Rockwell Automation 1794-IB16D, 1794-OB16D User Manual

Installation Instructions

FLEX I/O Digital Input and Output Modules w/Diagnostics

1794-IB16D and 1794-OB16D

Important User Information

Solid state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls (Publication SGI-1.1 available from your local Rockwell Automation sales office or online at http://www.ab.com/manuals/gi) describes some important differences between solid state equipment and hard-wired electromechanical devices. Because of this difference, and also because of the wide variety of uses for solid state equipment, all persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is acceptable.

In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment.

The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or liability for actual use based on the examples and diagrams.

No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or software described in this manual.

Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation, Inc. is prohibited.

Throughout this manual we use notes to make you aware of safety considerations.

WARNING

IMPORTANT

ATTENTION

Identifies information about practices or circumstances that can cause an explosion in a hazardous environment, which may lead to personal injury or death, property damage, or economic loss.

Identifies information that is critical for successful application and understanding of the product.

Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss. Attentions help you:

• identify a hazard

• avoid a hazard

• recognize the consequence

WARNING

ATTENTION

When you insert or remove the module while backplane power is on, an electrical arc can occur. This could cause an explosion in hazardous location installations. Be sure that power is removed or the area is nonhazardous before proceeding.

FLEX I/O is grounded through the DIN rail to chassis ground. Use zinc plated yellow-chromate steel DIN rail to assure proper grounding. The use of other DIN rail materials (e.g. aluminum, plastic, etc.) that can corrode, oxidize, or are poor conductors, can result in improper or intermittent grounding.

North American Hazardous Location Approval

The following modules are North American Hazardous Location approved: 1794-IB16D and 1794-OB16D.

The following information applies when operating this equipment in hazardous locations:

Products marked “CL I, DIV 2, GP A, B, C, D” are suitable for use in Class I Division 2 Groups A, B, C, D , Hazardous Locations and nonhazardous locations only. Each product is supplied with markings on th e rating nameplate in dicating the hazardou s location temp erature code. When com bining products within a system, the most adverse temperature code (lowest “T” number) may be used to help determine the overall temperature co de of the system. Combinations of equi pment in your system ar e subject to investigatio n by the local Authority Having Jurisdiction at the time of installation.

WARNING

EXPLOSION HAZARD

• Do not discon nect equipment unless power has been removed or the area is kno wn to be nonhazardous.

• Do not discon nect connections to this equipmen t unless power ha s been removed or the area is known to be nonhazardous. Secure any external co nnections that ma te to this equipmen t by using screws, sliding latches, th readed connectors, o r other means provided with this product.

• Substitution of components may impair suitability for Class I, Division

• If this produc t contains batteries, they must only be changed in an area known to be nonhazardous.

Informations sur l’utilisation de cet équipement en environnements dangereux :

Les produits marqués "CL I, DIV 2, GP A, B, C, D" ne conviennent qu’à une utilisation e n environnements de Classe I Division 2 Grou pes A, B, C, D dangere ux et non dangereux. Chaque produit est livré avec des marquages sur sa plaque d’identification qui indiquent le code de température pour les environnements dangereux. Lorsque plusieurs produits sont combinés dans un sys tème, le code de température le plus défavorable (c ode de température le p lus faible) peut être utilisé pour dé terminer le code de te mpérature global du système. Les c ombinaisons d’équipem ents dans le système sont sujettes à in spection par les autorités lo cales qualifiées au moment de l’ installation.

AVERTISSEMENT

RISQUE D’EXPLOSION

• Couper le courant ou s’assurer que l’environnemen t est classé non dangereux avant de dé brancher l'équipement.

• Couper le courant ou s'assurer que l’environnemen t est classé non dangereux avant de dé brancher les connecteurs. Fixer tous les connecteurs exter nes reliés à cet équipement à l'aide de vis, loquets coulissants, conn ecteurs filetés ou autres moyens fournis avec ce pro duit.

• La substitution de composants peut rendre cet équ ipement inadapté à une utilisation en env ironnement de Cl asse I, Division 2.

