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Rockwell Automation 1746-NO8V SLC 500 8-Point Analog Output Module/ User Manual User Manual

Page 62

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Publication 1746-UM026A-EN-P - September 2003

A-2 Specifications

Table A.2 Analog Output Specifications

Specification

1746-NO8I

1746-NO8V

Number of Outputs

8

8

Output Type

Current

Voltage

Output Range

0 to 21.5 mA

±10.25V dc

Output Coding (proportional scaling)

0 to 32,767

-32,768 to +32,767

Output D/A Converter Resolution

16-bit

366 nA/count

16-bit

320 µV/count

Location of LSB in I/O Image Word

0000 0000 0000 0001
(for 1746-NO4 compatible data format; does not apply to other data formats)

Non-Linearity

0.06% of full scale

DAC Conversion Method

R-2R Ladder Network

Output Step Response Time

1 ms (0 to 95% of full scale)

Channel Update Time (typical)

Class 1: 5 ms to update all 8 channels

Class 3: 10 ms to update all 8 channels

Load Range

0 to 500 ohm

1K ohm and greater

Load Current

n/a

10 mA (maximum)

Load Reactance

1 µH (maximum)

1 µF (maximum)

Output Impedance

Greater than 1M ohm

Less than 1.0 ohm

Over-Range Capability

7.5% (21.5mA)

2.5% (±10.25V)

Overall Accuracy

0.1% of full scale at 25°C

0.2% of full scale at 60°C

0.1% of full scale at 25°C

0.2% of full scale at 60°C

Overall Accuracy Drift

±33 ppm/°C of full scale (maximum)

±33 ppm/°C of full scale (maximum)

Gain Error

0.08% of full scale at 25°C

0.15% of full scale at 60°C

0.08% of full scale at 25°C

0.15% of full scale at 60°C

Gain Error Drift

±25 ppm/°C of full scale (maximum)

±25 ppm/°C of full scale (maximum)

Offset Error

±12 LSB at 25°C (typical)

±29 LSB at 60°C (typical)

±13 LSB at 25°C (typical)

±32 LSB at 60°C (typical)

Offset Error Drift

±0.48 LSB/°C (maximum)

±0.53 LSB/°C (maximum)

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