GE Multilin D20E Product manual

GE
Grid Solutions
Installation and Maintenance Guide
994-0145
Version 1.00 Revision 4
DAPserver Studio Version:6.2.0-4
GE Information
MultilinTM D20E
Ethernet I/O Module

GE Grid Solutions
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D20E ETHERNET I/O MODULE INSTRUCTION MANUAL GE INFORMATION 3
D20E Ethernet I/O Module
Table of contents
PRODUCT SUPPORT Access the GE Grid Solutions Web site.......................................................................9
Search GE Grid Solutions technical support library.................................................9
Contact GE Grid Solutions technical support .........................................................10
GE Grid Solutions address ..........................................................................................10
Product returns.............................................................................................................10
ABOUT THIS
DOCUMENT
Purpose ..........................................................................................................................11
Intended audience ......................................................................................................11
Example module being configured and monitored................................................12
Additional documentation .........................................................................................12
GE Grid Solutions and Alstom product naming ......................................................12
Form C point references..............................................................................................12
How to use this manual ..............................................................................................13
Safety words and definitions......................................................................................13
BEFORE YOU START Product overview..........................................................................................................16
Comparing D20E to D.20 I/O module operation............................................................................. 17
Safety precautions .......................................................................................................17
High voltage
.............................................................................................................................................................................17
Protective earth ground ............................................................................................................................. 18
Terminal blocks TB1 and TB2................................................................................................................... 18
Warning symbols ......................................................................................................................................... 19
Operating environment..............................................................................................................................19
Cyber security precautions....................................................................................................................... 19
Hardware overview......................................................................................................20
Configure device firmware .........................................................................................21
DAPserver Studio device configuration tool..................................................................................... 21
Terminal emulator ........................................................................................................................................21
Data communications ................................................................................................................................ 21
DNP3 server .....................................................................................................................................................22
Ordering guides............................................................................................................23

4 GE INFORMATION D20E ETHERNET I/O MODULE INSTRUCTION MANUAL
TABLE OF CONTENTS
Specifications ................................................................................................................26
Testing and certification .............................................................................................32
Approvals...........................................................................................................................................................32
Tests and Standards.....................................................................................................................................32
RoHS compliance..........................................................................................................33
Storage recommendations.........................................................................................34
Storage conditions .......................................................................................................................................34
INSTALLING THE
D20E MODULE
Required tools and materials.....................................................................................35
Installation process......................................................................................................36
CONFIGURING THE
D20E FIRMWARE
Set up procedure ..........................................................................................................37
DAPserver Studio installation...................................................................................................................38
Start DAPserver Studio ................................................................................................................................40
Change D20E module IP address...........................................................................................................41
DAPserver Studio sync project.................................................................................................................43
Working with projects .................................................................................................43
Create a project..............................................................................................................................................44
Open a project.................................................................................................................................................47
Import an existing project from a folder.............................................................................................47
Import an existing project from a device ...........................................................................................48
Save a project..................................................................................................................................................48
Delete a project...............................................................................................................................................49
Configuring D20E modules .........................................................................................49
Configure NTP time sync ............................................................................................................................50
Change an existing user’s password....................................................................................................51
Change an existing user’s permissions ...............................................................................................53
Configuring points........................................................................................................55
Digital input points.......................................................................................................55
Single and double digital input................................................................................................................55
COS and SOE ....................................................................................................................................................56
Two Level Filtering.........................................................................................................................................56
Debounce filter period.................................................................................................................................56
Chatter filter (oscillation suppression)..................................................................................................56
Digital input status change report as counter value ....................................................................57
Digital input point quality flag..................................................................................................................57
Digital input configuration settings.......................................................................................................57
Double digital input configuration procedure..................................................................................59
Counter points.................................................................................................................................................60
Analog input points......................................................................................................63
Analog value type ..........................................................................................................................................63
Analog report deadband............................................................................................................................63
Analog alarm threshold, hysteresis and qualification period ...................................................63
Analog input point quality flag ................................................................................................................64
Analog input configuration settings......................................................................................................64
Analog input configuration procedure ................................................................................................68
Control output points ..................................................................................................69
Control output type.......................................................................................................................................69
Control output point quality flag ............................................................................................................70
Control output point configuration settings......................................................................................70
Check operation of the D20E......................................................................................73
Operation of control output points........................................................................................................73

