Multi-Tech Systems 7500 Manuel D’Utilisation
Energy Pulsing from ION Meters
ION 7500 / ION 7600 User’s Guide
Page 232
Digital and Analog I/O Technical Note
Energy Pulsing from ION Meters
If you wish to use one of the digital outputs on an ION 7300 Series, ION 7500, ION
7600, or ION 8000 meter for energy pulsing applications (Wh, kVAh, kVARh),
assign it any Pulser, Digital Output, or Calibration Pulser module.
7600, or ION 8000 meter for energy pulsing applications (Wh, kVAh, kVARh),
assign it any Pulser, Digital Output, or Calibration Pulser module.
N
OTE
In the ION 7300 Series, ION 7500, and ION 7600 meters,ION 7600, one of the solid-state relays (DO4)
is preconfigured for calibration pulsing. It outputs a pulse for every 1.8 Wh measured and is controlled
by the Calibration Pulser module. This default configuration can be disabled. Refer to the meter’s User’s
Guide to learn how to disable this default configuration.
is preconfigured for calibration pulsing. It outputs a pulse for every 1.8 Wh measured and is controlled
by the Calibration Pulser module. This default configuration can be disabled. Refer to the meter’s User’s
Guide to learn how to disable this default configuration.
On all these meters, an energy pulsing LED is preconfigured to pulse every 1.8 Wh
(1.2 Wh on 35S socket meters). A Calibration Pulser module controls it. You can
configure the LED for other energy pulsing applications (kVAh, kVARh) by
disabling the default configuration and then assigning it any Pulser, Digital
Output, or Calibration Pulsar module.
(1.2 Wh on 35S socket meters). A Calibration Pulser module controls it. You can
configure the LED for other energy pulsing applications (kVAh, kVARh) by
disabling the default configuration and then assigning it any Pulser, Digital
Output, or Calibration Pulsar module.
On the ION 6200, two Pulser software modules are pre-set to send pulses every
1 kWh and every 1 kVARh to the solid state relays on the meter.
1 kWh and every 1 kVARh to the solid state relays on the meter.
The infrared port on the ION 7300 Series meters can also be used for energy
pulsing. To do this, you must set the communications protocol to
pulsing. To do this, you must set the communications protocol to
INFRARED
I
/
O
.
Then choose one of the Pulser modules and specify the infrared port in its setup
register.
register.
One Digital Output, Calibration Pulser, or Pulser ION module corresponds to each
physical output port.
physical output port.
Digital Output module: A Digital Output module takes a Boolean input and sends
it out a hardware channel as a constant level or a complete pulse.
it out a hardware channel as a constant level or a complete pulse.
Calibration Pulser module: All ION meters have Calibration Pulser modules that
allow you to generate high accuracy energy pulses for calibration testing. They
integrate instantaneous power inputs. A Calibration Pulser module takes numeric
input and sends a pulse out a hardware channel based on the calibration constant
(Kt). This value defines how much energy accumulates before a pulse is sent to the
hardware channel.
allow you to generate high accuracy energy pulses for calibration testing. They
integrate instantaneous power inputs. A Calibration Pulser module takes numeric
input and sends a pulse out a hardware channel based on the calibration constant
(Kt). This value defines how much energy accumulates before a pulse is sent to the
hardware channel.
Pulser module: A Pulser module takes a pulse input from any other ION module’s
output register and sends a pulse to a specific hardware channel based on the pulse
width. A Pulser module takes an instantaneous pulse and converts it to either a
complete pulse or a transition pulse for a hardware channel.
output register and sends a pulse to a specific hardware channel based on the pulse
width. A Pulser module takes an instantaneous pulse and converts it to either a
complete pulse or a transition pulse for a hardware channel.
N
OTE
By default, the Form C digital outputs are normally open in the KY position upon power up. If a Form C
output is used for Watt-Hour pulsing and the meter is powered down when the output is closed in the
KY position, then a false transition occurs as the output returns to its default (KY) position. To compensate
for the extra pulse generated on power down, the first pulse after power up is ignored, i.e., there is no
transition on the Form C output until the second Watt-Hour pulse is generated by the meter. This
mechanism ensures that the correct number of Watt-Hour pulses are provided, regardless of the state the
Form C outputs are in when the meter is powered down.
output is used for Watt-Hour pulsing and the meter is powered down when the output is closed in the
KY position, then a false transition occurs as the output returns to its default (KY) position. To compensate
for the extra pulse generated on power down, the first pulse after power up is ignored, i.e., there is no
transition on the Form C output until the second Watt-Hour pulse is generated by the meter. This
mechanism ensures that the correct number of Watt-Hour pulses are provided, regardless of the state the
Form C outputs are in when the meter is powered down.