APARIAN A-HRT-4I User manual

HART 4 Devices
User Manual
A-HRT-4I
A-HRT-4O
Document No. D113-015
07/2018
Revision 1.9

Preface
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Revision 1.9
CONTENTS
1. Preface ............................................................................................................................... 4
1.1. Features ....................................................................................................................... 4
1.2. Additional Information ................................................................................................ 5
1.3. References ................................................................................................................... 5
1.4. Support ........................................................................................................................ 5
2. Installation ......................................................................................................................... 6
2.1. Module Layout ............................................................................................................ 6
2.2. Module Mounting ....................................................................................................... 8
2.3. Power .......................................................................................................................... 9
2.4. Analog (HART) ............................................................................................................. 9
2.5. Ethernet Port ............................................................................................................. 10
3. Setup ................................................................................................................................ 11
3.1. Install Configuration Software .................................................................................. 11
3.2. Network Parameters ................................................................................................. 11
3.3. Creating a New Project .............................................................................................. 15
3.4. HART 4 parameters ................................................................................................... 17
3.5. Module Download ..................................................................................................... 26
3.6. Logix Integration........................................................................................................ 28
3.6.1. Add Module to I/O Configuration ...................................................................... 28
3.6.2. Importing UDTs and Mapping Routines ............................................................ 31
4. Operation ......................................................................................................................... 34
4.1. Logix 5000.................................................................................................................. 34
4.1.1. Input Assembly................................................................................................... 34
4.1.2. Output Assembly................................................................................................ 36
4.1.3. HART Relay Message .......................................................................................... 37
4.2. DNP3 Operation ........................................................................................................ 43
4.2.1. DNP3 Security .................................................................................................... 44
4.3. Modbus TCP Operation ............................................................................................. 46
5. Diagnostics ....................................................................................................................... 49
5.1. LEDs ........................................................................................................................... 49
5.2. Module Status Monitoring in Slate ........................................................................... 50
5.2.1. EtherNet/IP Status ............................................................................................. 52
5.2.2. DNP3 .................................................................................................................. 53
5.2.3. Modbus .............................................................................................................. 55

Preface
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5.3. Channel Status ........................................................................................................... 56
5.4. Device List .................................................................................................................. 64
5.5. Calibration ................................................................................................................. 65
5.5.1. Input Calibration: ............................................................................................... 66
5.5.2. Output Calibration: ............................................................................................ 67
5.6. Module Event Log...................................................................................................... 68
5.7. Web Server ................................................................................................................ 69
6. Asset Management FDT – DTM Technology .................................................................... 70
7. What is HART ................................................................................................................... 71
7.1. Introduction to HART ................................................................................................ 71
8. Technical Specifications ................................................................................................... 72
8.1. Dimensions ................................................................................................................ 72
8.2. Electrical .................................................................................................................... 73
8.3. Ethernet ..................................................................................................................... 73
8.4. Analog Input ChanneL (HART 4 In) ............................................................................ 74
8.5. Analog Output ChanneL (HART 4 Out) ...................................................................... 74
8.6. Certifications ............................................................................................................. 74
9. Index ................................................................................................................................. 76
Revision History
Revision Date Comment
1.0 13 Apr 2016 Initial document
1.1 26 June 2016 Updated temperature range
1.2 11 August 2016 Added RoHS2 compliant to certifications
1.3 24 September 2016 Added ODVA EtherNet/IP Conformance Mark
1.4 14 November 2016 Minor change to V19 UDT.
1.5 22 November 2016 Added HART Advanced Diagnostics
1.6 23 May 2017 Add support for two additional interface modes.
Add RCM Conformance mark.
1.7 22 August 2017 Remove EDS AOP section as the module does not support this
1.8 20 February 2018 Added support for multidrop
Added device list
Update Modbus/DNP3 Device Info addresses
Added support for burst operation
1.9 23 July 2018 Added indication if channel is enabled and if HART is enabled on that channel.

Preface
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1. PREFACE
1.1. FEATURES
The HART 4 module can convert up to four analog devices into either EtherNet/IP, Modbus-
TCP, or DNP3 TCP/UDP protocols. This includes 4 to 20 mA input and output devices with or
without HART communications as well as 0 to 20 ma devices without HART.
The Hart 4 is available in Input or Output variations:
1) A-HRT-4I for HART input devices like process instruments.
2) A-HRT-4O for HART output devices like valve positioners.
The conversion to EtherNet/IP enables a HART device to be added directly into a Rockwell
Automation Logix IO tree. The Modbus-TCP option enables a HART field device to be viewed
as a Modbus Slave. The DNP3 option converts a HART field device into a DNP3 Outstation.
The DNP3 option, also supports Secure Authentication, ensuring secure communications
across the Ethernet network.
In addition, a rich collection of process and diagnostic information is provided directly into
Logix, without the use of any explicit messaging. HART commands can also be relayed to the
device using an EtherNet/IP message relay object. A DTM (Device Type Manager) is available
further simplifying device configuration and management using an FDT frame. A built-in
webserver provides detailed diagnostics of system configuration and operation as well as field
device specific diagnostics.
The Hart 4 module is configured using the Aparian Slate application. This program can be
downloaded from www.aparian.com free of charge.
Hereafter the Hart 4 module will be referred to as the module.

