Siemens 3AD8 User manual

Instruction manual

Type 3AD8 remote control unit (RCU) DNP3 protocol

instructions

Installation operation maintenance IC1000-F320-A200-X-4A00

Answers for infrastructure and cities.

www.usa.siemens.com/fusesaver

Important

The information contained herein is general in nature and not

intended for specific application purposes. It does not relieve

the user of responsibility to use sound practices in application,

installation, operation and maintenance of the equipment

purchased. Siemens reserves the right to make changes in the

specifications shown herein or to make improvements at any

time without notice or obligation. Should a conflict arise

between the general information contained in this publication

and the contents of drawings or supplementary material or

both, the latter shall take precedence.

Qualified person

For the purpose of this manual a qualified person is one who

is familiar with the installation, construction or operation of

the equipment and the hazards involved. In addition, this

person has the following qualifications:

Is trained and authorized to de-energize, clear, ground

and tag circuits and equipment in accordance with

established safety procedures.

Is trained in the proper care and use of protective

equipment, such as: rubber gloves, hard hat, safety glasses

or face shields, flash clothing, etc., in accordance with

established safety practices.

Is trained in rendering first aid.

Further, a qualified person shall also be familiar with the proper

use of special precautionary techniques, personal protective

equipment, insulation and shielding materials, and insulated tools

and test equipment. Such persons are permitted to work within

limited approach of exposed live parts operating at 50 volts or

more, and shall, at a minimum, be additionally trained in all of the

following:

The skills and techniques necessary to distinguish exposed

energized parts from other parts of electric equipment

The skills and techniques necessary to determine the nominal

voltage of exposed live parts

The approach distances specified in NFPA 70E®and the

corresponding voltages to which the qualified person will be

exposed

The decision-making process necessary to determine the

degree and extent of the hazard and the personal protective

equipment and job planning necessary to perform the task

safely.

Hazardous voltages.

Will cause death, serious injury or property damage.

Always de-energize and ground the equipment before

maintenance. Read and understand this instruction manual before

using equipment. Maintenance should be performed only by

qualified personnel. The use of unauthorized parts in the repair of

the equipment or tampering by unqualified personnel will result in

dangerous conditions which will cause death, severe injury or

equipment damage. Follow all safety instructions contained herein.

Note:

These instructions do not purport to cover all

details or variations in equipment, or to

provide for every possible contingency to be

met in connection with installation, operation

or maintenance. Should further information be

desired or should particular problems arise

which are not covered sufficiently for the

purchaser’s purposes, the matter should be

referred to the local Siemens sales office.

The contents of this instruction manual shall

not become part of or modify any prior or

existing agreement, commitment or

relationship. The sales contract contains the

entire obligation of Siemens Industry, Inc. The

warranty contained in the contract between

the parties is the sole warranty of Siemens

Industry, Inc. Any statements contained herein

do not create new warranties or modify the

existing warranty.

Table of contents

Introduction 04 – 05

DNP3 points and controls 06 – 10

SCADA interface configuration 11 – 14

Remote control unit (RCU) internal database

and controls 15 – 39

Abbreviations

DNP3 Distributed network protocol

PC Personal computer

PID Point identity (analog PID or digital PID)

PTT Push-to-talk

RCU Remote control unit

SCADA Supervisory control and data acquisition

UTC Universal time coordinated

Introduction

The purpose of the remote control unit

(RCU) is to provide remote SCADA system

access to monitor and control Siemens

Fusesavers installed on power lines. The

RCU maintains an internal database, which

holds information on the Fusesaver line

being monitored and on the RCU itself. It is

this data that is available to the SCADA

system. The internal database is detailed in

this manual, refer to RCU internal database

and controls section beginning on page 15.

It is usual for a utility to retrieve only a

subset of the data available in the database;

this is called point mapping.

The SCADA system accesses the RCU internal

database with a SCADA protocol and a long-

range radio or modem. Different SCADA

protocols have different capabilities and

methodologies. This manual deals with the

DNP3 protocol over the RCU serial data

connection.

The RCU implements the slave DNP3

protocol using industry standard libraries

provided by Triangle Microworks, Inc.

A subset level of the DNP3 protocol is

supported, which is defined in the DNP3

profile document RCU_DNP3_Profile_Rxx.

xml and is provided separately to this

manual. The profile is a formatted

document determined by the DNP3

committee.

This manual provides additional information

so the user can fully understand the

implementation of the DNP3 protocol on

this equipment, how the RCU internal

database is mapped into the serial DNP3

protocol, and the configuration options

available to the user.

The manual also deals with the settings for

the radio power supply and radio serial data

interface. The target reader of this manual is

already familiar with DNP3 and the user’s

SCADA system.

Introduction

Format and aim of the operating

instructions

These operating instructions apply for the

Siemens RCU.

The purpose of this instruction manual is to

assist the user in configuring the DNP3

protocol to work with the user’s SCADA

system.

In written or verbal communications, please

provide the complete description from the

operating instructions, quote the serial

number, and use only the designations and

key numbers for sub-parts used in these

locations.

Contact the nearest Siemens representative

if any additional information is desired.