• S’assurer que l’environnement est classé non dan gereux avant de changer les pile s.

ATTENTION

Environment and Enclosure

This equipment is intended for use in a Pollution Degree 2 industrial environment, in overvoltage Category II applications (as defined in IEC publication 60664-1), at altitudes up to 2000 meters without derating.

This equipment is considered Group 1, Class A industrial equipment according to IEC/CISPR Publication 11. Without appropriate precautions, there may be potential difficulties ensuring electromagnetic compatibility in other environments due to conducted as well as radiated disturbance.

This equipment is supplied as "open type" equipment. It must be mounted within an enclosure that is suitably designed for those specific environmental conditions that will be present and appropriately designed to prevent personal injury resulting from accessibility to live parts. The interior of the enclosure must be accessible only by the use of a tool. Subsequent sections of this publication may contain additional information regarding specific enclosure type ratings that are required to comply with certain product safety certifications.

See NEMA Standards publication 250 and IEC publication 60529, as applicable, for explanations of the degrees of protection provided by different types of enclosure. Also, see the appropriate sections in this publication, as well as the Allen-Bradley publication 1770-4.1 ("Industrial Automation Wiring and Grounding Guidelines"), for additional installation requirements pertaining to this equipment.

ATTENTION

Preventing Electrostatic Discharge

This equipment is sensitive to electrostatic discharge, which can cause internal damage and affect normal operation. Follow these guidelines when you handle this equipment:

• Touch a grounded object to discharge potential static.

• Wear an approved grounding wriststrap.

• Do not touch connectors or pins on component

boards.

• Do not touch circuit components inside the

equipment.

• If available, use a static-safe workstation.

FLEX I/O is a trademark of Rockwell Automation, Inc. Publication 1794-IN096B-EN-P - February 2004

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Installing Your Digital Input or Output Module

ATTENTION

During mounting of all devices, be sure that all debris (metal chips, wire strands, etc.) is kept from falling into the module. Debris that falls into the module could cause damage on power up.

The input module mounts on a 1794-TB32 or -TB32S terminal base. The output module mounts on a 1794-TB2, -TB3 or -TB3S terminal base.

1. Rotate the keyswitch (1) on the terminal base (2) clockwise to position 2 as required for this type of module.

2. Make certain the flexbus connector (3) is pushed all the way to the left to connect with the neighboring termbase/adapter. You cannot install the module unless the connector is fully extended.

3. Make sure the pins on the bottom of the module are straight so they will align properly with the connector in the terminal base.

4. Position the module (4) with its alignment bar (5) aligned with the groove (6) on the terminal base.

5. Press firmly and evenly to seat the module in the terminal base unit. The module is seated when the latching mechanism (7) is locked into the module.

Connecting Wiring for the 1794-IB16D (using 1794-TB32 or -TB32S terminal base)

1. Connect individual input wiring (IN00-IN15) to terminals 0 thru 15 on the 0-15 row (A) as indicated in the table below.

2. Connect individual Sensor Power wiring (sensor power 0 thru 15) to terminals 17 thru 32 on the 16-33 row (B) as indicated in the table below. Do not connect to terminals 16 or 33.

3. Connect the associated +V2 dc power lead of the input device to the corresponding terminal on the 34-51 row (C) for each input as indicated in the table below. (The +V2 power terminals of row (C) are internally connected together.)

4. Connect the associated input common (3-wire devices only) to the corresponding terminal on the 34-51 row. (C) for each input as indicated in the table below. (Commons are internally connected together.)

5. Connect +V dc power to pin 43 (+V) on the 34-51 row (C).

6. Connect -V dc common to pin 44 (COM2) on the 34-51 row (C).

7. If daisychaining input wiring power to the next terminal base, connect

a jumper from terminal 49 (+V dc) on this base unit to the power terminal on the next base unit (refer to the installation instructions for the next terminal base unit).

8. If continuing input wiring common to the next base unit, connect a jumper from terminal 50 (common) on this base unit to the common

terminal on the next base unit (refer to the installation instructions for the next terminal base unit).

