URC Smart 1-Line User manual

Smart 1-LineTM Instruction Manual Rev 1.01 www.utilityrelay.com
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Manual Revision 1.01 –June 2019
Table of Contents
Section: Page
1.0 Introduction and Overview..................................................................................... 4
1.1 Typical System Diagrams................................................................................5
1.1.1 RS-485 Direct Connection...................................................................... 5
1.1.2 External RS-485-to-Ethernet Modbus Gateway (optional).....................6
1.1.3 Local Smart 1-Line + Remote Smart 1-Line...........................................6
1.2 Items Included.................................................................................................. 7
1.3 Accessories...................................................................................................... 7
1.4 Warnings.......................................................................................................... 7
2.0 Installation ............................................................................................................... 8
2.1 Mounting .......................................................................................................... 8
2.2 Connections ..................................................................................................... 8
2.3 RS-485 Network............................................................................................... 9
2.3.1 Cable and Lengths ................................................................................. 9
2.3.2 Termination circuits ................................................................................9
2.4 Ethernet (optional)............................................................................................ 9
2.4.1 External RS-485-to-Ethernet Gateway/Server....................................... 9
2.4.2 Modbus TCP communications to other systems..................................10
3.0 Setup and Configuration ...................................................................................... 10
3.1 Powering On ..................................................................................................10
3.1.1 Logging into Windows ..........................................................................10
3.1.2 Designer Mode.....................................................................................11
3.1.2.1 Designer Mode Password......................................................11
3.1.2.2 Drawing your 1-Line...............................................................11
3.1.2.3 Adding items..........................................................................11
3.1.2.4 Rotating items........................................................................11
3.1.2.5 Removing items.....................................................................11
3.1.2.6 Power Distribution System Changes .....................................11
3.1.2.7 Designer Mode Toolbar .........................................................12
3.1.2.8 Smart 1-Line Settings ............................................................14
3.1.2.9 Modbus Settings....................................................................14
3.1.2.10 Timing Settings ....................................................................16
3.1.2.11 Modbus Server Settings ......................................................17
3.1.2.12 Preferences Settings ...........................................................18
3.1.2.13 User Logo ............................................................................18
3.1.2.14 Diagnostics (settings) ..........................................................19
3.1.3 Trip Unit Settings..................................................................................20
3.1.3.1 AC-PRO-II Device Settings....................................................20
3.1.3.2 AC-PRO Device Settings.......................................................20
4.0 Operation ............................................................................................................... 21
4.1 Run Mode.......................................................................................................21
4.1.1 Breaker Block.......................................................................................22
4.1.2 Detailed Breaker Data..........................................................................23
4.1.2.1 Readings tab (AC-PRO-II only) .............................................24
4.1.2.2 Tripping a Breaker: ................................................................26
4.1.2.3 Waveforms tab (AC-PRO-II only, FW v2.0.27 or higher).......27
4.1.2.4 Trip History tab (AC-PRO-II only)..........................................28
4.1.2.5 Settings tab (AC-PRO-II only)................................................29
4.1.2.6 TCC/Tests tab (AC-PRO-II only) ...........................................30
4.1.2.7 AC-PRO tab (includes Readings, Settings, Last Trip)...........31
4.1.2.8 Breaker Tests tab...................................................................32
4.1.2.9 Trip Unit Tests tab..................................................................33
4.1.3 Transformer..........................................................................................33