Safety instructions

The RCU, together with the accessories and

special tools also supplied, is in conformity

with the statutory laws, rules, and standards

applicable at the time of delivery, especially

those regulations concerning health and

safety.

Signal words

The signal words “danger,” “warning” and

“caution” used in this manual indicate the

degree of hazard that may be encountered

by the user. These words are defined as:

Danger - Indicates an imminently hazardous

situation that, if not avoided, will result in

death or serious injury.

Warning - Indicates a potentially hazardous

situation that, if not avoided, could result in

death or serious injury.

Caution - Indicates a potentially hazardous

situation that, if not avoided, may result in

minor or moderate injury.

Notice - Indicates a potentially hazardous

situation that, if not avoided, may result in

property damage.

Field service operation and warranty

issues

Siemens can provide competent, well-

trained field service representatives to

provide technical guidance and advisory

assistance for the installation, overhaul,

repair and maintenance of Siemens

equipment, processes and systems. Contact

regional service centers, sales offices or the

factory for details, or telephone Siemens

field service at +1 (800) 347-6659 or +1

(919) 365-2200 outside the U.S.

Designated usage

The RCU is used to connect the Fusesaver

pole-mounted circuit breaker into a utility

SCADA system. Any other use is forbidden,

unless the consent of Siemens has been

obtained.

Changes to any part of the Remote Control Unit or

its accessories, that are carried out by the user or

others, and not previously agreed by Siemens, will

void the warranty of the whole product.

Compatibility

This version of the DNP3 protocol manual is

compatible with the following firmware and

software versions:

Application Applicable versions

RCU Firmware 100

Fusesaver Firmware 330-60

Communications

module Firmware 1537-75

Table 1: Compatibility

DNP3 points and

controls

Point mapping

RCU database digital and analog inputs can

be configured to suit the SCADA master

needs in a number of ways:

RCU database points can be mapped to

specific DNP3 point indices.

RCU database points can be unmapped,

in which case they will not appear in the

DNP3 point indices and will not be

available to the SCADA system.

For mapped points, the DNP3 class can

be set as described below.

Point mapping is especially useful when

trying to reduce the bandwidth

requirements over the SCADA network by

removing points that are deemed

unnecessary. This can be achieved by

mapping all required points to contiguous

DNP3 indices starting at index 0. Unwanted

points can then be left unmapped (i.e., not

mapped to any class), in which case they

will not be returned by integrity poll or

individual poll or will they generate

unsolicited messages.

Note that all point configuration is carried

out with the RCU Connect PC utility.

Class assignment

For all mapped points, the user can assign

DNP3 class 0, 1, 2, 3 or “None.”

Points with class “None” will not be returned

in an integrity poll. However, these points

can still be read by polling the specific data

type/point index for that point.

The advantage of setting class “None” is that

a point can still be scanned if required but

will not cause use of bandwidth in integrity

polls. The disadvantage is the potential

fragmentation of integrity polls.

Contiguous DNP3 indices

A DNP3 integrity poll will return all DNP3

points that have been mapped to the RCU

internal database and that have been

assigned to class 0, 1, 2 or 3. If the DNP3

mapping has gaps in the sequence of

indices caused either by an unmapped DNP3

index or by a mapped point being set to

class “None,” it will result in multiple DNP3

fragments being sent across the SCADA

network. This problem can be avoided by

mapping the class “None” points to the end

of the DNP3 index.

Point mapping example 1

This is a typical DNP3 mapping for the RCU

analog input points to reduce bandwidth

requirements by excluding some points and

keeping the DNP3 indices contiguous so

that an integrity poll will return DNP3

indexes 0 to 13 in a single message. The

points in grey are not mapped and cannot

be read.

Point mapping example 2

A similar mapping to above, but with

unwanted points mapped and assigned to

class “None” at the end of the DNP3 point

index. The unwanted points will not

generate events and will not be returned in

a status poll, but can still be read by issuing

a command to read that point or data type

directly. This mapping will reduce the

bandwidth requirements by the same

amount as the previous example, but the

unwanted points can still be read if

necessary.

Figure 1: Point mapping example 1

Figure 2: Point mapping example 2

Digital input point implementation

Digital points are DNP3 binary inputs (object

group 1) and binary input events (object

group 2).

Refer to the section on RCU internal

database and controls beginning on page 15

to understand how the status, events and

qualifiers for each point are generated.

Default input point mapping is DNP3 index =

RCU digital PID.

Analog input point implementation

Analog points are DNP3 analog inputs

(object group 30) and analog input events

(object group 32) for points that generate

events.

Refer to the section beginning on page 15

about RCU internal database and controls to

understand how the status, events and

qualifiers for each point are generated.

Default input point mapping is DNP3 index =

RCU analog PID.

Object flags

DNP3 object flags are generated as shown in

Table 2. Some object flags correspond to the

internal data qualifiers set out in the section

on RCU internal database and controls

beginning on page 15.

DNP3 device attributes

Device attributes (object group 0) come

from the RCU database string points defined

in the RCU operating instructions

(IC1000-F320-A198-X-XXXX).

Note that RCU string points are not

supported in DNP3 in any other way.