1794-TB32 and -TB32S Terminal Base Wiring for the 1794-IB16D

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33

NC NC

35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

+V1 COM1 +V1 COM1 +V1 COM1 +V1 COM1 +V2 COM2 +V2 COM2 +V2 COM2 +V2 COM2 NC

V2 = Terminals 43, 45, 47 and 49 -

Voltage applied to Inputs 0-15 and Sensor power 0-15

OM1, COM2 = Terminals 36, 38, 40, 42, 44, 46, 48 and 50 -

Common for inputs 0 thru 15 and sensor power 0 thru 15

C = No connections (terminals 16, 33, 34 and 51) V1 = Terminals 35, 37, 39 and 41 (not used)

Input Terminals 0-15

Sensor Power Terminals 0-15

(1794-TB32 shown)

Wiring for 1794-IB16D (use with 1794-TB32 or -TB32S terminal base units)

Input Input

Terminal

IN 00 A-0 B-17 -V common IN 01 A-1 B-18 IN 02 A-2 B-19 IN 03 A-3 B-20 IN 04 A-4 B-21 IN 05 A-5 B-22 IN 06 A-6 B-23 IN 07 A-7 B-24 IN 08 A-8 B-25 IN 09 A-9 B-26 IN 10 A-10 B-27 IN 11 A-11 B-28 IN 12 A-12 B-29 IN 13 A-13 B-30 IN 14 A-14 B-31 IN 15 A-15 B-32 +V2 dc

power COM dc

Return

use input, sensor power and common terminals.

Power terminals 43, 45, 47 and 49 (power terminals are internally connected together in the module)

Common terminals 36, 38, 40, 42, 44, 46, 48 and 50 (common terminals are internally connected together in the module)

3-wire devices only. 2-wire devices use input and sensor power terminals; 3-wire devices

Sensor Power Ter m in al

Common

connected to terminals 36, 38, 40, 42, 44, 46, 48 and 50

Supply

+V2 connected to terminals 43, 45, 47 and 49

Connecting Wiring for the 1794-OB16D (using 1794-TB2, -TB3 or

-TB3S terminal base)

1. Connect individual output wiring to numbered terminals on the 0-15 row (A) as indicated in the table below.

2. Connect the associated common for each output to the corresponding terminal on the 16-33 row (B) as indicated in the table below. (The common terminals of row (B) are internally connected together.)

3. Connect +V dc power to terminal 34 on the 34-51 row (C). (The power terminals of row (C) are internally connected together.)

4. Connect dc common (COM) to terminal 16 on the 16-33 row (B).

5. If daisychaining power to the next terminal base, connect a jumper

from terminal 51 (+V dc) on this base unit to terminal 34 on the next base unit.

Publication 1794-IN096B-EN-P - February 2004

6. If continuing dc common to the next base unit, connect a jumper from terminal 33 (common) on this base unit to terminal 16 on the next base unit

1794-TB2, -TB3, and -TB3S Terminal Base Wiring for the 1794-OB16D

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33

-V

Common

35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

Voltage In +V

-V (Supply Common) = Terminals B-16 thru B-33 +V (Supply +Voltage In) = Terminals C-34 thru C-51 (Use B-33 and C-51 for daisy-chaining to next terminal base unit)

Terminals 35 thru 50 not available on 1794-TB2

Outputs

Commons

Voltage

-V

Common

Voltage Out +V

(1794-TB3 show

Wiring Connections for the 1794-OB16D (use with 1794-TB2,

-TB3 or -TB3S terminal base units)

Outputs Output Terminal Common Terminal

Output 00 A-0 B-17 Output 01 A-1 B-18 Output 02 A-2 B-19 Output 03 A-3 B-20 Output 04 A-4 B-21 Output 05 A-5 B-22 Output 06 A-6 B-23 Output 07 A-7 B-24 Output 08 A-8 B-25 Output 09 A-9 B-26 Output 10 A-10 B-27 Output 11 A-11 B-28 Output 12 A-12 B-29 Output 13 A-13 B-30 Output 14 A-14 B-31 Output 15 A-15 B-32 +V dc C-34 and C-51 (1794-TB2) (Power Terminals are internally connected in

Common B-16 thru B-33 (Common terminals are internally connected in the

the terminal base unit. C-34 thru C-51 (1794-TB3, -TB3S) (Power terminals are internally connected in the terminal base unit.

terminal base unit.

