Allen-Bradley 1734-8CFG Manuale utente

5Publication 1734-SG001F-EN-P - September 2015

Chapter

POINT I/O Family

Overview

The POINT I/O family has modular I/O modules that are ideal for

applications where flexibility and low-cost of ownership are key for successful

control system design and operation. As a key element in the Rockwell

Automation Integrated Architecture, its comprehensive diagnostics and

configurable features allow the product to be easily applied to any automation

system and reduce engineering costs through standardization. It can be used in

remote device panels, local control panels, and can be accessed from many

locations including the Internet. This product has just-what-you-need

granularity in 1 to 8 points to reduce system cost and size.

Available features include Channel Level Diagnostics for quick

troubleshooting, multiple termination options and flexibility to save money,

cabinet space and commissioning/troubleshooting time, the ability to

mix/match Safety I/O on the same bus, and available DeviceLogix for local

control, fast response time. Self-Configuring modules are also available to

reduce/simplify your design and your inventory.

Publication 1734-SG001F-EN-P - September 2015

6POINT I/O Family

The POINT I/O System

The base (A) mounts onto the DIN rail and provides the backplane. The POINT I/O module (B) snaps into

the base. The removable terminal block (C) also snaps into the base and provides the wiring and

terminations for field-side connections, as well as system power for the backplane.

POINT I/O has 4 major components:

•I/O modules provide the field interface and system-interface circuitry

•Communication interface modules provide the network-interface

circuitry

•Terminal base units provide the wiring and signal termination for

field-side connections and system power for the backplane

•Power distribution modules provide the expandability of the POINT

I/O system and the flexibility to mix a variety of signal types

1734 POINT I/O modules offer 1 to 8 points per module. The I/O modules

are interfaced to a network through a communication interface, which includes

a built-in power supply that converts incoming 24V DC power to 5V DC

backplane power. Each type of communication interface (Network Adaptor)

supports a maximum of 13 to 17 I/O modules, with a maximum of 10 A field

power. The I/O modules receive power from the power supply through the

backplane. With an external power supply, you can expand a POINT I/O

assembly up to a maximum of 63 I/O modules or 504 channels.

45215 45216

1734-TOP or 1734-TOPS

One-piece Terminal Base with Screw or Spring Clamp

Publication 1734-SG001F-EN-P - September 2015

POINT I/O Family 7

POINT I/O Features

Adapters • ControlNet

• DeviceNet

• EtherNet I/P

• Profibus

I/O Types • Digital

• Analog

•AC/DC

• Thermocouple

•RTD

• Specialty

Module Density 1…8 points

Specialty Modules • Encoder

• 1 MHz Counter In

• Counter In with Outputs

• Serial RS232

• RS485

• RS422

• Channel Isolated Thermocouple

•RTD

• Serial Synchronous Interface (SSI)

• Address Reserve

• 4 Channel IO-Link Master

Module Features • Channel-level diagnostics (LED indicator and electronic)

• Channel-level alarm and annunciation (electronic)

• Channel-level open-wire detection with electronic feedback

• Channel-level short-circuit detection with electronic feedback

• Parameter-level explicit messaging

• Removal and insertion under power (RIUP)

• Horizontal or vertical mounting without derating

• Automatic Device Replacement

• Add-On-Profiles in RSLogix 5000

Network

Connectivity • DeviceNet (including SubNet connectivity)

• ControlNet (Logix controller only)

• EtherNet/IP (Logix controller only)

• PROFIBUS DP

• OPC/DDE Data Monitoring¨

Environmental

Style Class I, Division 2/Zone 2, Marine Certification, European ATEX Zone

2 3G

Modules per Node,

max Up to 63

Publication 1734-SG001F-EN-P - September 2015

8POINT I/O Family

Specify a POINT I/O System

Follow these steps as you specify your POINT I/O system:

Step Remember to select

1 Select a communication

interface

Choose the interface module for your

operating system.

