Jetter JetWeb JX2-IA4, Operator'S Manual

Page: 22 / 25

5.2 Registers of the JX2-IA4 Module JetWeb
22 Jetter AG
For communication with the CPU, 5 registers have been provided by the JX2-IA4
module. The operating system version number of the module can always be read
from register 9. The other module registers are being defined by the function of the
module. The registers are addressed as follows:
xx = Module number
YY = Module number -2
Example: Configuring and Evaluating Measurements
Task definitions for the first expansion module:
1. A unipolar input voltage ranging from 0 to 10 V is to be measured using channel
1. Register 3yy0 contains the input voltage.
2. A bipolar input voltage ranging from -10 V to +10 V is to be measured using
channel 2. Register 3yy1 contains the input voltage.
3. An input current ranging from 0 to 20 mA is to be measured using channel 3.
Register 3yy2 contains the input voltage.
4. A unipolar input voltage ranging from 0 to 10 V is to be measured using channel
4. Register 3yy3 contains the input voltage.
Comments on the approach for task # 1:
Configuring Inputs and Outputs
JX2-IA4
Inputs A/D Value Voltage Current
Register Unipolar Bipolar
Channel # 1 3yy0 xxx0xxx0 xxx1xxx0 xxxxxxx1
Channel # 2 3yy1 xx0xxx0x xx1xxx0x xxxxxx1x
Channel # 3 3yy2 x0xxx0xx x1xxx0xx xxxxx1xx
Channel # 4 3yy3 0xxx0xxx 1xxx0xxx xxxx1xxx
Output
↑↑↑↑↑↑↑↑ ↑↑↑↑↑↑↑↑ ↑↑↑↑↑↑↑↑
Configuring
Virtual
Outputs
xx01
through
xx08
87654321 87654321 87654321
Output numbers
Note!
To carry out measurements, the virtual outputs for the respective measuring
method (unipolar, bipolar, current) have to be set in the program.
The assignment can be seen from table "Configuring Inputs and Outputs" on
page 22.