Diagnostics

(See configuration information below for location of diagnostic bits.) Note: Each unused sensor port requires a dummy resistor to mask the channel diagnostic function.

Diagnostic Functions for the 1794-IB16D)

Ext.

Wiring Input

Power

OFF Open Off Off 0 0 0 0/OFF

Short Off Off 0 0 0 0/OFF

Normal Off Off 0 0 0 0/OFF

ON Open Off RED 1 0 0 1/RED

Short Off RED 0 1 0 1/RED

Normal Off Off 0 0 0 0/OFF

REV Open Off Off 0 0 1 1/RED

Short Off Off 0 0 1 1/RED

Normal Off Off 0 0 1 1/RED

The module monitors each sen sor-power port for current and voltage. It turns on the ch annel red LED and sets (1) the error bit when 1) the module d etects a short circuit (no voltage at the sensor-port), and 2) the modu le detects an open wire ( no c urrent at the sensor-port).

Diagnostic Functions for the 1794-OB16D Note: Each unused output port requires a dummy resistor to mask

the channel diagnostic function.

Ext.

Power

The module monitors each output channel. It turns on the channel red LED and sets (1) the error bit when 1) the module detects a short ci rcuit (the output signal is active at a channel and the correspond ing output voltage is low), and 2) the modul e detects an open wire (the output signal is inactive at a channe l and the corresponding output voltage is high).

Wiring Output

OFF Open Off Off 0 0 0 0/OFF

Short Off Off 0 0 0 0/OFF

Normal Off Off 0 0 0 0/OFF

ON Open Off RED 1 0 0 1/RED

Short Off Off 0 0 0 0/OFF

Normal Off Off 0 0 0 0/OFF

REV Ope n Off Off 0 0 1 1/ RED

Short Off Off 0 0 1 1/RED

Normal Off Off 0 0 1 1/RED

Channel

Status

On Off 0 0 0 0/OFF

On RED/YEL 1 0 0 1/RED

On RED/YEL 0 1 0 1/RED

On YEL 0 0 0 0/OFF

On Off 0 0 1 1/RED

Status

LED

Status

Channel

Status

On Off 0 0 0 0/OFF

On YEL 0 0 0 0/OFF

On RED 0 1 0 1/RED

On YEL 0 0 0 0/OFF

On Off 0 0 1 1/RED

LED

Open Wire

Error Bit

Open

Wire Error

Bit

Short Error

Bit

Short Error

Bit

Rev.

Error

Bit

Rev.

Error

Bit

Module

Error

Bit/LED

Module

Error

Bit/LED

Publication 1794-IN096B-EN-P - February 2004

Sensor Diagram for the 1794-IB16D

External

3-Wire

3-Wire Sensor

Sensor

3-Wire

3-Wire Sensor

Sensor

3-Wire

3-Wire Sensor

Sensor

External

Power

Power Supply

Supply

External

Power

Supply

+ _

Unused input port Dummy resistor needed or Fault LED remains lighted.

1794-IB16D

Sensor-power lines -

Sensor-power lines Detect open wire

Detect open wire Detect short circuit

Detect short circuit

1794-IB16D

Dummy

Dummy Resistor

Resistor

20kΩ, ≥1/8W

2-Wire

Sensor

2-Wire

2-Wire Sensor

Sensor

Shunt

Shunt Resistor

Resistor

20kΩ, ≥1/8W

Shunt

Shunt Resistor

Resistor

20kΩ, ≥1/8W

External

Power

Power Supply

Supply

External

Power

Power Supply

Supply

+ _

1794-IB16D

Sensor-power lines -

Sensor-power lines Detect open wire

Detect open wire

1794-IB16D

Sensor Diagram for the 1794-OB16D

External

Power Supply

Load

Unused input port Dummy resistor needed or Fault LED remains lighted.

