Rev: 1.1, 22-Jun-2023 © 2023 Thorlabs
Page 25
PM103x Optical Power Meter Interfaces Chapter 4 Operating Instructions
4.2.3.3 Baud Rate
For PM103E, the Baud Rate can be adjusted from 9600 to 230400 Bit/s. This can be done either via the
ethnernet or via the serial interface using SCPI commands or driver functions. Please see the document
Write-Your-Own-Applications (WYOA) for PM103x. The default Baud Rate is 115200.
Note
After adjusting the Baud Rate via RS232, close the RS232 and reconnect with the desired Baud Rate in
order for the Baud Rate to communicate it via RS232.
4.2.3.4 Reset Button
The reset button reboots the internal micro controller of the PM103x. To press the button, please
use a small device that will not break inside the instrument. All settings are saved due to the internal
non-volatile memory.
4.2.3.5 Non-Volatile Memory
All PM103x models have an internal non-volatile memory for all settings (i.e. wavelength setting,
ranging, analog output configuration). The PM103x will start in the same configuration as prior to shut-
down.
4.2.3.6 Digital I/O Ports
PM103E
The PM103E has two configurable general purpose digital ports, DIO1 (Phoenix DMC connector, PIN
#7 ) and DIO2 (Phoenix DMC connector, PIN #5 ). Both ports can be configured as digital input or
output and queried per remote control command. These digital I/O ports use 3 V logic for output and
are tolerant for 5 V input signal.
DIO1 can additionally be configured as trigger in and output, when reading the data in the 100 kS/s
mode. The trigger function is supported by the Optical Power Monitor software. Alternatively, the DIO1
port can be controlled or monitored through SCPI commands in custom made software, as described in
the document WYOA for PM103x.
DIO2 can be configured as pass/fail analysis flag and queried per remote control command.
4.2.3.7 Analog Output
PM103E
The PM103E has two analog outputs, AO1 and AO2 (please see Pin assignment ).
The Analog Output ports provide the amplified photo-diode current or the pyroelectic sensor voltage,
depending on the sensor. The signal from the analog output AO1 is not wavelength- or zero- corrected.
The signal is measurement range dependent and can be calculated to:
8
35 35
35
To Next Page
Loading...
Need help?
General