TABLE OF CONTENTS
D20E ETHERNET I/O MODULE INSTRUCTION MANUAL GE INFORMATION 5
Check the D20E system status ...............................................................................................................73
Access the Event Log...................................................................................................................................73
Make D20E device setting changes ..........................................................................74
MOUNTING A D20E
MODULE
Mounting........................................................................................................................75
Rack spacing .................................................................................................................75
Required clearances ....................................................................................................................................75
Rack mounting procedure ..........................................................................................76
CONNECTING TO
DEVICES AND
NETWORKS
D20E connectors...........................................................................................................77
Console port ..................................................................................................................78
Console port connection............................................................................................................................78
Set up the console port .............................................................................................................................. 78
Network data communication...................................................................................79
Network address setting and or modification................................................................................. 79
Daisy-chaining D20E modules ...................................................................................82
PRELIMINARY
POWER UP AND
TEST
Safety and protective earth grounding....................................................................83
Power source connection ...........................................................................................84
Power supply requirements .......................................................................................85
Preliminary power-up and test procedure ..............................................................85
CONNECTING FIELD
WIRING TO THE
D20E MODULE
D20E-A analog inputs module ...................................................................................87
D20E-K control outputs module ................................................................................89
Control output external supply ............................................................................................................... 90
Remote/Local switch ...................................................................................................................................90
Trip/Close Control Outputs........................................................................................................................ 90
Form C control outputs...............................................................................................................................91
Raise/Lower control outputs....................................................................................................................91
DPST control outputs...................................................................................................................................91
D20E-S digital inputs module.....................................................................................95
D20E-C combination inputs and outputs module..................................................97
D20E-C module digital inputs.................................................................................................................. 98
D20E-C module analog inputs ................................................................................................................ 98
D20E-C module control outputs.............................................................................................................99
POWERING-UP AND
TESTING A D20E
MODULE
Prerequisites .............................................................................................................. 101
Power up procedure.................................................................................................. 102
Test your field I/O...................................................................................................... 102
USING THE D20E
MODULE
Side panel.................................................................................................................... 104
Front panel ................................................................................................................. 105
LEDs common to all D20E module types ........................................................................................ 105
Module remote/local switch.................................................................................................................. 105
Terminal block connector summary ................................................................................................. 105
D20E-K module front panel ..................................................................................... 106
D20E-K LEDs ................................................................................................................................................. 106

6 GE INFORMATION D20E ETHERNET I/O MODULE INSTRUCTION MANUAL
TABLE OF CONTENTS
Remote/local switch..................................................................................................................................106
D20E-K connectors ....................................................................................................................................106
Operate a raise/lower DO point ...........................................................................................................107
D20E-A module front panel ..................................................................................... 108
D20E-A LEDs..................................................................................................................................................108
D20E-A connectors ....................................................................................................................................108
D20E-S module front panel...................................................................................... 109
D20E-S LEDs ..................................................................................................................................................109
D20E-S connectors.....................................................................................................................................109
D20E-C module front panel ..................................................................................... 110
D20E-C LEDs..................................................................................................................................................110
Remote/local switch..................................................................................................................................110
D20E-C connectors ....................................................................................................................................110
MAINTAINING A
D20E MODULE
FIRMWARE
Upgrade project......................................................................................................... 111
Update firmware ....................................................................................................... 111
Reset device communication protocol and point mapping .............................. 113
SERVICINGTHE D20E
MODULE
HARDWARE
Performing periodic inspection ............................................................................. 116
Preventative maintenance ...................................................................................... 116
Rebooting the D20E .................................................................................................. 116
Fuse replacement...................................................................................................... 116
DIP switch settings.................................................................................................... 117
Firmware update ....................................................................................................... 118
Clock setting............................................................................................................... 118
Time synchronization ............................................................................................... 118
REMOVING THE
D20E FROM SERVICE
Remove your configuration data and sensitive information from the D20E . 119
Returning the D20E for maintenance................................................................................................119
Device disposal ............................................................................................................................................120
Remove configuration data on a PC ...................................................................... 120
STANDARDS &
PROTECTION
Compliance standards ............................................................................................. 121
DAPSERVER STUDIO Screen layout.............................................................................................................. 125
Main window .............................................................................................................. 126
Project configuration window................................................................................. 127
Window title bar ..........................................................................................................................................127
Menu bars.......................................................................................................................................................128
Main workspace ..........................................................................................................................................128
Task bar...........................................................................................................................................................128
D20E MODULE
DNP3 SERVER
PROFILE
DNP3 IED protocol document.................................................................................. 129
DNP3 object implementation table........................................................................ 131