Preface
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1.2. ADDITIONAL INFORMATION
The following documents contain additional information that can assist the user with the
module installation and operation.
Resource Link
Slate Installation http://www.aparian.com/software/slate
User
Manual
,
Datasheet
Example Code & UDTs
http://www.aparian.com/products/hart4
Ethernet wiring standard www.cisco.com/c/en/us/td/docs/video/cds/cde/cde205_220_420/installa
tion/guide/cde205_220_420_hig/Connectors.html
Table 1.1. - Additional Information
1.3. REFERENCES
Resource Link
HART Communication
Foundation http://en.hartcomm.org/
DNP3 http://www.dnp.org
CIP Routing The CIP Networks Library, Volume 1, Appendix C:Data Management
Modbus http://www.modbus.org
Table 1.2. - References
1.4. SUPPORT
Technical support is provided via the Web (in the form of user manuals, FAQ, datasheets etc.)
to assist with installation, operation, and diagnostics.
For additional support the user can use either of the following:
Resource Link
Contact Us web link www.aparian.com/contact-us
Support email [e-mail]
Table 1.3. – Support Details

Installation
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2. INSTALLATION
2.1. MODULE LAYOUT
The module has six ports at the bottom of the enclosure as shown in the figure below. The
ports are used for Ethernet, the four analog HART channels and power. The power port uses
a three-way connector which is used for the DC power supply and the earth connection.
The Ethernet cable must be wired according to industry standards which can be found in the
additional information section of this document.
Figure 2.1. – HART-4 (Input) module side view
The module provides six diagnostic LEDs as shown in the front view figure below. These LEDs
are used to provide information regarding the module system operation, the Ethernet
interface, and the status of each of the four analog HART channels.

Installation
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Figure 2.2. – HART 4 (Input) front and top view
The module provides four DIP switches at the top of the enclosure as shown in the top view
figure above.
DIP Switch Description
DIP Switch 1 Used to force the module into “Safe Mode”. When in “Safe Mode” the module will not
load the application firmware and will wait for new firmware to be downloaded. This
should only be used in the rare occasion when a firmware update was interrupted at
a critical stage.
DIP Switch 2 This will force the module into DHCP mode which is useful when the user has forgotten
the IP address of the module.
DIP Switch 3 Reserved
DIP Switch 4 Reserved
Table 2.1. - DIP Switch Settings

Installation
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2.2. MODULE MOUNTING
The module provides a DIN rail clip to mount onto a 35mm DIN rail.
Figure 2.3 - DIN rail specification
The DIN rail clip is mounted on the bottom of the module at the back as shown in the figure
below. Use a flat screw driver to pull the clip downward. This will enable the user to mount
the module onto the DIN rail. Once the module is mounted onto the DIN rail the clip must be
pushed upwards to lock the module onto the DIN rail.
Figure 2.4 - DIN rail mouting

Installation
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2.3. POWER
A three-way power connector is used to connect Power+, Power– (ground), and earth. The
module requires an input voltage of 12 – 28Vdc. Refer to the technical specifications section
in this document.
Figure 2.5 - Power connector
2.4. ANALOG (HART)
The Analog HART channels are connected using a two-way connector. The input channels (A-
HRT-4I) are internally loop powered and therefore can be connected directly to the field
device signal terminals.
The output channels (A-HRT-4O) source the current directly and therefore can also be
connected directly to the field device signal terminals. The input and output channels provide
internal current limiting and electronic fuse protection.
Figure 2.6 – Analog (HART) Connection to Field Device
The equivalent Analog Input and Output circuits are shown below.

Installation
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Figure 2.7 – Analog Input Equivalent Circuit
Figure 2.8 – Analog Output Equivalent Circuit
2.5. ETHERNET PORT
The Ethernet connector should be wired according to industry standards. Refer to the
additional information section in this document for further details.

