1756-OF8 Allen-Bradley PLC 8 Channel Current/Voltage Analog Output Module (20 Pin) New

Number of Output

8 voltage or current outputs

Module Location

1756 ControlLogix Chassis

Backplane Current

150mA @ 5.1V dc & 210mA @ 24V dc (5.8W)

Power Dissipation within Module

Thermal Dissipation

4.92W - 8 channel current

16.78 BTU/hr

Output Range

0 to 21mA

+/- 10.4V

Resolution

15 bits across 21mA - 650nA/bit

15 bits across 10.4V – 320uV/bit

Data Format

Integer mode (2s complement)

Floating point IEEE 32 bit

Open Circuit Detection

Current output only (Output must be set to >0.1mA)

Output Overvoltage Protection

24V dc

Output Short Circuit Protection

Electronically current limited to 21mA or less

Drive Capability

>2000 Ohm - voltage

0-750 Ohm  - current

Output Settling Time

<2ms to 95% of final value with resistive load

Calibrated Accuracy at 25°C

Calibration Interval

Better than 0.05% of range from 4mA to 21mA, -10.4V to

10.4V

Twelve months typical

Output Offset Drift with Temperature

50 uV/degree C typical

100nA/degree C typical

Gain Drift with Temperature

25 ppm/degree C maximum - voltage

50 ppm/degree C maximum - current

Module Error over Full Temp. Range

0.15% of range - voltage

0.3% of range - current

Module Scan Time for all Channel

12ms minimum floating point

8ms minimum integer

Isolation Voltage

User to system

100% tested at 2550V dc for 1s

Module Conversion Method

R-Ladder DAC monotonicity with no missing codes

Module Keying (Backplane)

Electronic

RTB Screw Torque (NEMA)

7-9 inch-pounds (0.8-1Nm)

RTB Keying

User defined

RTB and Housing

20 Position RTB (1756-TBNH or TBSH)

Environmental Conditions

Operating Temperature

Storage Temperature

Relative Humidity

0 to 60°C (32 to 140°F)

-40 to 85°C (-40 to 185°F)

5 to 95% noncondensing

Cat. No.

Inputs/Outputs

Range

Resolution

Removable Terminal Block

1756-OF4

4 voltage or current outputs

±10.4V
0…21 mA

Voltage:
15 bits across 10.5V, 320 mV/bit
Current:
15 bits across 21mA, 650 nA/bit

1756-TBNH
1756-TBSH

1756-OF6CI

6 individually isolated current outputs

0…21 mA

13 bits across 21mA (2.7 mA)

1756-TBNH
1756-TBSH

1756-OF6VI

6 individually isolated voltage outputs

± 10.5V

14 bits across 21V (1.3 mV)
(13 bits across 10.5V +sign bit)

1756-TBNH
1756-TBSH

1756-OF8

8 voltage or current outputs

±10.4V
0…21 mA

15 bits across 21 mA - 650 nA/bit
15 bits across 10.4V - 320 mV/bit

1756-TBNH
1756-TBSH

1756-OF8H

8 voltage or current outputs, HART interface

±10.4V
0…20 mA
4…20 mA

15...16 bits

1756-TBNH
1756-TBSH