TABLE OF CONTENTS
D20E ETHERNET I/O MODULE INSTRUCTION MANUAL GE INFORMATION 7
MISCELLANEOUS Warranty..................................................................................................................... 135
Revision history ......................................................................................................... 135
LIST OF ACRONYMS Acronym Definitions ................................................................................................. 137
FREQUENTLY ASKED
QUESTIONS
Questions and answers............................................................................................ 139

D20E ETHERNET I/O MODULE INSTRUCTION MANUAL GE INFORMATION 9
D20E Ethernet I/O Module
Product Support
Product Support
If you need help with any aspect of your GE Grid Solutions product, you can:
• Access the GE Grid Solutions Web site
• Search the GE Technical Support library
• Contact Technical Support
Also covered are:
• The GE Grid Solutions address
• Instructions on returning a D20E to GE Grid Solutions
• Additional product documents which support
• Firmware upgrade information
Access the GE Grid Solutions Web site
The GE Grid Solutions Web site provides fast access to technical information, such as
manuals, release notes and knowledge base topics.
Visit us on the Web at: http://www.gegridsolutions.com
Search GE Grid Solutions technical support library
This site serves as a document repository for post-sales requests. To get access to the
Technical Support Web site, go to:
http://sc.ge.com/*SASTechSupport

10 GE INFORMATION D20E ETHERNET I/O MODULE INSTRUCTION MANUAL
PRODUCT SUPPORT
Contact GE Grid Solutions technical support
GE Grid Solutions Technical Support is open 24 hours a day, seven days a week for you to
talk directly to a GE representative.
In the U.S. and Canada, call toll-free: 1 800-547-8629
International customers, please call: + 1 905-927-7070
Or e-mail to [e-mail]
Have the following information ready to give to Technical Support:
• Ship to address (the address that the product is to be returned to)
• Bill to address (the address that the invoice is to be sent to)
•Contactname
• Contact phone number
• Contact fax number
• Contact e-mail address
• Product number / serial number
• Description of problem
Technical Support provides you with a case number for your reference.
GE Grid Solutions address
The GE Grid Solutions company address is:
GE Grid Solutions
650 Markland Street
Markham, Ontario
Canada L6C 0M1
Product returns
A Return Merchandise Authorization (RMA) number must accompany all equipment being
returned for repair, servicing, or for any other reason. Before you return a product, please
contact GE Grid Solutions to obtain an RMA number and instructions for return shipments.
You are sent the RMA number and RMA documents via fax or e-mail. Once you receive the
RMA documents, attach them to the outside of the shipping package and ship to GE Grid
Solutions.
NOTE
Product returns are not accepted unless accompanied by the Return Merchandise
Authorization number.

D20E ETHERNET I/O MODULE INSTRUCTION MANUAL GE INFORMATION 11
D20E Ethernet I/O Module
About this Document
About this Document
Purpose
This manual provides:
• Information about installing, setting up, using and maintaining your MultilinTM D20E
Ethernet I/O Module.
• Procedures for configuring and communicating with the D20E module. Once these
procedures are complete, you can view live data on the D20E module as well as
modify the configuration for the utility system.
• Product safety information, as well as, hardware and software interface and
connections for the D20E Ethernet I/O Module.
• A description of the hardware configuration settings and installation requirements.
Intended audience
This manual is intended for use by field technicians and maintenance personnel who are
responsible for the installation, upgrade, wiring and maintenance of SCADA equipment.
This manual assumes that the user is experienced in:
• Electrical utility applications
• Electrical wiring and safety procedures
• Other related manufacturers’ products, such as protective relays and
communications equipment