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4.1.4 Bus .......................................................................................................34
4.1.5 Description Box ....................................................................................34
4.1.6 Voltage data block................................................................................34
4.1.7 Power data block..................................................................................34
4.1.8 Energy data block.................................................................................35
4.1.9 Trip unit icons.......................................................................................35
4.1.10Communications Status Box ...............................................................36
4.1.11Designer Mode button .........................................................................36
4.1.12Help button ..........................................................................................36
5.0 Software and Firmware......................................................................................... 37
5.1 Features by product & version....................................................................... 37
6.0 System performance & speed..............................................................................38
6.1 Smart 1-Line Settings.....................................................................................38
6.2 Baud Rate ...................................................................................................... 38
6.3 Power state of AC-PRO-II and/or AC-PRO trip units.....................................38
7.0 General and PC Items........................................................................................... 38
7.1 Operating System ..........................................................................................39
7.2 Internet and/or Server Connections............................................................... 39
7.3 PC & Windows Settings.................................................................................39
7.3.1 Windows Accounts and Passwords .....................................................39
7.3.1.1 “Smart 1-Line” user account ..................................................39
7.3.1.2 “Administrator” account..........................................................39
7.3.2 Screen Timeout and Brightness settings .............................................40
7.4 Other applications..........................................................................................40
7.5 Other Modbus devices...................................................................................40
7.6 Panel PC Specifications.................................................................................41
7.7 Warranty.........................................................................................................41
7.8 Software updates...........................................................................................41
7.9 Troubleshooting .............................................................................................42
7.10 General Troubleshooting items......................................................................42
7.11 Getting Logs................................................................................................... 42

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Table of Figures
Figure 1: Smart 1-Line with 1-Line screen example...................................................4
Figure 2: Typical Diagram #1: RS-485 Direct (Modbus RTU)....................................5
Figure 3: Typical Diagram #2: External Modbus Gateway (Modbus TCP)...............6
Figure 4: Typical Diagram #3: Local Smart 1-Line + Remote Smart 1-Line.............6
Figure 5: VESA Mounting holes...................................................................................8
Figure 6: Rear Connections..........................................................................................8
Figure 7: Typical RS-485 Network Wiring Diagram....................................................9
Figure 8: RS-485 Maximum Recommended Cable Lengths......................................9
Figure 9: Designer Mode Button................................................................................10
Figure 10: Designer Mode Password.........................................................................11
Figure 11: Designer Mode Toolbar ............................................................................12
Figure 12: Designer Mode 1-Line Drawing example ................................................13
Figure 13: Settings Menu............................................................................................14
Figure 14: Modbus Settings - Example for RS-485 Direct Connection..................15
Figure 15: Modbus Settings - Example for External Gateway connection............15
Figure 16: Timing Settings..........................................................................................16
Figure 17: Modbus Server Settings ...........................................................................17
Figure 18: Preferences Settings.................................................................................18
Figure 19: Browse to Customer Logo Window ........................................................18
Figure 20: Diagnostics (settings)...............................................................................19
Figure 21: Run Mode 1-Line Diagram example ........................................................21
Figure 22: Breaker Block: example states................................................................22
Figure 23: Breaker symbol - area to tap....................................................................23
Figure 24: Breaker Data Window General Layout....................................................23
Figure 25: Readings Tab (AC-PRO-II only)................................................................25
Figure 26: Trip Breaker steps.....................................................................................26
Figure 27: Waveforms Tab (AC-PRO-II only) ............................................................27
Figure 28: Trip History Tab (AC-PRO-II only) ...........................................................28
Figure 29: Settings Tab (AC-PRO-II only)..................................................................29
Figure 30: TCC/Tests Tab (AC-PRO-II only)..............................................................30
Figure 31: AC-PRO Tab...............................................................................................31
Figure 32: Breaker Tests Tab .....................................................................................32
Figure 33: Trip Unit Tests Tab....................................................................................33
Figure 34: Communications Status Box ...................................................................36

