HBM MX440B - Page 185

Functions and outputs
Quantum
X
I3031-14.0 HBM: public 185
Graph for the peak value function
Measurement
signal
Output
t
V
i
, V
o
Hold
Run Run
Function
Operating mode
Peak value
Follow
Analog outputs of the MX878B
The MX878B is a dedicated module designed for analog
outputs and math channels. 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”. The module then routes
this data to an analog output.
You need to connect all modules via IEEE1394b
FireWire (or use a backplane) for the MX878B to become
operational! Please note the ”ISO” column in the cat
man® channel configuration window. This column indi
cates if a channel provides its data via the isochronous
link (indicated by a symbol). Click the column or use the
column’s context menu to enable or disable isochronous
transfer for a channel.
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!