12 GE INFORMATION D20E ETHERNET I/O MODULE INSTRUCTION MANUAL
ABOUT THIS DOCUMENT
Example module being configured and monitored
This manual does not describe the configuration of each D20E module, but often describes
the D20E-C (Combination I/O) module as an example.
The DAPserver Studio firmware 6.2.0-4 or greater, is used to configure and monitor the
D20E modules.
Additional documentation
For the most current version of the D20E Ethernet I/O Module Instruction Manual, please
download a copy from:
http://www.gedigitalenergy.com/multilin/energy/catalog/d20e.htm
For further instructions on using DAPserver Studio, refer to the:
• DAPserver Studio Online Help
• DAPserver Studio User Guide
GE Grid Solutions and Alstom product naming
The following table provides a cross-references of the GE Grid Solutions IO module product
names, and the equivalent legacy Alstom product names:
Form C point references
The D20E Ethernet I/O Module supports Form C points.
NOTE
GE Grid Solutions legacy products, such as the D.20 I/O module, provide document
references to Form C points, which are more accurately described as dual points.
Product description Product name
Alstom GE Grid Solutions
Combination I/O module (mixed I/O module) DAP-MIO D20E-C
Analog Input module DAP-AI D20E-A
Digital Input (status) module DAP-DI D20E-S
Digital Output (control) module DAP-CO D20E-K
Digital Output (control) module - interface to
DB25 DAP-CR Interface D20E-K: Control Peripheral, DB25

ABOUT THIS DOCUMENT
D20E ETHERNET I/O MODULE INSTRUCTION MANUAL GE INFORMATION 13
How to use this manual
This manual describes how to install the D20E and get it up and running for the first time.
The software-related procedures in this manual are based on using a computer running
Windows®7 or later. Some steps and dialog boxes may vary slightly if you are using
another version of Windows.
Safety words and definitions
Before attempting to install or use the device, review all safety indicators in this document
to help prevent injury, equipment damage or downtime.
The following safety and equipment symbols are used in this document:
Indicates a hazardous situation which, if not avoided, results in death or serious injury.
Indicates a hazardous situation which, if not avoided, could result in death or serious
injury.
Indicates a hazardous situation which, if not avoided, could result in minor or
moderate injury.
Indicates practices that are not related to personal injury.

D20E ETHERNET I/O MODULE INSTRUCTION MANUAL GE INFORMATION 15
D20E Ethernet I/O Module
Chapter 1: Before You Start
Befo re You St art
The D20E Ethernet I/O Modules provide digital input, control output and analog input
interfaces, as well as, a mixed interface I/O unit.
These products can be integrated with GE Grid Solutions D400, DAP-416, DMC490, and D2x
substation automation products or installed as stand-alone I/O modules with either DNP3
TCP/IP subset level 2 or IEC 61850 GGIO server network protocols.
Before you begin installing and using the D20E, review the information in this chapter,
including the following topics:
•Product overview on page 16
•Safety precautions on page 17
•Hardware overview on page 20
•Configure device firmware on page 21
•Ordering guides on page 23
•Specifications on page 26
•RoHS compliance on page 33
•Storage recommendations on page 34
Read and thoroughly understand this manual before installing and operating the unit.
Save these instructions for later use and reference.
Failure to observe the instructions in this manual may result in death or serious injury.

16 GE INFORMATION D20E ETHERNET I/O MODULE INSTRUCTION MANUAL
CHAPTER 1: BEFORE YOU START
Product overview
The D20E Ethernet I/O Module set is comprised of the:
• D20E-C module; 16 digital inputs, 8 control outputs and 16 analog inputs; see Figure 1
• D20E-S module; 64 digital (status) inputs; see Figure 2
• D20E-K module; 32 control outputs; see Figure 3
• D20E-A module; 32 analog inputs; see Figure 4
Figure 1: D20E-C (combination inputs/outputs) module front panel
Figure 2: D20E-S (status digital inputs) module front panel
Figure 3: D20E-K (control digital outputs) module front panel
Figure 4: D20E-A (analog inputs) module front panel

