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Inputs / outputs
Inputs / outputs
I/O overview
Your meter has onboard digital I/O which can be increased by adding optional
digital and analog I/O modules to expand your meter’s I/O capabilities.
WARNING
UNINTENDED OPERATION
Failure to follow these instructions can result in death, serious injury, or
equipment damage.
Do not use the meter for critical control or protection applications where human
or equipment safety relies on the operation of the control circuit.
Your meter base has:
• eight digital inputs
• four form A digital outputs
• two form C relays
• kWh energy pulsing LEDs (one visible, one infrared)
• kVARh energy pulsing LEDs (one visible, one infrared)
You can view information about your meter’s I/O through the display and
webpages, and configure your meter’s I/O using ION Setup.
Input/output ION modules
ION modules are used to configure your meter’s digital or analog inputs/outputs (I/
O).
You need to configure the following ION modules in order to use the meter’s digital
or analog I/O.
• Digital input: uses the Digital Input module, which tells the meter how to
interpret incoming signals.
• Digital output: uses one of three ION modules depending on the application.
◦
Digital Output module: monitors a change of state to control relay
operation via a hardware output device.
◦
Pulser module: transfers high-speed pulses to a hardware pulse counting
device that is used to track energy usage.
◦ Calibration Pulser module: integrates instantaneous power inputs, then
outputs high-speed pulses to an LED that can be monitored for energy
accuracy verification.
• Analog input: uses the Analog Input module, which tells the meter how to
interpret an incoming analog voltage or current signal from transducers.
• Analog output: uses the Analog Output module to deliver a continuous direct
voltage or current analog signal to transducers.
NOTE: All of these modules can act as intermediaries between the physical
hardware port and the other modules in the meter. They define the
characteristics of the incoming and outgoing signals.
70 7EN05-0390-00