SMA COMGW-10 User manual

SUNNY BOY
SMA COM GATEWAY
SMA
- +
10 - 30V
DC
X1
RS485
RS485
COMGW-10-IA-en-13 | Version 1.3ENGLISH
Installation Manual
SMACOM GATEWAY

Legal Provisions SMA Solar Technology AG
Installation ManualCOMGW-10-IA-en-132
Legal Provisions
The information contained in these documents is the property of SMA Solar Technology AG. No
part of this document may be reproduced, stored in a retrieval system, or transmitted, in any form or
by any means, be it electronic, mechanical, photographic, magnetic or otherwise, without the prior
written permission of SMA Solar Technology AG. Internal reproduction used solely for the purpose
of product evaluation or other proper use is allowed and does not require prior approval.
SMA Solar Technology AG makes no representations or warranties, express or implied, with
respect to this documentation or any of the equipment and/or software it may describe, including
(with no limitation) any implied warranties of utility, merchantability, or fitness for any particular
purpose. All such representations or warranties are expressly disclaimed. Neither SMA Solar
Technology AG nor its distributors or dealers shall be liable for any indirect, incidental, or
consequential damages under any circumstances.
The exclusion of implied warranties may not apply in all cases under some statutes, and thus the
above exclusion may not apply.
Specifications are subject to change without notice. Every attempt has been made to make this
document complete, accurate and up-to-date. Readers are cautioned, however, that product
improvements and field usage experience may cause SMA Solar Technology AG to make changes
to these specifications without advance notice, or per contract provisions in those cases where a
supply agreement requires advance notice. SMA Solar Technology AG shall not be responsible for
any damages, including indirect, incidental or consequential damages, caused by reliance on the
material presented, including, but not limited to, omissions, typographical errors, arithmetical errors
or listing errors in the content material.
SMA Warranty
You can download the current warranty conditions from the Internet at www.SMA-Solar.com.
Software licenses
You will find the software licenses for the installed software modules on the Internet at www.SMA-
Solar.com.
Trademarks
All trademarks are recognized, even if not explicitly identified as such. Missing designations do not
mean that a product or brand is not a registered trademark.
SMA Solar Technology AG
Sonnenallee 1
34266 Niestetal
Germany
Tel. [phone]
Fax [phone]
www.SMA.de
Email: [email protected]
Status: 9/26/2018
Copyright © 2018 SMA Solar Technology AG. All rights reserved.

Table of Contents
SMA Solar Technology AG
Installation Manual COMGW-10-IA-en-13 3
Table of Contents
1 Information on this Document................................................. 5
1.1 Validity........................................................................................................................ 5
1.2 Target Group.............................................................................................................. 5
1.3 Content and Structure of this Document ................................................................... 5
1.4 Levels of warning messages...................................................................................... 5
1.5 Symbols in the Document .......................................................................................... 6
1.6 Typographies in the document.................................................................................. 6
1.7 Designation in the document..................................................................................... 6
1.8 Additional Information............................................................................................... 6
2 Safety ........................................................................................ 8
2.1 Intended Use .............................................................................................................. 8
2.2 IMPORTANT SAFETY INSTRUCTIONS.................................................................... 8
3 Scope of Delivery ..................................................................... 10
4 Product Overview .................................................................... 11
4.1 SMA Com Gateway.................................................................................................. 11
4.2 LED Signals................................................................................................................. 13
4.3 Function Button........................................................................................................... 14
5 Mounting................................................................................... 15
5.1 Requirements for Mounting ....................................................................................... 15
5.2 Mounting the SMA Com Gateway........................................................................... 16
6 Connection ................................................................................ 19
6.1 Overview of the Connection Area............................................................................ 19
6.2 Connecting RS485 Devices....................................................................................... 19
6.3 Connecting the SMA Data Logger ........................................................................... 21
6.4 Connecting the Voltage Supply ................................................................................ 22
7 Commissioning ......................................................................... 25
7.1 Commissioning the SMA Com Gateway ................................................................. 25
7.2 Configuring the SMA Com Gateway....................................................................... 25
8 Troubleshooting........................................................................ 26
8.1 Updating the Firmware.............................................................................................. 28
9 Decommissioning the SMA Com Gateway............................ 30

