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B&B Electronics I-7018 - Datasheet User Manual

Channel isolated analog input module, Specifications, Feature/benefits

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I-7018 / I-7018P - 5003 1/2

International Headquarters:

707 Dayton Road P.O. Box 1040 Ottawa, IL 61350 USA

815-433-5100 Fax 433-5104 www.bb-elec.com [email protected] [email protected]


Westlink Commercial Park Oranmore Co. Galway Ireland

+353 91 792444 Fax +353 91 792445 www.bb-europe.com [email protected] [email protected]

Integrate – Expand – Simplify

B&B ELECTRONICS

PRODUCT INFORMATION

Models: I-7018, I-7018P

8-channel Isolated Analog Input Module



I-7000 is a family of network data acquisition and control modules providing analog to digital, digital to
analog, digital input/output, timer/counter and other functions. The modules can be remotely controlled by a
set of commands.

The I-7018 is an 8-channel analog input module. The I-7018P supports more thermocouple types and
enhances the measurement range of some types.

Specifications

Analog Input

ƒ

Photo-isolation: 3750 Vrms

ƒ

Type: mV, V , mA (with external 125 ohms resistor)

ƒ

Thermocouple: Type J, K, T, E, R, S, B, N, C (for I-7018)

Type J, K, T, E, R, S, B, N, C, L, M (for I-7018P)

ƒ

Channels: 8 differential or 6 differential and

2 single-ended by jumper select

ƒ

Voltage range: +/-15mV, +/-50mV, +/-100mV,+/- 500mV,

+/-1V,+/- 2.5V

ƒ

Current range: +/- 20mA

ƒ

Resolution: 16 bits

ƒ

Sampling rate: 10 Samples/Second

ƒ

Bandwidth: 15.7 Hz

ƒ

Input impedance: 20M Ohms

ƒ

Accuracy: ±0.1%

ƒ

Zero drift: ± 0.5uV/°C

ƒ

Span drift: 25ppm/°C

ƒ

CMR @ 50/60 Hz: 150 dB

ƒ

NMR @ 50/60 Hz: 100 dB

ƒ

Over voltage protection: 35V (P-P)

ƒ

Isolation: 3000VDC

Block Diagram

Cont r ol l er

ADC

GND

+Vs

Vi n0-

+V

- V

Vi n1+
Vi n1-
Vi n0+

Phot o- I sol at i on

Embedded

RS- 485

EEPROM

Vi n6-

Vi n6+

Vi n7-

MUX

Vi n7+

I-7018/18P

I nt er f ace

Regul at or

Power

Dat a+

Dat a-

+5V


Model I-7018

Feature/Benefits

• 3000 VDC isolated analog input

• 24-bit sigma-delta ADC to

provide excellent accuracy

• Thermocouple direct connect

with built-in CJC

• Software

calibration

• Dual

watchdog

PIN Assignments

Vin5+
Vin5-
Vin6+
Vin6-
Vin7+
INIT*/Vin7-
(Y)DATA+
(G)DATA-
(R)+Vs
(B)GND

1








10

Vin4-

Vin4+

Vin3-
Vin3+
Vin2-
Vin2+
Vin1-
Vin1+
Vin0-

Vin0+

20








11

Thermocouple type: (C)

Type

Range (C)

J

-210~ +760

K

-270~+1372

T

-270~+400

E

-270~+1000

R

0~+1768

S

0~+1768

B

0~+1820

N

-270~1300

C

0~2320

L

-200~800

(For 7018P only)

M

200~100

(For 7018P only)

L

DIN43710

-200~900

(For 7018P only)