Description of functions
Copyright IXXAT Automation GmbH
12
CANio 500 Quickstart Manual, version 1.3
The following output ranges can be selected via the software for every individ-
ual analog output: +5 V, +10 V, +/-5 V, +/-10 V.
The voltages on the output can be calculated with the following formulae:
For unipolar outputs (+5 V, +10 V, +10.8V):
U
Ana-out
= AD value / 4096 * output range [V]
With:
U
Ana-out:
voltage on the analog output
AD value:
value of the analog output in the CAN message.
The AD value is to be inserted with 0 to 4095 in each
case.
Output range:
5, 10 or 10.8 V
For bipolar outputs (+/-5 V, +/-10 V, +/-10.8 V):
U
Ana-out
= AD value / 2048 * output range [V]
With:
U
Ana-out:
voltage on the analog output
AD value:
value of the analog output in the CAN message.
The AD value is to be inserted with 0 to 2047 (0x000
to 0x7FF) in each case for positive voltages and -1 to
-2048 (0xFFF to 0x800) for negative voltages.
Output range:
5, 10 or 10.8 V
4.6
Analog inputs
The CANio 500 has four analog inputs with a differential input amplifier, which
can be monitored with a CAN message. More information is given in chapter
5.1.8.
The inputs ANA_INx_P
1
for the positive (+ plus) and ANA_INx_M for the nega-
tive (- minus) voltage level are connected to the analog connector (X4). The
input (+ plus) should be connected to the positive voltage level and the input (-
minus) to the negative voltage level. In the case of the device versions with a
+/- input range, polarity reversal according to the calculation from the AD value
produces a negative voltage or current value.
1
x stands for channel 1,2,…4