Real-time functions and outputs
QuantumX A03031_24_E00_01 HBM: public 161
In contrast to other modules, the MX878B has no analog sensor inputs.
Instead it receives data from other modules via the
”isochronous IEEE1394b
FireWire transfer” from any source within the system configured for this data
transfer mode. The module routes this data to an analog output or performs a
math computation on this data (which may also be output on one of the analog
outputs).
You need to connect all modules via IEEE1394b FireWire (or use a backplane)
for the MX878 to become operational! You can configure several channels to
”isochronous IEEE1394b FireWire transfer” using QuantumX Assistant soft
ware or catman®AP 3.1 or higher.
Please note:
Providing the data via isochronous transfer may use up significant computing
power on the module (in particular on the MX410B module and the MX460B
high-speed module). Do not activate the isochronous data transfer unless it is
actually needed!
Add & Multiply functions
The MX878B currently provides the following type of computation:
Result = a0 + a1*InputSignal1 +
a2*InputSignal2 +
a3*InputSignal1*InputSignal2
Where InputSignal1 and InputSignal2 denote the two input signals used for this
computation.
These channels will reside on other modules and must have their isochronous
IEEE1394b FireWire transfer enabled.
Keep in mind the following notes when working with math channels:
S The maximum sampling rate is 2400 Hz
S The sampling rate of the channel must not be higher than the sampling rate
of the input channels.
S Filters do not apply to math channels. These channels are always unfil
tered.
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