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SPECIFICATIONS
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Fig 6.2 Model 100xx Network Device Connector  Layout.

Model 100xx Connector

I/O Terminals

Specifications1

Ch 25 Digital I/O

This is a digital I/O port consisting of 8 individual lines, each of which can be configured as either a digital input channel or a digital output channel.  When configured as an input, a channel can be used to sense a digital high (3.2V to 10Volts) or digital low (0 to 1Volts).  When configured as an output a channel can be set high (2.0V min) or low (.5V max).  The inputs are protected against high voltages up to and +12Volts and down to -12V.

Digital I/O

Digital Input/Output        8 non-latching input bits and

                                    8 latching output bits at 8 bidirectional screw terminals

Input Levels                   VIH = 3.2V min ... 12V max

                                    VIL = 1.0V max ... -12V min

                                    IIH = -200µA, Vi = 3.2V

                                    IIL = -.5mA max.

Output Levels                 VOH = 2V min ... 5V max

                                    IOH = -.5mA max.

                                    IOL = 500mA max, VO=1.7V

                                    IOL = 50mA max, VO = .7V

Table 6.2 Model 100, 100B, and 100HC Technical Specifications.

Model 100xx Connector

I/O Terminals

Specifications1

Ch 1...24 Vin+/Vin-

These are voltage input ports that can be wired for any of the sensors described in Chapter 5 Sensor Reference.  When wiring single-ended inputs the Vin+ and Vin- terminals function identically.

Analog Inputs

A/D Conversion Time          4µs min

A/D Resolution                   14-bit

Voltage Input Range             +- 5V

+-.6V

+- 78mV max, +- 80mV typ

+- 8mV max, +- 10mV typ

Amplifier Gain                    1, 8, 64, 512

Number of Channels             16se/8di

System Throughput             166Ksamples/second max

Measurement Accuracy

Voltage     Integration   ChannelVoltage

Range       (seconds)      SwitchingAccuracy

±5V              1ms                 (either)±.75mV

                    0sec                 Accurate±1.5mV

                    0sec                 Fast±2.5mV

                   

±0.6V           1ms                 (either)±75µV

                    0sec                 Accurate±150µV

                    0sec                 Fast±225µV

±80mV         1ms                 (either)±15µV

                    0sec                 Accurate±45µV

                    0sec                 Fast±60µV

                   

±10mV         1ms                 (either)±10µV

                    0sec                 Accurate±30uV

                    0sec                 Fast±50µV

Signal To Noise Ratio          78dB

Differential Linearity            +- 1.5 LSB

Integral Linearity                 +- 2 LSB

Input Over voltage Protection    +- 15 V (power on or off)

Input Impedance                   10M???? ±1%, 3pf

Common Mode Voltage (CMV)      +- 5V min.

Common Mode Rejection (CMR)    +- 80dB

Temperature Drift                 Gain: +- 5ppm/??qC of FSR

                                        Offset: Self-cal'ed to 0

Time Stability                     Gain: 27ppm/1yr typ

                                        Offset: Self-cal'ed to 0

Ch 1...24 Vout

These are voltage output ports that can be used for purposes such as stimuli and sensor excitation.

Analog Outputs

D/A Resolution                   8-bit

Number of Channels             8

Output Voltage Range      #100/100B: ±5V, 4mA, .001uF

                                    #100HC: ±5V, 15mA, .01uF

Output Protection                Short-to-ground continuous

Output Settling Time           4µs (to +-1/2 LSB,+-5V step)

Analog Output Accuracy       +-0.4%

Digital Coupling                 +-20mV

Gain Drift                           +- 10ppm/??qC of 5V FSR

Offset Drift                         +- 5µV/??qC

Table 6.2 Model 100, 100B, and 100HC Technical Specifications

Model 100xx Connector

I/O Terminals

Specifications1

+5V, +12V, -12V

These screw terminals can be used to power external devices.  The maximum allowed current specified in the table to the right should not be exceeded, else the controller and/or the computer could be damaged.  To power an external device, run a wire from a voltage output terminal (e.g. "+5V) to the device and also run a wire from one of the ground terminals (i.e. "GND") to the device ground.

+5V                                  100 mA max.

+12V                                 30 mA max.

-12V                                  30 mA max.

Network Interface

The Model 100 cables to a Controller and/or other Network Devices via DB-25 cables.

Network Utilization:        Occupies 1 physical address in instruNet Network

Compatibility:                All instruNet Controllers and Network Devices

Network Connector:         DB-25 male connector (input), DB-25 female connector (out)

Physical/Environmental

All I/O signals cable to the Model 100 via screw terminals.

I/O Connector:                Screw Terminals

Dimensions:                   1.8" x 4.2" x 9"

Operating Temperature      0 to 70??qC

Storage Temperature         -25 to +85??qC

Relative Humidity:          Up to 90% (non-condensing)

Power

Power consumed by the Model 100 Network Device without additional Network Devices attached, without a terminator, and without outputs loaded.  Total system power consumption is the sum of the power consumed by the Controller and each attached Network Device.

Power Consumption:       +5V @ 180mA max

                                    +12V @ 80mA max

                                    -12V @ 80mA max

Table 6.2 Model 100, 100B, and 100HC Technical Specifications.

1Measurement Accuracy

0-70°C, no condensation, #iNet-100xx Rev 3, temperature has not changed since self-calibration, Accuracies are typical within 2 standard deviations.  Accuracy is effected by the Channel Switching field (i.e. set in the Setup dialog to Accurate or Fast) and the integration time.  If the Channel Switching field is set to Accurate, the signal is given more time to settle after the channel multiplexor is switched.  Accurate switching has a lower maximum sample rate than Fast switching.

Integration time is independently programmable for each channel, and reduces noise by averaging many samples.  Also, if more than 125 samples are averaged, a dithering noise generator automatically turns on to add noise to the input signal.  This increases the accuracy further by using more a/d codes to establish the input volt.

 

 
 

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