•the appropriate interface module

•a communication interface that

meets the power requirements of

your system

2 Select I/O devices based on

field devices

•location of the device

•number of points needed

•appropriate catalog number

•number of points available per

module

•number of modules

•I/O modules – some have diagnostic

features, electronic fusing, isolated

inputs/outputs, and unique

configurable features

3 Select a wiring base assembly

Choose the appropriate wiring base

assembly

•the appropriate wiring base

assembly:

Single piece screw, single piece

spring, or RTB (Removable Terminal

Base)

4 Select optional power

components

Choose optional components to

extend backplane power or change

the field power distribution source.

•additional power components as

necessary

•adequate power capacity to meet

I/O module backplane current

requirements

5 Determine mounting

requirements

Determine needed dimensions based

on the communication interface

chosen.

•the appropriate number of DIN rails

based on the number of modules and

the physical locations of those

modules

•horizontal or vertical mounting with

no thermal derating

Publication 1734-SG001F-EN-P - September 2015

24 Select POINT I/O Modules

Digital I/O Modules Environmental Specifications

Self-Configurable Modules

1734 Digital I/O Modules Environmental Specifications

Attribute Value

Operating temperature -20…55 °C (-4…131 °F)

Nonoperating temperature -40…85 °C (-40…185 °F)

Relative humidity 5…95% noncondensing

Operating shock 30 g

Nonoperating shock 50 g

Vibration 5 g at 10…500 Hz

Enclosure type rating None (open-style)

Mounting type DIN-rail

Certifications (when product is marked) CE, C-Tick, c-UL-us

1734 DC Configurable Input/Output Modules Technical Specifications

1734-8CFG 1734-8CFGDLX (with

DeviceLogix

Number of inputs/iutputs 8 8

Voltage, on-state input, nom

Voltage, on-state input, min 11V DC

Voltage, on-state input, max

Current, on-state input, min 2.0 mA

Current, on-state input, max 5.0 mA

Input filter Each input independently settable in 1 ms intervals

(truncated to 1 ms resolution). Default value is 1000 ms.

Voltage, on-state output, nom 24V DC

Voltage, on-state output, min 10V DC

Voltage, on-state output, max 28.8V DC

POINTBus current 100 mA @ 5V DC

Power dissipation, max 2.6 W @ 28.8V DC

Thermal dissipation, max 8.9 BTU/hr @ 28.8V DC

Terminal base unit 1734-TB, 1734-TBS, 1734-TOP, or 1734-TOPS

Publication 1734-SG001F-EN-P - September 2015

Select POINT I/O Modules 25

Self-Configurable Modules Environmental Specifications

1734 DC Configurable Input/Output Modules Environmental Specifications

Attribute Value

Operating temperature -20…55 °C (-4…131 °F)

Nonoperating temperature -40…85 °C (-40…185 °F)

Relative humidity 5…95% noncondensing

Operating shock 30 g

Nonoperating shock 50 g

Vibration 5 g at 10…500 Hz

Enclosure type rating None (open-style)

Mounting type DIN-rail

Certifications (when product is marked) CE, C-Tick

63Publication 1734-SG001F-EN-P - September 2015

Chapter

Mounting Requirements

The producer/consumer model multicasts messages. This means that multiple

nodes can consume the same data at the same time from a single device.

Where you place POINT I/O modules in the control system determines how

the modules exchange data.

For a Rockwell Automation controller to control 1734 I/O, the I/O must be

on one of the following:

•the same network as the controller.

•a ControlNet network that is local to that controller.

•an EtherNet/IP network that is local to that controller.

Power Supply Distance

Rating

Place modules to the right of the power supply. Each 1734 I/O module can be

placed in any of the slots right of the power supply until the usable backplane

current of that supply has been exhausted. An adapter provides 1000 mA

current to the POINTBus backplane. The 1734-EP24DC or 1734-EPAC

Expansion power supply provides up to 1300 mA. I/O modules require from

75 mA (typical for the digital and analog I/O modules) up to 220 mA or more.

