Rockwell-automation 1769-OF4VI Compact I/O Isolated Analog Modules User Manual download pdf (Page 64)

Publication 1769-UM014B-EN-P - May 2010

4-12 Module Data, Status, and Channel Configuration for the Output Modules

Ramping only takes place, if configured, when the output is being commanded

to go to a fault state. Ramping is not done in normal run operation. The ramp

rate values are entered in the Configuration Data file and are accepted as valid

only if:

 the number of counts entered for a channel’s ramp rate is greater than or

equal to a minimum of 1% of the total number of full scale counts for

the channel’s selected data format.

See Ramping Types on page 4-11 and 1769-OF4CI Output

Range/Types and Output Data Formats on page 4-11 for minimum

values.

 the number of counts entered for a channel’s ramp rate may be equal to

0 if ramping is not enabled for the channel.

Table 4.10 1769-OF4VI Output Range/Types and Output Data Formats

Output Data

Format Output

Range/Type

Total Counts in

Full Scale

Number of Counts

for Every 1% of

Ramp Rate

Real Units/Second

for Every 1% of

Ramp Rate

Proportional Counts

-10…+10V 65534 655 0.2V/s

0…5V 0.05V/s

0…10V 0.1V/s

1…5V 0.04V/s

Engineering Units

-10…+10V 21000 210 0.2V/s

0…5V 5750 58 0.05V/s

0…10V 11000 110 0.1V/s

1…5V 4750 48 0.04V/s

Scaled for PID

-10…+10V 16383 164 0.2V/s

0…5V 0.05V/s

0…10V 0.1V/s

1…5V 0.04V/s

Percent of Full Scale

-10…+10V 10000 100 0.2V/s

0…5V 0.05V/s

0…10V 0.1V/s

1…5V 0.04V/s

1 2 ... 59 60 61 62 63 64 65 66 67 68 69 ... 127 128

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Rockwell-automation 1769-OF4VI Compact I/O Isolated Analog Modules User Manual Page 64

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