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Based on a rugged, fanless, touch screen industrial computer with a solid state drive and a 21.5"
high-definition touchscreen, the Smart 1-Line™ is URC's modern turn-key solution for monitoring
your AC-PRO-II®and AC-PRO®networks at one convenient location. It displays a field-configurable
electronic 1-Line diagram with breaker readings, status, and more. Simply tapping (clicking) a
breaker symbol provides additional details and information.
The Smart 1-Line™ features include:
•Turn-keysolution for monitoring URC products via Modbus communications
•Monitor Current, Voltage, Power, Energy, Breaker status, Waveforms*, Alarms, and more
•Industrial PC with High Definition 21.5" Color Touch Screen, Solid State Drive, no moving
parts (no cooling fans, etc)
•Software Pre-Installed
•Field Configurable Electronic 1-Line Diagram
•Remote Breaker Tripping
•View Time Current Curves* and Test Data
•Wall Mount Design for Switchgear or Control Room
(mount can be supplied by URC or Customer)
•RS-485 Communications to AC-PRO & AC-PRO-II
•Ethernet Port for Modbus TCP communications from external gateway,
or to separate system
•Smart 1-Line will provide the most features, highest communications speeds, and most
future capability when used with AC-PRO-II with VDM (Voltage Divider Module) trip units.
•Refer to Section 5 for additional features details.
*Feature available forAC-PRO-II only. See Section5 for specific firmware versions.
Figure 1: Smart 1-Line with 1-Line screen example
1.0 Introduction and Overview

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The Smart 1-Line can communicate with the network of trip units using a direct RS-485 connection,
or via an Ethernet connection from a customer-supplied External RS-485-to-Ethernet Modbus
Gateway.
1.1.1 RS-485 Direct Connection
The standard method for connecting trip units to the Smart 1-Line is a Direct RS-485 connection to
the serial port on the Smart 1-Line. See the figure below for an example. See Section 3 for Settings.
Figure 2: Typical Diagram #1: RS-485 Direct (Modbus RTU)
1.1 Typical System Diagrams

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1.1.2 External RS-485-to-Ethernet Modbus Gateway (optional)
Figure 3: Typical Diagram #2: External Modbus Gateway (Modbus TCP)
1.1.3 Local Smart 1-Line + Remote Smart 1-Line
Figure 4: Typical Diagram #3: Local Smart 1-Line + Remote Smart 1-Line

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•Smart 1-Line Touchscreen Panel PC with software pre-loaded
•120VAC to 12-24V Power Supply
•RS-485 cable with DB9 connector (3 ft. length) (URC part #CA-10-100)
•RS-485 terminal block (URC part #T-119) with mounting hardware & ring terminals
•Wall mount can be supplied by URC or by Customer
•USB Keyboard and mouse (customer supplied) are recommended for convenience for initial
setup, but not required for normal operation. Any standard USB keyboard and
mouse/pointing device should be compatible. See below for some items URC has used
successfully.
•Mounting: See Section 2 for mounting information and options.
•Some examples if items URC has used along with the Smart 1-Line:
oUSB keyboard (IP 65 washable): Perixx PERIBOARD-517 (available on
Amazon.com)
oUSB mouse: Adesso iMouseW3 Waterproof with Magnetic Scroll Wheel (available
on Amazon.com)
oHeavy-duty Industrial Keyboard/Mouse folding shelf: RackSolutions Full Keyboard
Wallmount (available on Amazon.com)
oUSB hubs & extenders: Sabrent USB hubs and extenders (available on
Amazon.com)
WARNING!
1. The Smart 1-Line information should not be exclusively relied on for situations that are critical to
human safety and/or prevention of damage to equipment. All conditions shall be verified by
separate means.
2. The Smart 1-Line MUST be updated if power distribution system changes occur. Examples are
replacing breakers, exchanging breakers, new breakers or loads, switchgear modifications, etc.
For example, if breakers are exchanged, trip unit addresses, breaker names, load descriptions,
etc. must be reviewed and changed accordingly.
1.2 Items Included
1.3 Accessories
1.4 Warnings

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Mounting hardware can be supplied by URC or by the Customer.
The Smart 1-Line is designed for surface wall-mounting, using its standard 100mm x 100mm VESA
hole pattern.
Figure 5: VESA Mounting holes
Any heavy duty VESA 100mm x 100mm capable of supporting 30 lbs can be used.
(The Panel PC weighs approximately 15 lbs).
If specified, URC can supply the Panel PC OEM wall mount kit along with the Smart 1-Line.
Contact URC for additional information.
Figure 6: Rear Connections
2.0 Installation
2.1 Mounting
2.2 Connections