Step 5 - Select:

•appropriate number of DIN rails based on the number of modules

and the physical requirements

Power Supply Distance Rating ................................................... page 63

Mount the POINT I/O System................................................. page 64

Publication 1734-SG001F-EN-P - September 2015

64 Mounting Requirements

Use the following table to plan the maximum size layout of your POINT I/O

system.

Mount the POINT I/O

System

Mount the POINT I/O system on a DIN rail in the horizontal or vertical

orientation. Use steel, 35 x 75.5 mm DIN rails (Cat. No. 199-DR1; 46277-3;

EN 50022). The DIN rails for all POINT I/O system components must be

mounted on a common, conductive surface to ensure proper electro-magnetic

interference (EMI) performance. Secure DIN rail approximately every

200 mm (7.87 in).

Maximum Size Layout

POINTBus current No. of I/O Modules

with 24V DC

Backplane Current

(@ 75 mA each), max

No. of I/O Modules

with Expansion

Power Supplies,

max

No. of I/O Module

Connections, max

1734-PDN on

DeviceNet network 1300 mA Up to 17 Expansion power

supply not allowed Not to exceed scanner

capacity

1734-ADN(X) on

DeviceNet network 1000 mA Up to 13 63 Not to exceed scanner

capacity

1734-ACNR on

ControlNet network 1000 mA Up to 13 63 5 rack and 25 direct

1734-AENT on

EtherNet/IP network 1000 mA Up to 13 63 31 total connections

(reduced to 20 with

safety connections

present) including

5 rack/enhanced rack

1734-APB on

PROFIBUS network 1000 mA Up to 13 63 Not to exceed scanner

capacity

1734-EP24DC

Expansion Power Horizontal mounting:

1000 mA @ 5V DC for 10…19.2V

1300 mA @ 5V DC for 19.2…28.8V

Up to 17 63 Not to exceed scanner

capacity

Vertical mounting:

1000 mA @ 5V DC for 10…28.8V Up to 17 63 Not to exceed scanner

capacity

1734-EPAC

Expansion Power Horizontal mounting:

1300 mA@ 5.2V DC Up to 17 63 Not to exceed scanner

capacity

Vertical mounting:

1000 MA @ 5.2V DC Up to 17 63 Not to exceed scanner

capacity

Publication 1734-SG001F-EN-P - September 2015

Mounting Requirements 65

Approximate Mounting Dimensions

POINT I/O with 1734-PDN Mounting Dimensions

IMPORTANT

When mounting the 1734-IB8S, 1734-OB8S, and 1734-IE4S

modules, ensure that there is 2 in. of clearance space above the

POINT rail.

Allow a 25.4 mm (1.0 in)

air gap all around

133.4 mm

(5.25 in)

1734-PDN (H x W x L)

7.62 x 25.4 x 133.4 mm

(3.00 x 1.00 x 5.25 in)

1734-FDN (H x W x L)

7.62 x 25.4 x 133.4 mm

(3.00 x 1.00 x 5.25 in)

1734-TB or 1734-TBS with I/O (H x W x L)

65 x 12 x 133.4 mm

(2.56 x 0.47 x 5.25 in)

Publication 1734-SG001F-EN-P - September 2015

66 Mounting Requirements

POINT I/O with 1734-ADN(X), 1734-ACNR, 1734-AENT, 1734-APB Mounting

Dimensions

133.4 mm

(5.25 in)

1734-ADN (H x W x L)

7.62 x 54.9 x 133.4 mm

(3.00 x 2.16 x 5.25 in)

Allow a 25.4 mm (1.0 in)

air gap all around

1734-EP24DC or 1734-FPD (H x W x L)

7.62 x 25.4 x 133.4 mm

(3.00 x 1.00 x 5.25 in)

1734-TB or 1734-TBS with I/O (H x W x L)

65 x 12 x 133.4 mm

(2.56 x 0.47 x 5.25 in)

IMPORTANT

When mounting the 1734-IB8S, 1734-OB8S, and 1734-IE4S

modules, ensure that there is 2 in. of clearance space above the

POINT rail.

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