Setup
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3. SETUP
3.1. INSTALL CONFIGURATION SOFTWARE
All the network setup and configuration of the module is achieved by means of the Aparian
Slate device configuration environment. This software can be downloaded from
http://www.aparian.com/software/slate.
Figure 3.1. - Aparian Slate Environment
3.2. NETWORK PARAMETERS
The module will have DHCP (Dynamic Host Configuration Protocol) enabled as factory default.
Thus, a DHCP server must be used to provide the module with the required network
parameters (IP address, subnet mask, etc.). There are a number of DHCP utilities available,
however it is recommended that the DHCP server in Slate be used.
Within the Slate environment, the DHCP server can be found under the Tools menu.
Figure 3.2. - Selecting DHCP Server
Once opened, the DHCP server will listen on all available network adapters for DHCP requests
and display their corresponding MAC addresses.

Setup
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Figure 3.3. - DHCP Server
NOTE: If the DHCP requests are not displayed in the DHCP Server it may be due
to the local PC’s firewall. During installation the necessary firewall rules are
automatically created for the Windows firewall. Another possibility is that
another DHCP Server is operational on the network and it has assigned the IP
address.
To assign an IP address, click on the corresponding “Assign” button. The IP Address
Assignment window will open.
Figure 3.4. - Assigning IP Address
The required IP address can then be either entered, or a recently used IP address can be
selected by clicking on an item in the Recent List. If the “Enable Static” checkbox is checked,
then the IP address will be set to static after the IP assignment, thereby disabling future DHCP
requests.
Once the IP address window has been accepted, the DHCP server will automatically assign the
IP address to the module and then read the Identity object Product name from the device.
The successful assignment of the IP address by the device is indicated by the green
background of the associated row.

Setup
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Figure 3.5. - Successful IP address assignment
It is possible to force the module back into DHCP mode by powering up the device with DIP
switch 2 set to the On position.
A new IP address can then be assigned by repeating the previous steps.
NOTE: It is important to return DIP switch 2 back to Off position, to avoid the
module returning to a DHCP mode after the power is cycled again.
If the module’s DIP switch 2 is in the On position during the address assignment, the user will
be warned by the following message.
Figure 3.6. - Force DHCP warning
In addition to the setting the IP address, a number of other network parameters can be set
during the DHCP process. These settings can be viewed and edited in Slate’s Application
Settings, in the DHCP Server tab.
Once the DHCP process has been completed, the network settings can be set using the
Ethernet Port Configuration via the Target Browser. The Target Browser can be accessed
under the Tools menu.

Setup
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Figure 3.7. - Selecting the Target Browser
The Target Browser automatically scans the Ethernet network for EtherNet/IP devices.
Figure 3.8. - Target Browser
Right-clicking on a device, reveals the context menu, including the Port Configuration option.
Figure 3.9. - Selecting Port Configuration
All the relevant Ethernet port configuration parameters can be modified using the Port

Setup
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Configuration window.
Figure 3.10. - Port Configuration
Alternatively, these parameters can be modified using Rockwell Automation’s RSLinx
software.
3.3. CREATING A NEW PROJECT
Before the user can configure the module, a new Slate project must be created. Under the
File menu, select New.
Figure 3.11. - Creating a new project

Setup
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A Slate project will be created, showing the Project Explorer tree view. To save the project
use the Save option under the File menu. A new device can now be added by selecting Add
under the Device menu.
Figure 3.12. - Adding a new device
In the Add New Device window select the HART 4In or HART 4Out module and click the Ok
button. The configuration of the HART 4In and HART 4Out modules are almost identical and
the two modules will be referred to as the HART 4 module from here on.
Figure 3.13 – Selecting a new HART 4 module
The device will appear in the Project Explorer tree as shown below, and its configuration

Setup
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window opened. The device configuration window can be reopened by either double clicking
the module in the Project Explorer tree or right-clicking the module and selecting
Configuration.
Figure 3.14. – HART 4In module configuration
Refer to the additional information section in this document for Slate’s installation and
operation documentation.
3.4. HART 4 PARAMETERS
The HART 4 module parameters are configured using the Slate configuration utility. The
configuration form is divided into multiple tabs to configure the general, DNP3 and channel
specific parameters.
When downloading this configuration into the module it will be saved in non-volatile memory
that persists when the module is powered down.
NOTE: When a firmware upgrade is performed the module will clear all HART
4 configuration.
The general configuration consists of the following parameters:
Parameter Description
Instance Name This parameter is a user defined name to identify between various HART 4 modules.