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Trip units are “daisy-chained” using a twisted-shielded cable as shown in the example diagram
below.
Figure 7: Typical RS-485 Network Wiring Diagram
2.3.1 Cable and Lengths
A Belden #9463 cable or equivalent can be used for the twisted shielded pair cable.
Refer to the table below for maximum recommended cable lengths:
Baud Rate
9600
19200
38400
57600
115200
Maximum
Cable length
4000 ft
4000 ft
4000 ft
2000 ft
1000 ft
Trip Units
AC-PRO or
AC-PRO-II
AC-PRO-II ONLY
Note: communications success with maximum lengths mayvary depending on the environment.
Figure 8: RS-485 Maximum Recommended Cable Lengths
Note: the above maximum lengths are based on URC testing of direct RS-485 connection to
The Smart 1-Line.
2.3.2 Termination circuits
URC does NOT recommend “typical” RS-485 external “R” or “RC” termination circuits for use with
AC-PRO-II and AC-PRO RS-485 wiring.
The AC-PRO-II features an internal termination network, which can be switched ON or OFF via a
front accessible switch. This switch should be in the ON position for the “last” AC-PRO-II in the
“loop” (RS-485 network). The switch should be in the OFF position for all other trip units in the loop
(RS-485 network).
2.4.1 External RS-485-to-Ethernet Gateway/Server
If an external customer-supplied RS-485-to-Ethernet Modbus Gateway/Server is utilized, it must be
configured to work with the Smart 1-Line.
2.3 RS-485 Network
2.4 Ethernet (optional)

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Though most of these gateways are standard “off-the-shelf” products that should work well, each
product is different and URC cannot guarantee the Smart 1-Line will work with all gateways.
Please contact URC with questions about external RS-485-to-Ethernet Gateways.
URC has used and tested the following products successfully with the Smart 1-Line:
•Moxa MGate MB3180
•Lantronix XPRESS DR
If using an external RS-485-to-Ethernet Modbus Gateway/Server, it must be configured with the
following settings:
•Modbus TCP Exception should be Disabled
•Response Timeout should be set to a shorter duration than the Smart 1-Line “Trip Unit
Response Timeout” setting.
2.4.2 Modbus TCP communications to other systems
When the RS-485 network is wired directly to the Smart 1-Line, the Smart 1-Line can act as a
“Modbus server” to other systems (“clients”).
Requirements for using the Smart 1-Line as a “Modbus server” to other systems:
•“Other systems” must be capable of Modbus communications
•“Other systems” must have drivers for AC-PRO-II and/or AC-PRO. A “driver” is simply
application programming that enables the system to correctlyinterpret the AC-PRO-II or
AC-PRO Register Map.
•Smart 1-Line “Modbus Server Settings” must be configured properly.
See Section 3 of this manual.
Ensure the included Power supply is connected to a reliable 120VAC source, and that the power
supply is also connected to the Panel PC.
Press the Power button to turn on the Smart 1-Line.
3.1.1 Logging into Windows
After Powering the Smart 1-Line, or after a screen timeout, you will be prompted for your Windows
Username and Password.
If logging intoWindows for the first time, use the Smart 1-Line User account Username and
password provided byURC.
URC recommends changing the Smart 1-Line User account password. To change your
Smart 1-Line password, you must log into the Administrative account. See Section 7.
After logging in, the Smart 1-Line application will start automatically.
After the Smart 1-Line application starts, click or tap the “Designer” button in the bottom right corner
to start creating your 1-Line in Designer Mode.
Figure 9: Designer Mode Button
3.0 Setup and Configuration
3.1 Powering On