Table of Contents SMA Solar Technology AG
Installation ManualCOMGW-10-IA-en-134
10 Technical Data .......................................................................... 31
11 Contact ...................................................................................... 32
12 EU Declaration of Conformity ................................................. 34

1 Information on this Document
SMA Solar Technology AG
Installation Manual COMGW-10-IA-en-13 5
1 Information on this Document
1.1 Validity
This document is valid for:
• COMGW-10 (SMA Com Gateway) from firmware version 1.00.01
1.2 Target Group
The tasks described in this document must only be performed by qualified persons. Qualified
persons must have the following skills:
• Training in the installation and configuration of IT systems
• Knowledge of how an inverter works and is operated
• Training in how to deal with the dangers and risks associated with installing, repairing and
using electrical devices and installations
• Training in the installation and commissioning of electrical devices and installations
• Knowledge of all applicable laws, standards and directives
• Knowledge of and compliance with this document and all safety information
1.3 Content and Structure of this Document
This document describes the installation, commissioning and decommissioning of the product.
You will find the latest version of this document and further information on the product in PDF format
at www.SMA-Solar.com.
Illustrations in this document are reduced to the essential information and may deviate from the real
product.
1.4 Levels of warning messages
The following levels of warning messages may occur when handling the product.
DANGER
Indicates a hazardous situation which, if not avoided, will result in death or serious injury.
WARNING
Indicates a hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION
Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
NOTICE
Indicates a situation which, if not avoided, can result in property damage.

1 Information on this Document SMA Solar Technology AG
Installation ManualCOMGW-10-IA-en-136
1.5 Symbols in the Document
Symbol Explanation
Information that is important for a specific topic or goal, but is not safety-rele-
vant
☐
Indicates a requirement for meeting a specific goal
☑
Desired result
✖
A problem that might occur
Example
1.6 Typographies in the document
Typography Use Example
bold • Messages
• Terminals
• Elements on a user interface
• Elements to be selected
• Elements to be entered
• Connect the insulated
conductors to the terminals
X703:1 to X703:6.
• Enter 10 in the field
Minutes.
>• Connects several elements to be
selected • Select Settings > Date.
[Button]
[Key]
• Button or key to be selected or
pressed • Select [Enter].
1.7 Designation in the document
Complete designation Designation in this document
SMA Com Gateway SMAComGateway, product
SMA Speedwire fieldbus SMA Speedwire network, Speedwire
1.8 Additional Information
Title and information content Type of information
"PUBLIC CYBER SECURITY - Guidelines for a Secure PV System
Communication" Technical information
"RS485 Cabling Plan" Installation Manual
"SMA CLUSTER CONTROLLER" Installation Manual
"SMA CLUSTER CONTROLLER" User Manual

1 Information on this Document
SMA Solar Technology AG
Installation Manual COMGW-10-IA-en-13 7
Title and information content Type of information
"SMA COM GATEWAY - Compatibility and Application Options" Technical Information
"SMA DATA MANAGER M with SUNNY PORTAL powered by en-
nexOS" Operating manual
"SMASPEEDWIRE FIELDBUS" Technical information

