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FLUO SENS integrated Manual January 2013
7 Establishing Connection with a Computer
7.1 Connecting a Single Detector
In order to connect the detector, a 10way flex cable is attached
at the backside of the detector. The function is to transfer power
as well as communication
A more detailed description of the pin assignment can be found
in section 3.
7.2 Connecting Multiple Detectors
Up to 16 RS485 or TTL detectors can be attached parallel to a
master. The MODBUS specifications allow up to 255 devices,
however the built-in drivers limit the number to 64 for RS485
and 16 for TTL versions.
The MODBUS address for each device must be set at a value
between 1 and 254 before being connected.
Each attached detector can be simultaneously prompted to
carry out a fluorescence measurement by using the Start
command in tandem with the MODBUS address „255“ or the
external trigger input.
This method can be utilized for multiple measurements of
microtitre plates.
Tip!
When multiple detectors are interconnected, the
driver load and the pulse-like current intake of the
LEDs must be taken into account.
Tip!
The RS485 version can also be connected to a
conventional RS232 or USB interface via an
interface converter.