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3.1.2 Designer Mode
3.1.2.1 Designer Mode Password
After clicking the “Designer” button, you will be prompted for the Designer Mode password.
Use the password provided byURC.
To change your password, check the Change Password box, and you will be prompted
to follow the instructions.
Figure 10: Designer Mode Password
3.1.2.2 Drawing your 1-Line
After entering the Designer Mode password, you can start building or editing your 1-line diagram.
If you are entering Designer Mode for the first time, the drawing area will be blank.
The Designer Mode toolbar contains all of the items and settings required to setup your system.
3.1.2.3 Adding items
In Designer Mode: To add items to your Smart 1-Line, simply tap or click an item in the toolbar, and
then tap or click in the drawing area.
3.1.2.4 Rotating items
In Designer Mode:
The Breaker and Transformer items can be rotated 90 degrees by double-tapping or double-clicking.
The Bus items can be stretched and rotated using the “grips” on each end of the line.
3.1.2.5 Removing items
In Designer Mode:
Items can be removed by dragging them off the screen to the right.
3.1.2.6 Power Distribution System Changes
The Smart 1-Line MUST be updated if power distribution system changes occur. Examples are
replacing breakers, exchanging breakers, new breakers or loads, switchgear modifications, etc. For
example, if breakers are exchanged, trip unit addresses,breaker names, load descriptions, etc. must
be reviewed and changed accordingly.
In addition, if breakers are known to be out of service for an extended period, temporarilyclear the
Smart 1-Line address fields for those breakers, or temporarily remove those breakers from the Smart
1-line drawing. The reason for this is: if these breakers/addresses are left in the Smart 1-Line
drawing, then the Smart 1-Line will try to communicate with these units. The communications
system performance is slowed down when the Smart 1-Line attempts to communicate with units that
are out of service and not responding.

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3.1.2.7 Designer Mode Toolbar
Using the Designer Mode toolbar, simply click or tap on the symbol/item you want to add, and then
click or tap at the location where you want to add it.
After items are added to your drawing, they can easily be moved around byclicking or tapping on the
item, and then dragging to the desired location.
Figure 11: Designer Mode Toolbar

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Figure 12: Designer Mode 1-Line Drawing example

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3.1.2.8 Smart 1-Line Settings
The Smart 1-Line ships with “default” settings.
For most installations, only some Smart 1-Line settings will need to be re-configured.
The Smart 1-Line settings can be accessed by using the Designer Mode Toolbar. See Figure 12.
Tap or click the Settings button. This will launch the following Smart 1-Line settings menu.
Figure 13: Settings Menu
3.1.2.9 Modbus Settings
Tap or click the “Modbus” button to access the Modbus Configuration settings.
There are two possible methods for connecting trip units to the Smart 1-Line.
Refer to Figures 14 and 15.
Select “Modbus RTU” and “COM2” if your trip unit RS-485 network connects directly to the
Smart 1-Line Serial port. (See Figure 2). See example setting window below.
Select the “Baud rate”.
IMPORTANT: The Baud rate setting on the Smart 1-Line and ALL of the trip units MUST be set to
the same Baud Rate.
NOTE: If anyAC-PRO trip units are connected to the RS-485 network, then the Smart 1-Line and
ALL trip units must be set to 9600. (the AC-PRO baud rate is fixed at 9600).
Select the “Parity” to match the trip unit settings. The Paritysetting on the Smart 1-Line and all of the
trip units MUST be set to the same setting.