DNP3 device attributes are mapped into RCU

string points as given in Table 3.

Database object flags

DNP3 object flag Maps to

ONLINE RCU qualifier online

RESTART RCU qualifier restart

COMMS_LOST RCU qualifier

communications lost

REMOTE_FORCED Always clear

LOCAL_FORCED RCU qualifier overridden

CHATTER_FILTER Always clear

ROLLOVER Always clear

OVERRANGE Always clear

DISCONTINUITY Always clear

REFERENCE_ERROR Always clear

DNP3 device attributes

DNP3 device

attribute

Mapping in RCU internal

database

S_PID Name

252: device

manufacturer's

name

RCU

manufacturer’s

Name

250: device

manufacturer's

product name and

model

1RCU product name

and model

246: user assigned

ID code/number 2

Utility asset

number

(configurable)

245: user assigned

location name 3Name/location

(configurable)

242: device

manufacturer's

software version

4RCU software

version

Table 2: Object flags

Table 3: DNP3 device attributes

Controls

Controls are provided for all the control

points listed in the RCU operating

instructions (IC1000-F320-A198-X-XXXX) as

shown in the supported control options

Table 4. No protocol mapping of controls is

available, RCU control points (C_PIDs) map

directly to DNP3 control point indices.

Pulse times are ignored on all controls.

Time set is mapped to object group 50.

Supported control options

The following options are supported for the

RCU and Fusesaver controls.

No controls can be cancelled when running.

No event class is assigned to the controls.

Refer to RCU Operating Instructions

(IC1000-F320-A198-X-XXXX) for full

description of the control.

When supported, trip, pulse off and latch off

commands may be used interchangeably to

perform the same control.

When supported, close, pulse on and latch

on commands may be used interchangeably

to perform the same control.

DNP3

point

index

RCU

control

point

(C_PID)

Control name

Supported control options

Select/

operate

Direct

operate

Direct

operate

- no ack

Pulse

off Close Trip Latch

Latch

off

0 0 Clear protocol counters Yes Yes Yes Yes Yes Yes

1 1 Trip/close ganged Yes Yes Yes Yes Yes Yes Yes Yes Yes

2 2 Trip/close any Yes Yes Yes Yes Yes Yes Yes Yes Yes

3 3 Phase A trip/close Yes Yes Yes Yes Yes Yes Yes Yes Yes

4 4 Phase B trip/close Yes Yes Yes Yes Yes Yes Yes Yes Yes

5 5 Phase C trip/close Yes Yes Yes Yes Yes Yes Yes Yes Yes

6 6 RCU dummy control Yes Yes Yes Yes Yes Yes Yes Yes Yes

7 7 Fusesaver dummy Yes Yes Yes Yes Yes Yes Yes Yes Yes

8 8 RCU clear flags Yes Yes Yes Yes Yes Yes

9 9 Set protection mode - normal Yes Yes Yes Yes Yes Yes

10 10 Set protection mode - single

shot Yes Yes Yes Yes Yes Yes

11 11 Set protection mode - off Yes Yes Yes Yes Yes Yes

12 12 Set remote mode - no reclose Yes Yes Yes Yes Yes Yes

13 13 RCU reboot Yes Yes Yes Yes Yes Yes

14 14 Set remote mode - fast Yes Yes Yes Yes Yes Yes

15 15 Set/clear “protection off” Yes Yes Yes Yes Yes Yes Yes Yes Yes

16 16 Set/clear “instantaneous

protection” bit Yes Yes Yes Yes Yes Yes Yes Yes Yes

17 17 Set/clear “no reclose

protection bit” Yes Yes Yes Yes Yes Yes Yes Yes Yes

18 18 RCU primary test mode Yes Yes Yes Yes Yes Yes Yes Yes Yes

Table 4: Supported control options

Control response codes

Available response codes are given in Table

5, which shows which codes are supported

and where appropriate details the RCU

internal database response code utilized.

Otherwise the response code is as per the

DNP3 specification in IEEE Std. 1815-2012.

Where the table shows that the response

code is not supported, it means that this

code is never returned to the master station.

DNP3 internal indicator bits

DNP3 internal indicator bits are set as

follows:

Config_corrupt is set by the RCU

Configuration Error point D_PID 5

Local_control is set by the RCU Remote

Control Enabled point D_PID 101

Device_trouble never gets set by RCU.

DNP3 control response codes

DNP3 response code Supported Relevant RCU internal response code

SUCCESS Yes SUCCESS

TIMEOUT Yes

NO_SELECT Yes

FORMAT_ERROR Yes

NOT_SUPPORTED Yes

ALREADY_ACTIVE Yes ALREADY_ACTIVE

HARDWARE_ERROR Yes COMMS_LOST or NOT_CONFIGURED

LOCAL Yes REMOTE_CONTROL_OFF or IN_SESSION or LEVER_DOWN

TOO_MANY_OBJS Yes

NOT_AUTHORIZED No

AUTOMATION_INHIBIT No

PROCESSING_LIMITED No

OUT_OF_RANGE No

RESERVED No

NON_PARTICIPATING Yes

UNDEFINED Yes

Table 5: DNP3 control response codes

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