2 Safety SMA Solar Technology AG
Installation ManualCOMGW-10-IA-en-138
2 Safety
2.1 Intended Use
The SMA Com Gateway is a media and protocol converter that integrates PV systems and
components connected with each other via RS485 into the SMA Speedwire network.
In connection with a SMA data logger, the SMA Com Gateway must be operated with Speedwire
(e.g. SMA Data Manager M, SMAClusterController). The system data of all detected RS485
devices is forwarded from SMA Com Gateway via Speedwire to the SMA data logger. At the
same time, the SMA Com Gateway supports communication with up to 50 RS485 devices.
The USB interface of the SMA Com Gateway may only be used for firmware updates.
The product is designed for indoor use only.
All components must remain within their permitted operating ranges and their installation
requirements at all times.
Use this product only in accordance with the information provided in the enclosed documentation
and with the locally applicable laws, regulations, standards and directives. Any other application
may cause personal injury or property damage.
Alterations to the product, e.g. changes or modifications, are only permitted with the express written
permission of SMA Solar Technology AG. Unauthorized alterations will void guarantee and
warranty claims and in most cases terminate the operating license. SMA Solar Technology AG
shall not be held liable for any damage caused by such changes.
Any use of the product other than that described in the Intended Use section does not qualify as the
intended use.
The enclosed documentation is an integral part of this product. Keep the documentation in a
convenient place for future reference and observe all instructions contained therein.
This document does not replace and is not intended to replace any local, state, provincial, federal
or national laws, regulations or codes applicable to the installation, electrical safety and use of the
product. SMA Solar Technology AG assumes no responsibility for the compliance or non-
compliance with such laws or codes in connection with the installation of the product.
The type label must remain permanently attached to the product.
2.2 IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This section contains safety information that must be observed at all times when working on or with
the product.
The product has been designed and tested in accordance with international safety requirements. As
with all electrical or electronical devices, there are residual risks despite careful construction. To
prevent personal injury and property damage and to ensure long-term operation of the product,
read this section carefully and observe all safety information at all times.

2 Safety
SMA Solar Technology AG
Installation Manual COMGW-10-IA-en-13 9
WARNING
Danger to life due to electric shock
Under fault conditions, when working on the power supply circuit there may be dangerous
voltages present on the product.
• With permanently connected power supply units, ensure that there is a disconnection unit
(e.g. circuit breaker) present outside of the power supply unit.
• With pluggable power supply units, ensure that the outlet for the power supply unit is close
to the power supply unit.
• The disconnect unit and the outlet for the power supply unit must be freely accessible at all
times.
WARNING
Danger to life due to electric shock from touching a damaged or open power
supply unit
Lethal voltages are present in the conductive parts inside the power supply unit. Touching a
damaged or open power supply unit can cause a lethal electric shock.
• Only use the power supply unit indoors and in a dry environment; keep it away from liquids.
• If the enclosure or the power supply unit cable is damaged, disconnect the connection point
from voltage sources. Replace the power supply unit with a suitable new power supply unit.
• Never open the power supply unit.
WARNING
Danger of fire due to incorrect installation
• Have the product mounted, installed and commissioned only by qualified persons with the
appropriate skills.
• Never open the product.
NOTICE
Damage to the product due to moisture
The product is not splash-proof. Moisture can penetrate the product and damage it.
• Only use the product in a dry, indoor environment.
NOTICE
Damage to the product due to condensation
If the product is moved from a cold environment to a warm environment, condensation may form
in the product.
• When there is a large temperature difference, wait for the product to reach room
temperature before connecting to the voltage supply.
• Make sure the product is dry.

3 Scope of Delivery SMA Solar Technology AG
Installation ManualCOMGW-10-IA-en-1310
3 Scope of Delivery
Check the scope of delivery for completeness and any externally visible damage. Contact your
distributor if the scope of delivery is incomplete or damaged.
SMA COMGATEWAY
- +
10 - 30V
DC
X1
RS485
RS485
SMA
AC
BDD
Figure 1: Components included in the scope of delivery
Position Quantity Designation
A 1 SMA Com Gateway
B 1 Two-pole plug
C 1 Six-pole plug
D 1 Quick Reference Guide

