Analog output behavior
Your meter’s analog output, after it is configured, outputs voltage or current signals. If your
meter’s analog output source becomes unavailable (N/A) the analog output level should go to
zero (0 V/0 mA) under most conditions.
When your meter is powered off or configured to send voltage, the meter registers as a high
impedance.
The electrical signal on the analog output is DC; make sure proper polarity is observed when
wiring external devices to the analog output ports.
Analog output zero scale and full scale values
In most cases, your meter’s analog output range matches the range of the analog sensors that
your meter’s outputs are connected to. In that case, your meter’s analog output zero scale and full
scale values are the maximum and minimum values of the source driving your meter’s analog
output. These values are used to normalize the source value to a value between 0 and 1 which is
applied to the operating range of the analog output port to determine the analog output current or
voltage. For example:
Source value Analog output register values Meter’s analog output signal
0–120 kW range
100 kW
Full scale = 120 (kW)
Zero scale = 0 (kW)
Normalized: 0.83
4–20 mA range
Output: 17.33 mA
0–120 kW range
100 kW
Full scale = 120 (kW)
Zero scale = 0 (kW)
Normalized: 0.83
0–20 mA range
1
Output: 16.67 mA
1
Analog I/O option module must have firmware version v1.2 or later.
If your meter’s analog output range does not match the range of the connected analog sensor,
you must calculate the full scale and zero scale values by analyzing the system.
For more information on the Analog Output module, see ION Reference, available on
www.usa.siemens.com/pds.
Configuring option module analog outputs using ION Setup
You can configure option module analog outputs using ION Setup.
Analog outputs are available on the optional I/O modules.
Calculate your zero scale and full scale values based on the measured value and the analog
output range of your meter.
Make sure that the analog output port that you want to use is properly connected to an analog
receiver.
1. Start ION Setup.
2. Open the Setup Assistant for your meter.
9810 series - User manual Inputs/Outputs
7EN05-0390-08 134
To Next Page
Loading...