CHAPTER 1: BEFORE YOU START
D20E ETHERNET I/O MODULE INSTRUCTION MANUAL GE INFORMATION 17
Comparing D20E to D.20 I/O module operation
The D20E Ethernet I/O Module is a new product that is similar in functionality to the legacy
GE Grid Solutions D.20 I/O modules.
However, some aspects of the D20E I/O module operation is quite different from that of the
D.20 I/O module. For example, on the D20E module the:
• R/L (Raise/Lower) Digital Output point uses the T/C (Trip/Close) WESMAINT command
• R/L (Raise/Lower) Digital Output does not support simultaneous operations on two
different points
• T/C (Trip/Close) Digital Output point does not support a repeat count as does the D.20
module.
Always refer to this manual when starting to install, configure, and operate the D20E.
Safety precautions
High voltage
High voltage may be present on TB2 terminal block connections for control outputs and
digital inputs.
• Ensure that the module is attached to the protective earth ground at the connection
point shown in Figure 15.
• Many of the components within the D20E Ethernet I/O Modules are susceptible to
damage from electrostatic discharge (ESD). Always apply ESD precautions when the
top cover is removed.
• Ensure that cable shields are grounded at either the D20E module ground point or at
the field equipment ground. Do not ground the shields at more than one point
because a potential difference may exist between grounds, causing ground loops and
undesirable noise sources.
• Always replace fuses with the same type and rating as those originally provided byGE
Grid Solutions.
• Always use fuse-protected external DC power sources.
• The D20E requires a secondary enclosure for complete fire containment.
• To prevent interference with communications, route all network cables away from
power carrying cables.
• The D20E module comes with factory configuration as ordered. Always check the
order code configuration on the D20E prior to connecting field I/O.
• Do not operate the D20E if it has been dropped or damaged. Return it to GE Grid
Solutions for inspection and repair.
• Input voltages and currents must be within specified limits (see Specifications on page
26) prior to connecting power sources to the D20E Ethernet I/O Module. Do not apply
voltages or currents outside the range of the product specifications. Voltages or
currents outside the specified range may lead to product failure.
• Only qualified personnel should work on the D20E. Maintenance personnel must be
familiar with the technology and the hazards associated with electrical equipment.
•Never work alone.

18 GE INFORMATION D20E ETHERNET I/O MODULE INSTRUCTION MANUAL
CHAPTER 1: BEFORE YOU START
• Before performing visual inspections, tests, or maintenance on this equipment, isolate
or disconnect all hazardous live circuits and sources of electric power. Assume that all
circuits are live until they have been completely de-energized, tested, and tagged. Pay
particular attention to the design of the power system. Consider all sources of power,
including the possibility of back feed.
• Turn off all power supplying the equipment in which the D20E is to be installed before
installing and wiring the D20E.
• Operate only from the power source specified on the installed power supply module.
• Beware of potential hazards and wear personal protective equipment.
• The successful operation of this equipment depends upon proper handling,
installation, and operation. Neglecting fundamental installation requirements may
lead to personal injury as well as damage to electrical equipment or other property.
• Hazardous voltages can cause shock, burns or death. To prevent exposure to
hazardous voltages, disconnect and lock out all power sources before servicing and
removing components.
• If the D20E is used in a manner not specified in this manual, the protection provided
by the equipment may be impaired.
• Changes or modifications made to the unit not authorized by GE Grid Solutions could
void the warranty.
Protective earth ground
The D20E must be attached with a 4 mm2(#12 AWG) wire and a secure ring lug earth
ground connected to the safety and protective earth #10 screw and lock washer stud
located at bottom right of module (see Figure 15).
Terminal blocks TB1 and TB2
For stranded wire connections to terminal blocks TB1 and TB2 use crimp ferrules.
Wiring to terminal blocks TB1 and TB2 must not have exposed accessible conductors.
Wire and cable must have at least a +80 °C temperature rating.

CHAPTER 1: BEFORE YOU START
D20E ETHERNET I/O MODULE INSTRUCTION MANUAL GE INFORMATION 19
Warning symbols
Table 1 explains the meaning of warning symbols that may appear on the D20E.
Table 1: Warning symbols
Operating environment
D20E modules are intended to be installed in either 19 inch rack or in flat surface panel
mounting applications, within a semi-controlled environment. Do not place the D20E
products in environments where unusual conditions exist (temperature, water, corrosion or
dust), unless they are within a secondary protected enclosure.
Cyber security precautions
The D20E can be deployed with a GE Grid Solutions' server (for example, D20MX or D400) or
with IEDs, provided the D20E is behind the GE Grid Solutions server or IED.
D20E Ethernet I/O Modules are intended to be installed inside the electronic security
perimeter of a system (ESP). They shall not be directly connected to another LAN, nor be
used as an electronic access point (EAP). In this case, firmware upgrade and configuration
change cannot be done remotely.
D20E modules are configured by default with two user accounts (that is, the root account,
and the admin account). It is recommended to change the passwords for these accounts
as soon as possible.
Symbol Description
The relevant circuit is direct current.
The relevant circuit is alternating current.
Caution: Refer to the documentation for important operation and
maintenance instructions. Failure to take or avoid specified actions could
result in loss of data or physical damage.
Warning: Dangerous voltage constituting risk of electric shock is present
within the unit. Failure to take or avoid specified actions could result in
physical harm to the user.
Earth/Ground Terminal
Protective Ground Terminal
Caution: Hot Surface
!

