HBM MX440B - Page 181

Functions and outputs
Quantum
X
I3031-14.0 HBM: public 181
The modules can receive all signals that are isochron
ously available on the IEEE1394b FireWire.
The settings for this are implemented with the QuantumX
Assistant. Before output at the analog output, the signal
passes through an output characteristic curve parameter
ized by the user (2-point scaling) and a filter also para
meterized by the user. In addition, the rate for DAC is
reduced to 96 kS/s through interpolation.
Math channels
The MX878B is a dedicated module designed for analog
outputs and math channels.
The MX878B supports 4 math channels and peak value
detection channels.
In contrast to other modules, the MX878B has no analog
sensor inputs. Instead it receives data from other mod
ules 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 out
puts).
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 Quan
tumX Assistant software 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!