1794-OB16D

Dummy Resistor

Configuration

Configuring Your 1794-IB16D Input Module

Configure your input module by setting bits in the configuration word (word 3). This module is compatible with the Remote I/O network (with 1794-ASB series E or later), DeviceNet network, and the ControlNet network. (Note: You must use the Module Connection when used in a ControlNet system.)

Dec. 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Oct. 17 16 15 14 13 12 11 10 7 6 5 4 3 2 1 0

Read 1 I 15I14I13I12I11I10I9I8I7I6I5I4I3I2I1I

Read 2 Read Diagnosti cs Status

Write 3 Not used Input Filter FT

Where I = Inp ut FT = Input filter time Diagnostic st atus; Bit 00 = module error; Bit 01 = external power reverse polarity error; Bit 02 = sensor power short error; Bit 03 = sens or power open wire error

0-15

Not used

Setting the Input Filter Time

To set the input filter time, set the associated bits in the output image (complementary word) for the module.

#O:010

Dec.

Write FT to complement of input module.

= 5 Octal or 5 Decimal

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

O:010

1794-IB16D

Write filter time on system startup.

I:000

FT = 0-15

1794-IB16D

FLL

Fill File Source Destination Length

12 11 10 9 8 7 6 5

Bits Description Filter Time

10 09 08 Filter time for inputs 0 thru 15

0 0 0 Filter time 0 (default) 0.25ms

0 0 1 Filter time 1 0.5ms

0 1 0 Filter time 2 1ms

0 1 1 Filter time 3 2ms

1 0 0 Filter time 4 4ms

1 0 1 Filter time 5 8ms

1 1 0 Filter time 6 16ms

1 1 1 Filter time 7 32ms

Off to On/ On to Off

Configuring Your 1794-OB16D Output Module

Configure your output module by setting bits in the configuration word (word 3). This module is compatibility with the Remote I/O network (with 1794-ASB series D or later), DeviceNet network, and the ControlNet network. (Note: You can use the Module Connection or Rack Connection when used in a ControlNet system.)

Dec. 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Oct. 17 16 15 14 13 12 11 10 7 6 5 4 3 2 1 0

Read 1 Not used Read Diagnosti cs Status

Write 2 O15O14O13O12O11O10O9O8O7O6O5O4O 30 2O 1O

Where O = Ou tput Diagnostic st atus; Bit 00 = module error; Bit 01 = external power reverse polarity error; Bit 02 = out put short error; Bit 03 = output open wire error

Specifications

Specifications - 16 Input Module w/Diagnostics, 1794-IB16D

Meets IEC 3 24V dc input specification s

Number of Inputs 16 (1 group of 16), group isola tion

Module Location Cat. No. 1794-TB32, -TB32S

On-state Voltage 10V dc minimum

On-state Current 2 .0mA minimum at 10V dc

Off-state Voltage 5.0V dc maximum

Off-state Current 1.5mA minimum

Input Impedance 3.1K ohms

Indicators (field side indication, customer device driven)

Input Filter Time Off to On On to Off

Isolation Voltage Tested at 2121V dc for 1s b etween user and system

Power Dissipation 8.5W maximum @ 31.2V dc

Thermal Dissipation Maximum 29 BTU/hr @ 31.2V dc

Sensor

Power Voltage Drop Power Current Power Line

Short Detect Circuit Open Wire Detect

Detect Reverse Polarity Volt age

Flexbus Current 30mA

24V dcnominal

31.2V dc maximum

8.2mA nominal at 24V dc

12.1mA maximum at 31.2V dc (See Derating Curve)

16 yellow ON/OFF status indicators (field side) 16 red diagnostic status in dicators (each channel, field side) 1 red module fault indicator (field side)

0.25ms, 0.5ms, 1ms, 2ms , 4ms, 8ms, 16ms, 32ms

0.25ms default - Selectable us ing configuration word 3

No isolation between individua l channels

2.2V dc maximum 50mA maximum

1.0A minimum (in 10s) 50µA maximum

Minimum 10V: Module must detect if the r everse polarity external power supply voltage is greater than the value.

