PLX51-HART-4I

4 Channel HART Input Module

PLX51-HART-4I

The PLX51-HART-4I allows users to easily connect their existing HART-compatible field devices to EtherNet/IP™, Modbus® TCP/IP, and DNP3 Ethernet networks. The module can be used to connect HART Input devices such as process instruments into an Ethernet network. 

The PLX51-HART-4I supports up to 4 channels of HART communication, as well as Analog 4-20 mA signals for real-time process variables to/from the HART-compatible device. 

Architectures

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Features and Benefits

  • Support for point-to-multipoint network, maximum of 7 devices (EtherNet/IP only)
  • Support for point-to-point networks with EtherNet/IP, Modbus TCP/IP or DNP3 (TCP/UDP) protocols
  • Support for point to multipoint networks with EtherNet/IP and Modbus TCP/IP protocols
  • Support for automatic configuration in Multidrop mode for Logix Controllers
  • Support for PCCC (AB-ETH) protocol, allowing legacy controllers to easily interface to HART modules
  • Support for Factory Talk View for point to point and multidrop HART devices
  • EtherNet/IP enables a HART device to be added directly into a Rockwell Automation® Logix I/O tree
  • Modbus TCP/IP enables a HART field device to be viewed as a Modbus Slave device
  • DNP3 converts a HART field device into a DNP3 Outstation (slave) supporting Secure Authentication
  • DTM (Device Type Manager) / HART Pass-through is available for simplifying device configuration and management using an FDT frame
  • Built-in webserver provides detailed diagnostics of system configuration and operation as well as field device diagnostics
  • Can be used in a redundant ControlLogix® controller system
  • Advanced Diagnostics automatically extracted and written to Logix Tag

Specifications

HART 4 Channel Input

Specification

Description

Number of Channels

4

ADC Resolution

12 bit

Input Impedence

247.5 Ω

Accuracy (Calibrated 25°C)

< 0.15 %

Accuracy (Uncalibrated)

< 0.30 %

Range

0 to 22 mA

Current limit

34 mA

EtherNet/IP

Specification

Description

Connector

RJ45

Conductors

CAT5 STP/UTP

ARP Connections

Max 20

TCP Connections

Max 20

CIP Connections

Max 10

Communication Rate

10/100 Mbps

Duplex Mode

Full / Half

Auto MDIX

Yes

Modbus TCP/IP

Specification

Description

Function Codes
Supported

1: Read Coils
2: Read Discrete Inputs
3: Read Holding Registers
4: Read Input Registers

DNP3

Specification

Description

Mode Supported

DNP3 Outstation

Application Functions Supported

Read 
Write 
Select/Operate 
Direct-Operate 
Direct-Operate-No-Response 
Authentication Request
Authentication Response

Unsolicited Response Supported

No

DNP3 Events Supported

No

DNP3 Secure Authentication

Specification

Description

Key Change Method Supported

Pre-shared

MAC Algorithms Supported

HMAC SHA-1 encryption (4 octets, serial) – for legacy support
HMAC SHA-1 encryption (8 octets, serial)
HMAC SHA-1 encryption (10 octets, networked)
HMAC SHA-256 encryption (8 octets, serial)
HMAC SHA-256 encryption (16 octets, networked)
AES-GMAC (12 octets)

Key Wrap Algorithms Supported

AES-128 Key Wrap
AES-256 Key Wrap

Aggressive Mode Supported

No

Hardware

Physical Specifications

Specification

Description

Enclosure Rating

IP20, NEMA/UL Open Type

Temperature

-20 to 70 °C

Earth connection

Yes, terminal based

Emissions

IEC61000-6-4

ESD Immunity

EN 61000-4-2

Radiated RF Immunity

IEC 61000-4-3

EFT/B Immunity

EFT: IEC 61000-4-4

Surge Immunity

Surge: IEC 61000-4-5

Conducted RF Immunity

IEC 61000-4-6

Hardware Specifications

Specification

Description

Enclosure

Plastic

Dimensions (H x W x D)

101 x 22.5 x 120 mm

Power Requirements

12 to 28 VDC

35mA @ 24 VDC - With no field devices attached

130mA @ 24 VDC - With 4 field devices at 22mA each

64mA @12 VDC - With no field devices attached

160mA @ 12 VDC - With 4 field devices at 22mA each

Power Consumption

0.9 W - With no field devices attached
3.1 W - With 4 field devices at 22mA each
4.3 W - With input channels shorted

Power Connector

3-way terminal

Connector (Analog)

2-way terminal

Conductors

24 to 18 AWG

Certifications

CB Safety 350.20 kB Last Modified 12/05/2018
ATEX Letter of Conformity 84.70 kB Last Modified 05/12/2022
Declaration of Conformity (RoHS/CE) 139.57 kB Last Modified 11/16/2022
ODVA EtherNet/IP Declaration of Conformity 135.16 kB Last Modified 10/15/2020
UL/cUL; Class1, Div 2 236.84 kB Last Modified 09/04/2019
Country Approval - Eurasian Customs Union Conformity (EAC) (Wired) 1.92 MB Last Modified 02/11/2022
Declaration of REACH Compliance 128.14 kB Last Modified 11/16/2022