Analog Inputs/Module

I/O mapped as B875-111

Eight differential

I/O mapped as B877-111

16 Single-ended

Input Ranges

Voltage

1—5 Vdc

0—5 Vdc

0—10 V

-5—+5 V

-10—+10 V

Current

4—20 mA

0—20 mA

-20—+20 mA

Input Analog Filter

Single pole low pass, with -3 dB cut-off frequency at 48 Hz 10%

Input Resistance

Current Mode

250 Ω, 0.05%

Voltage Mode

Within range > 10 MW, outside range 10,000 Ω

Input Resistance (No power)

Differential Inputs

20kΩ /channel

Single-ended Inputs

10 kΩ/channel

Input Protection

Normal Mode

120 V RMS differential input

Common Mode

120 V RMS

Throughput (T)

eight channels

10 ms without input sampling

16 channels

20 ms without input sampling

Over Current Protection

Up to 30 mA

Common Mode Range

2 V for 10 V, 7 V for 5 V

Rejection

-40 dB typical, dc to 60 Hz

Input Isolation

Input to OURBUS

1500 Vac RMS for 1 minute

Input to Case

1500 Vac RMS for 1 minute

Input to Input

25 Vac

Accuracy

0.1% absolute accuracy over temperature range

Conversion Resolution

All ranges

>12 bits

Bipolar

1 part in 15,000

Unipolar

1 part in 7,500

Unipolar with offset

1 part in 6,000

Linearity Error

0.05% of full scale over the operating range

Differential

Nonlinearity

0.006% of full scale over the operating range

Repeatability

0.025% of full scale RMS, constant temperature, no averaging

Output Range

Four selectable output formats

Output Averaging

Options are: N = 8, 16, and 32 samples to be averaged

Output Digital Filter, Fc

Single pole low pass with cut-off frequency dependent upon the number of averaged samples, N and T

Out-of-range Data

2.4% above and below range

Power Required

+5 V

500 mA

+4.3 V

900 mA

-5 V

0 mA

Terminal Connector

AS–8535–000

Reference Type

B875-111 Mapped as 8 registers input 3x

Input Type

BIN/BCD