Справочник Пользователя для Siemens SITRANS FUS1010 NEMA-4X/ IP 65
Manual Addendum
1010FMA-14
2
May 2002
1010N-2 I/O Module
The conventional 1010N-2 I/O module provides the following:
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Two self-powered, isolated 4-20 mA current loops (signals Io1 and Io2) that are assignable and
spannable by the user to many flowmeter variables such as flow, sonic velocity, signal strength,
etc. These self-powered outputs also provide an industry-standard fault indication by dropping
to 2 mA if assigned to flow rate and under fault conditions. Note that these outputs, though
isolated from the system, are NOT isolated from each other.
spannable by the user to many flowmeter variables such as flow, sonic velocity, signal strength,
etc. These self-powered outputs also provide an industry-standard fault indication by dropping
to 2 mA if assigned to flow rate and under fault conditions. Note that these outputs, though
isolated from the system, are NOT isolated from each other.
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Two 0-10 Vdc outputs (signals Vo1 and Vo2) that are also assignable and spannable by the
user as above. These are also self-powered, but are not isolated from the system.
user as above. These are also self-powered, but are not isolated from the system.
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Two 0-5000 Hz Pgen signals (Pgen1 and Pgen2) also assignable and spannable by the user.
These are TTL level pulses.
These are TTL level pulses.
The 1010N/DN class of meters has a total of six analog outputs as indicated above. In addition (refer to
Installation Drawings 1010N-2-7 and 1010N-7-7):
Installation Drawings 1010N-2-7 and 1010N-7-7):
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Alarms/Status/Totalizer pulses are generally presented as relay closures as either Mercury
Wetted Form 1A or Dry Reed Form C relays.
Wetted Form 1A or Dry Reed Form C relays.
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Analog inputs, when provided, are in the form of 4-20 mA non-isolated inputs.
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The meter also has four non-isolated totalizer command lines providing Totalizer Clear and
Totalizer Hold (NoTot) functionality.
Totalizer Hold (NoTot) functionality.
1010N-7 Expanded I/O Module Option
The Expanded I/O Module Option provides all of the above plus the following outputs:
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The four signals that drive the pulse generator outputs (Pgen 1 and Pgen2) and voltage outputs
(Vo1 and Vo2) of the meter create four current outputs: Aux Io1, Aux Io2, Aux Io3 and Aux Io4
(see diagram on next page).
(Vo1 and Vo2) of the meter create four current outputs: Aux Io1, Aux Io2, Aux Io3 and Aux Io4
(see diagram on next page).
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By spanning and assigning a system variable to 0-10 volt (Vo1 and Vo2) or 0-5000 Hz pulse
output (Pgen1 and Pgen2) the module simultaneously outputs these signals to the Expanded
I/O Module Option Aux outputs. For a 2-Channel meter the programming assignments are as
follows:
output (Pgen1 and Pgen2) the module simultaneously outputs these signals to the Expanded
I/O Module Option Aux outputs. For a 2-Channel meter the programming assignments are as
follows:
CHANNEL
SIGNAL
AUX Io
METER MENU DISPLAY
CH1
Pgen1
Io1
Vo1
Vo1
Io3
Pgen1
CH2
Pgen2
Io2
Vo1
Vo2
Io4
Pgen1
TYPICAL 2-CHANNEL METER EXPANDED I/O OPTION CONNECTIONS
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Note that the four Aux Io outputs are externally powered.