Rockwell-automation 1769-IF4XOF2 Compact 8-Bit Low Resolution Analog I Manual do Utilizador descarregar pdf (Página 52)

Publication 1769-UM008A-EN-P - November 2001

4-8 1769-IF4XOF2 Module Data, Status, and Configuration Channels

Output Data Resolution and Format

The resolution of an analog output channel depends on the output

type/range and data format selected. The following table provides

detailed resolution information for the module.

Configuration Data File

The configuration file allows you to enable or disable an input or

output channel. It also allows you to configure the operation of the

outputs during a mode change to Program or a Fault condition.

Word 0 bits 4, 5, 6 and 7 allow the individual input channels to be

enabled or disabled. Word 1 bits 4 and 5 allow the individual output

channels to be enabled or disabled.

Table 4.5 Output Resolution

Full Output Range RAW/Proportional Data

Significant Bits Resolution per LSB Decimal

Representation of

Output

Count Value

0V to 10.5 V dc Sign + 8 bits 41.18mV 0 to 32640 128 (1LSB)

0 mA to 21 mA Sign + 8 bits 82.35mA 0 to 32640 128 (1LSB)

TIP

Not all controllers support program access to the

configuration file. Refer to your controller’s user

manual.

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Rockwell-automation 1769-IF4XOF2 Compact 8-Bit Low Resolution Analog I Manual do Utilizador Página 52