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Figure 14: Modbus Settings - Example for RS-485 Direct Connection
Select “Modbus TCP” if your trip unit R-485 network connects to an external Ethernet gateway.
(See Figure 3) See example setting window below.
Enter either the Server name or the IP address of the external Ethernet gateway device.
Enter the Modbus port of the external Ethernet gateway device.
Figure 15: Modbus Settings - Example for External Gateway connection

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3.1.2.10 Timing Settings
URC recommends using the default Timing Settings unless changes are necessary due to the
presence of multiple clients or systems.
If desired or needed for external communications, the Timing settings can be adjusted. This is
typically only necessary if additional systems will be connected to the Smart 1-Line. Otherwise, the
recommended default settings are shown below.
NOTE: Improper adjustment of Timing Settings can result in communications issues.
Scan Period:
Adjusts how frequently the Smart 1-Line requests data from each trip unit. For example, if this
setting is set to 10 seconds, the information for each breaker will be requested (and should be
updated) every 10 seconds.
Trip Unit Response Timeout:
Adjusts how long the Smart 1-Line will wait for a replyfrom each trip unit.
Number of Retries per Request:
Adjusts how manytimes the Smart 1-Line will retry a data request before determining that the trip
unit is not responding.
If Trip Unit Does Not Respond:
Scan Periods to Stop Trying:
Adjusts how manyconsecutive unsuccessful scan periods can occur before the Smart 1-Line will
temporarilystop making requests to a trip unit.
Resume Trying After:
Applies after the above number of “Scan Periods to Stop Trying” has been met. Adjusts the duration
after which the Smart 1-Line will re-attempt requests to a trip unit.
Figure 16: Timing Settings

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3.1.2.11 Modbus Server Settings
These settings only need to be adjusted if the Smart 1-Line will provide Modbus data to other
equipment or systems. Otherwise, the default settings should be used.
If the trip units are connected to the Smart 1-Line via RS-485, the Smart 1-Line can serve data to
“other systems”, via its internal Modbus Server application. If “other systems” will obtain data from
the Smart 1-Line, the Modbus Server settings will need to be changed.
Max Number of Clients:
This setting determines the maximum number of “clients” that will be allowed to request data from
the Modbus Server. Internally, the Smart 1-Line has 2 clients, and thus the minimum (and default)
setting is 2. If “other systems” will be obtaining data from the Smart 1-Line, the number needs to be
incremented for each additional system.
If a “local” and a “remote” Smart 1-Line will be connected to the same system,
this setting should be 4.
Max Number of Queued Messages:
This is an advanced setting. The Modbus Server receives messages from Modbus Clients and
sends them to Trip Units over RS485. If a new message from a client is received before a Trip Unit
responds, it’s queued and, after the Trip Unit response (or timeout), sent to a Trip Unit. Modbus
Server can queue up to “Max Number of Queued Messages”. After that, new messages from
Modbus Clients are ignored.
Modbus Port:
This is an advanced setting. Well-known TCP port 502 is reserved for the Modbus Application
Protocol. Avoid any other well-known ports. Make sure there are no conflicts if using a port other
than 502. Refer to “Service Name and Transport Protocol Port Number Registry” at
https://www.iana.org/assignments/service-names-port-numbers/service-names-port-
numbers.xhtml and RFC6335 at
https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml
Trip Unit Response Timeout:
Adjusts how long the Modbus Server will wait for a reply from each trip unit.
Figure 17: Modbus Server Settings

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3.1.2.12 Preferences Settings
If this box is checked, the breakers and items will change to Red if the breaker or associated breaker
is closed and/or if current is flowing.
If this box is not checked, the breakers and items will not turn Red, regardless of breaker position
and current.
Figure 18: Preferences Settings
3.1.2.13 User Logo
If desired, a Logo image file can be imported and can appear in the upper right corner of the Smart
1-Line when it is in Run Mode. The image file format can be .png, .jpg, .gif, or .bmp. One example
logo size (resolution) is 280 x 80. This size allows for a legible logo, but does not take up too much
room on the Smart 1-Line screen. However, any size logo can be used. For reference &
consideration, the entire Smart 1-Line screen is 1920 x 1080. Hence, a 1920 x 1080 logo would use
up the whole screen, making zero 1-Line items visible. See Figure 20 for an example that shows a
logo in the upper right corner.
Figure 19: Browse to Customer Logo Window