Multi-Tech Systems 7500 User Manual
ION 7500 / ION 7600 User’s Guide
Digital and Analog I/O
Chapter 5 - Features and Applications
Page 139
Digital and Analog I/O
The digital and analog I/O ports on ION meters let you bring a variety of data into
a common system, thereby simplifying data gathering. The the ION 7500 and
ION 7600 meters offers a variety of I/O combinations.
a common system, thereby simplifying data gathering. The the ION 7500 and
ION 7600 meters offers a variety of I/O combinations.
Standard in all meters are eight digital (status) inputs, four form A digital (solid-
state) outputs, three form C relay outputs (electromechanical), and two front panel
LED outputs. The digital inputs are ideal for monitoring status or counting pulses
from external dry contacts. The four Form A outputs are suitable for performing
end of interval pulsing, load control and alarm annunciation; the Form C relays are
suitable for load switching applications. The LED outputs are used for energy
pulsing and alarming.
state) outputs, three form C relay outputs (electromechanical), and two front panel
LED outputs. The digital inputs are ideal for monitoring status or counting pulses
from external dry contacts. The four Form A outputs are suitable for performing
end of interval pulsing, load control and alarm annunciation; the Form C relays are
suitable for load switching applications. The LED outputs are used for energy
pulsing and alarming.
There meter can be also be equipped with an optional I/O card which can include
analog inputs and/or analog outputs or additional digital inputs. Analog inputs let
you monitor a wide range of conditions, such as flow rates, RPM, fluid levels, oil
pressures and transformer temperatures. Analog outputs let you output realtime
power to an RTU or perform equipment control operations. Refer to the meter’s
datasheet for the ordering options available on the optional I/O card. This card
does not need to be ordered with your meter; it can be retrofitted to meters already
operating in the field.
analog inputs and/or analog outputs or additional digital inputs. Analog inputs let
you monitor a wide range of conditions, such as flow rates, RPM, fluid levels, oil
pressures and transformer temperatures. Analog outputs let you output realtime
power to an RTU or perform equipment control operations. Refer to the meter’s
datasheet for the ordering options available on the optional I/O card. This card
does not need to be ordered with your meter; it can be retrofitted to meters already
operating in the field.
The inputs are controlled by Digital Input modules. The outputs can be controlled
by Digital Output modules, Pulser modules, or Calibration Pulser modules. All of
these modules can act as intermediaries between the hardware port and the other
modules in the meter. They define the characteristics of outgoing signals or tell the
meter how to interpret incoming signals.
by Digital Output modules, Pulser modules, or Calibration Pulser modules. All of
these modules can act as intermediaries between the hardware port and the other
modules in the meter. They define the characteristics of outgoing signals or tell the
meter how to interpret incoming signals.
Refer to the technical note Digital and Analog I/O for more information regarding
digital and analog inputs and outputs than is provided in this User’s Guide.
digital and analog inputs and outputs than is provided in this User’s Guide.
Specifying a Port in an ION Module
The Digital Output, Digital Input, Analog Output, Analog Input, Pulser, and
Calibration Pulser modules have Port setup registers that allow you to specify
which port handles the outgoing or incoming signals. To assign a port to one of
these modules, simply modify the Port setup register by picking a port from the
enumerated list. This can be done with both Designer and ION Setup.
Calibration Pulser modules have Port setup registers that allow you to specify
which port handles the outgoing or incoming signals. To assign a port to one of
these modules, simply modify the Port setup register by picking a port from the
enumerated list. This can be done with both Designer and ION Setup.
Be aware that the enumerated list only displays those ports that are not yet
assigned to another module. For example, the meter’s factory configuration makes
use of Digital Output DO4 (it is already assigned to Calibration Pulser module
“kWh Pulser –D4”). If you create a new Digital Output module and set its Port
setup register, the port DO4 does not appear in the list of available ports.
assigned to another module. For example, the meter’s factory configuration makes
use of Digital Output DO4 (it is already assigned to Calibration Pulser module
“kWh Pulser –D4”). If you create a new Digital Output module and set its Port
setup register, the port DO4 does not appear in the list of available ports.
To make a port available, you must locate the module controlling the port and set
its Port setup register to N
its Port setup register to N
OT
U
SED
(or delete the module entirely). The port now
appears in the enumerated list.