Publication 1794-IN096B-EN-P - February 2004

Specifications - 16 Output Module w/Diagnostics 1794-OB16D

Meets IEC 0.5A 24V dc Output Specificatio ns

Number of Outputs 16 (1 g roup of 16), group isolat ion

Module Location Cat. No. 1794-TB2, -TB3, -TB3S

Output Voltage 10V dc minimum

On-state Current 2.0mA minimum per output

Output Current Rating 8.0A (16 outputs @ 0.5A)

Surge Current 2A for 50ms, repeatable every 2s

Off-state Voltage 31.2V dc maximu m

Off-state Leakage 0.5mA maximum

On-state Voltage Drop 0.5V dc at 0.5A

Isolation Voltage Tested at 2121V dc for 1s bet ween user and system

Indicators (field side indication, customer device driven)

Flexbus Current 60mA

Power Dissipation 4.8W maximum @ 31.2V dc

Thermal Dissipation Maximum 16. 4 BTU/hr @ 31.2V dc

Short Circuit Protect and Detection

Open Wire Detect off-state leakage current

Detect Reverse Polarity Volt age

24V dc nominal

31.2V dc maximum

0.5A per output, 8A per module maximum

No isolation between individual ch annels

16 yellow on/off status indicators (field side) 16 red diagnostic status indic ators (each channel, field side) 1 red module fault indicator (field side )

Thermal shutdown (auto reset) Detection condition: when exter nal power active, output signal active, and output port voltage les s than 2V.

0.1mA - When external power activ e and output signal inactive.

10V minimum: Module must detect if t he reverse polarity external power supply voltage is greater th an the value.

General Specifications

Module Keying Position 2

Terminal Base Screw Torque

Dimensions (with module installed)

External dc power Supply voltage Voltage range

Environmental Conditions

Operating Temperature IEC 60068-2-1 (Test Ad, Operating Cold),

Storage Temperature IEC 60068-2-1 (Test Ab, Un-packaged Non-operating Cold),

Relative Humidity IEC 60068-2-30 (Test Db, Un-packaged Non- operating

Vibration IEC60068-2-6 (Test Fc, Operating):

Shock IEC60068-2-27 (Test Ea, Unpackaged shock)

Emissions CISPR 11:

ESD Immunity IEC 61000-4-2:

Radiated RF Immunity IEC 61000-4-3:

7 pound-inches (0.8Nm)

1.8H x 3.7W x 2.1D inches

45.7H x 94.0W x 53.3D mm

24V dc nominal

10.0 to 31.2V dc (includes 5% ac ri pple)

IEC 60068-2-2 (Test Bd, Operating Dry Heat), IEC 60068-2-14 (Test Nb, Operating Thermal Shock): 0 to 55°C (32 to 131°F)

IEC 60068-2-2 (Test Bb, Un-packaged Non-operating Dry Heat ), IEC 60068-2-14 (Test Na, Un-packaged Non-operating Therma l Shock): –40 to 85°C (–40 to 185°F)

Damp Heat): 5 to 95% non-condensing

5g @ 10-500Hz

Operating 30g Non-operating 50g

Group 1, Class A (with appropriate enclosure)

6kV contact discharges 8kV air discharges

10V/m with 1kHz sine-wave 80%AM from 80MHz to 2000MHz 10V/m with 200Hz 50% Pulse 100%AM at 900Mhz 10V/m with 200Hz 50% Pulse 100%AM at 1890Mhz

EFT/B Immunity IEC 61000-4-4:

Surge Transient Immunity

Conducted RF Immunity IEC 61000-4-6:

Enclosure Type Rating None (open-style)

Conductors Wire Size

Rockwell Automation 1794-IB16D, 1794-OB16D User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual