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

4
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.

5
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 [phone] or +1
[phone] 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

6
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.

7
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

8
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
0
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

9
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
on
Pulse
off Close Trip Latch
on
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

10
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