20 GE INFORMATION D20E ETHERNET I/O MODULE INSTRUCTION MANUAL
CHAPTER 1: BEFORE YOU START
Hardware overview
The D20E Ethernet I/O Modules are distributed network input/output modules for
substation automation that support:
• 64 digital inputs
• 32 control outputs
• 32 analog inputs or
• A mix of 8 control outputs, 16 analog inputs, 16 digital inputs.
Two redundant switched LAN connections are provided using either the DNP3 TCP/IP or
the IEC 61850 server protocols.
The D20E modules are highly reliable, incorporating state-of-the-art technology. They are
comprised of a logic board subassembly and interface board subassembly housed on a
mounting panel with an integral top cover (see Figure 5). Field connections are facilitated
by compression type termination blocks.
Figure 5: D20E module sub-assemblies
Input/output configurations are factory set for digital inputs, control outputs and analog
inputs. Digital inputs on the D20E-S or D20E-C modules are configured for either of the
following nominal input types:
• LVDI (low voltage digital input), or
• HVDI (high voltage digital input).
Control outputs on the D20E-K or D20E-C modules are configured to one of the following:
•Trip/Close
•FormCcontacts
• DPST outputs
•Raise/Lower
Analog inputs accept DC sensor or transducer signals and can be set for either voltage or
current inputs on an individual per input basis.
A REMOTE/LOCAL switch is provided on both the D20E-K and D20E-C modules to enable or
disable control outputs for added station maintenance safety.
Display Cover
Logic Board
Subassembly
Interface
Board
Subassembly
Terminal Blocks Metal Mounting Plate

CHAPTER 1: BEFORE YOU START
D20E ETHERNET I/O MODULE INSTRUCTION MANUAL GE INFORMATION 21
Configure device firmware
The D20E firmware is a combination of program code and data stored in an embedded
computer platform. The firmware is stored in non-volatile memory.
The D20E modules are connected to the D20E LAN port and then configured with
DAPserver Studio V6.2.0-4 (or a later) version. For information on the LAN port connectors,
see section: Network data communication on page 79.
DAPserver Studio device configuration tool
DAPserver Studio is a configuration tool for the D20E modules. which allows you to:
• Configure the D20E module for optimum performance.
• Map and translate D20E point values/status into the module server protocol, report
real-time data from the connected D20E device and execute control commands from
a local control point.
• Monitor D20E real-time data values, point states and system health information.
To change the module's configuration, use the DAPserver Studio Settings and Sync menu
options.
Terminal emulator
You can use either the PuTTY or the Tera Term terminal emulator as a connection interface
to access the D20E console USB interface. You can execute standard Linux commands
from the D20E console for setup and debugging. These terminal emulators can be
downloaded from:
• PuTTY: www.puttyorg.
•TeraTerm:www.SourceForge.jp.
PuTTY and Tera Term are free, open-source terminal emulators which support serial
console and network terminal emulation with SSH encryption.
For information on the USB 2.0 connector, see section Console port on page 78.
Data communications
The D20E module supports the following TCP/IP network based communication protocols:
•IEC61850 GGIO server
•DNP3server
NOTE
Redundancy is not an enabled feature on the D20E (not licensed).

22 GE INFORMATION D20E ETHERNET I/O MODULE INSTRUCTION MANUAL
CHAPTER 1: BEFORE YOU START
DNP3 server
DNP3, the Distributed Network Protocol, is a standards-based communications protocol
developed to achieve interoperability among systems in the electric utility and substation
automation. This robust, flexible non-proprietary protocol is based on existing open
standards to work within a variety of networks.
DNP3 in the D20E module offers flexibility and functionality which includes:
• Multiple data types (Data Objects and Variations).
• Multiple master stations are supported for D20E DNP3 server.
• Unsolicited data report is initiated from outstations to master stations.
• Data types (Objects) can be assigned priorities (Class) and be requested based on the
priority.
• Time-stamped events.
• Broadcast messages.
• Data link and application layer confirmation and configurable.