Setup
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Description This parameter is used to provide a more detail description of the application for the
module.
IP Address The IP address of the target module
Major Revision The major revision of the module
Protocol There are four protocols that can be selected for the HART 4 module.
EtherNet/IP
This is the default setting and should be selected when the module is being used with
the Rockwell Automation Logix family of controllers.
Modbus TCP
When selected, the device will respond as a Modbus TCP slave.
DNP3 TCP
When selected, the device will respond as a DNP3 Outstation using a TCP.
DNP3 UDP
When selected, the device will respond as a DNP3 Outstation using a UDP.
Node Address The Modbus/DNP3 node address of the device. Valid only when Modbus TCP or DNP3
TCP/UDP protocol has been selected.
Logix Path The destination Logix path to where the Advanced Diagnostics will be written.
Table 3.1 - General configuration parameters
The general configuration is shown in the figure below. The HART 4 general configuration
window is opened by either double clicking on the module in the tree or right-clicking the
module and selecting Configuration.
Figure 3.15. - General Configuration

Setup
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Each of the channel configuration tabs consist of the following parameters:
Parameter Description
Enable Channel Used to Enable or Disable the entire analog channel.
Signal
Range
Select either 4-20mA or 0-20mA.
Note that HART communication will be disabled if the 0-20mA range has been
selected.
Raw Max
The upper milliamp value to be used for the scaling to engineering units.
The scaling to engineering units (EU) is calculated as follows:
EU = EUMin + (RawValue – RawMin) * ((EUMax – EUMin) / (RawMax – RawMin))
Raw Min The lower milliamp value to be used for the scaling to engineering units.
EU Max
The upper engineering value to be used for the scaling to engineering units.
The scaled engineering value will equal this value when the current is equal to
the Raw Max value.
EU Min
The lower engineering value to be used for the scaling to engineering units.
The scaled engineering value will equal this value when the current is equal to
the Raw Min value.
Filter The time constant, in milliseconds, of the first order filter applied to the analog
signal. A value of zero implies no filtering.
HART Communications
Enable HART Used to Enable or Disable the HART Communication.
This should be disabled when using standard (non-HART) analog field devices.
Enable Relay Messages Used to enable or disable pass through (Class 2) messages, either from Logix
(message blocks) or DTMs.
PV Update Rate
The rate at which the HART process variables (PV, SV, TV and FV) are updated.
Select from:
 Fast (As fast as possible)
 1 second
 2 seconds
 5 seconds
 10 seconds
Slowing this rate can enhance the performance of DTM communications. Care
must be taken to not adversely affect the primary control.
Adv. Diag. Ratio The number of process variable updates, between Advanced Diagnostic updates.
Fixed HART Address
The user can fix the address which the HART module will use to communicate
with the attached field device. When this is not enable the HART module will
search for the device from node address 0 to 63.
NOTE: This is used with multidrop architecture.
Trend Defaults

Setup
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Source
The default source of the trend data can be one of the following:
Raw Analog Current - The raw analog signal in milliamps.
Filtered Scaled Value – The analog signal in engineering units.
Digital Current – The current in milliamps reported by the field device (HART).
PV – The Primary Variable in engineering units reported via HART.
SV – The Secondary Variable in engineering units reported via HART.
TV – The Third Variable in engineering units reported via HART.
FV – The Fourth Variable in engineering units reported via HART.
Sample Rate
The period (milliseconds) between sample points. The trend data is a circular
buffer of the latest 1000 points, therefore the total trend time is 1000 * Sample
Rate.
Note: The following items apply only to the HART 4Out module.
Fail Mode
Prog / Fault Freeze
This configuration is used to determine the behaviour of the output analog signal
when the Logix controller enters a faulted or program mode.
Enabling this option freezes the output value to its last state, when a program or
fault state is detected.
Disabling this option forces the output value to the adjacent Fail Value, when a
program or fault state is detected.
This option is only valid when using the EtherNet/IP protocol.
Fail Value (Prog. / Fault) The value, in engineering units, to be applied to the output when a program or
fault state is detected and the above Freeze option is disabled.
Comm Fail Freeze
This configuration is used to determine the behaviour of the output analog signal
when communication from the source (EtherNet/IP, DNP3 or Modbus) is lost.
Enabling this option freezes the output value to its last state, when
communication is lost.
Disabling this option forces the output value to the adjacent Fail Value when
communication is lost.
Fail Value (Comm. Fail) The value, in engineering units, to be applied to the output when communication
from the source has been lost and the above Freeze option is disabled.
Time Out The time, in milliseconds, since the last packet has been received from the source,
before the communication is deemed to have been lost.
Table 3.2 - Channel configuration parameters
The Channel (0) configuration is shown in the figure below. This window is opened by either
double clicking on the module in the tree or right-clicking the module followed by selecting
Configuration. Once in the configuration window select the tab corresponding to the required
channel.