Allen-Bradley 1734-OB2, User Manual, Page: 20 / 221

Rockwell Automation Publication 1734-UM001E-EN-P - July 2013
4 About the Modules
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Channel 1 Status (1 byte)
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Output modules consume 4 bytes of data.
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Channel 0 Data (2 bytes)
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Channel 1 Data (2 bytes)
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Output modules produce 2 bytes of data.
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Channel 0 Status (1 byte)
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Channel 1 Status (1 byte)
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Operational modes
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Current - two modes
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0 to 20 mA
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4 to 20 mA (default mode)
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Voltage - two modes
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0 to 10V (default mode)
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-10 to +10V
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Individually set channel mode
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Scaling - conversion to engineering units
Input Modules
These features are available on input modules.
• Latching alarms, when set, latch low- and high-alarm status information.
Available alarms include:
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Low.
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Low Low.
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High.
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High High.
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Disable alarms - disables all channel alarms and faults so they are not
reported in the channel status field. Four different alarms are available.
• Settable update rate update rate determines how often an input channel is
scanned.
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Notch filter is selectable for both inputs (50, 60, 250, and
500 Hz).
• Digital filter sets a time constant.
Output Modules
These are features available on output modules.
•
Latching alarms, when set, latch low and high clamp alarm status
information.