first made,
Windows will open the Found New Hardware Wizard. Here, choose to install drivers from a
user-specified location. The necessary driver file is located in the directory
“TEM/Service/USB Driver” in the Kangoo installation directory (or on the USB Stick). The
Hardware Wizard will now finish the installation and no further configuration will be
necessary. Once the installation is complete, Windows will assign a COM-port. To find out
which COM-port has been assigned, check for a new entry in the section “Ports (COM &
LPT)” of the device manager.
6 Upgrading the Firmware
Please contact TEM Messtechnik for details about firmware upgrades.
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