4 Product Overview
SMA Solar Technology AG
Installation Manual COMGW-10-IA-en-13 11
4 Product Overview
4.1 SMA Com Gateway
The SMA Com Gateway is a media and protocol converter that integrates PV systems and
components connected with each other via RS485 into the SMA Speedwire network.
The main tasks of the SMAComGateway are:
• Communication with up to 50 participants of an RS485 bus
• Reading off, storing and making system data available to an SMADataLogger
• Forwarding parameters from the SMADataLogger to the connected RS485 devices
• Forwarding system control commands and system regulation commands to the connected
RS485 devices
SMA COM GATEWAY
X3
X2 X4 X5
RS485
RS485
A
E
D
A
D
C
B
F
−+
10-30V
DC
X1
RS485
SMA COM GATEWAY
RS485
A
A
K
I
H
G
Figure 2: SMAComGateway design
Position Designation
A Press-out brackets for wall mounting
B Port for connecting the RS485 devices
C Reserved for future applications
D Network ports with status LEDs for connecting to the network
E Type label
The type label clearly identifies the product. You will require the information
on the type label to use the product safely and when seeking customer sup-
port from the SMAServiceLine. You will find the following information on the
type label:
• Device type (Model)
• Serial number (SerialNo.)
• Date of manufacture
• Device-specific characteristics

4 Product Overview SMA Solar Technology AG
Installation ManualCOMGW-10-IA-en-1312
Position Designation
F RS485 LED
The RS485 LED, together with the system LED, indicates the operating state of
the SMAComGateway (see Section4.2 "LED Signals", page13).
G System LED
The system LED, together with the RS485 LED, indicates the operating state of
the SMAComGateway (see Section4.2 "LED Signals", page13).
H Function button
I USB port for updates
K Jack for connecting the voltage supply
Symbols on the SMA Com Gateway and the Type Label
Symbol Explanation
USB
Function button
System LED
RS485 LED
Speedwire
The product is suitable for indoor installation.
CE marking
The product complies with the requirements of the applicable EU directives.
FCC designation
The product complies with the requirements of the applicable FCC standards.

4 Product Overview
SMA Solar Technology AG
Installation Manual COMGW-10-IA-en-13 13
Symbol Explanation
CANICES-3(A)/
NMB-3(A)
IC marking
The product complies with the requirements of the applicable Canadian EMC
standards.
WEEE designation
Do not dispose of the product together with the household waste but in accor-
dance with the disposal regulations for electronic waste applicable at the in-
stallation site.
4.2 LED Signals
System- and RS485 LEDs
The LEDs indicate the operating state of the SMAComGateway.
System LED RS485 LED Explanation
Off Off No power supply or no boot up procedure.
Glowing orange Glowing orange Boot up procedure started.
Flashing orange Off Update procedure running.
Glowing red Off Boot up procedure running.
Glowing green Flashing orange Detection running.
Glowing green Flashing orange
and green in alter-
nation
Detection running. At least one RS485 device has been
detected.
Glowing green Off Normal operation. No data is being received from the
RS485 devices.
Function button has been pressed for longer than 15 sec-
onds.
Glowing green Flashing green Normal operation. Data is being received from the RS485
devices.
Glowing green Flashing red There is a system configuration error (e.g. too many
RS485 devices)
Flashing orange
and green in alter-
nation
Glowing orange Function button has been pressed for less than 5 seconds.
Flashing orange
and green in alter-
nation
Glowing green Function button has been pressed for between 5 and 10
seconds.

4 Product Overview SMA Solar Technology AG
Installation ManualCOMGW-10-IA-en-1314
System LED RS485 LED Explanation
Flashing orange
and green in alter-
nation
Glowing red Function button has been pressed for between 10 and 15
seconds.
Glowing red (for
longer than 2 min-
utes)
Off Error
Network port LEDs
The colors of the network port LEDs and what each color indicates are not
standardized
The colors of the network port LEDs and what each color indicates are not standardized. The
colors used by SMA Solar Technology AG for the Link LED and the Activity LED and what
each color indicates may be different to those used in third-party products.
Figure 3: Network port LEDs
Position Designation Color Explanation
A Link LED Green Shows the network connection status.
B Activity LED Yellow Shows network connection activity.
4.3 Function Button
Depending on how long it is activated for, the function button performs the following functions:
• 1 to 5 seconds: renewed detection of RS485 devices
• 5 to 10 seconds: restarts the SMAComGateway
• 10 to 15 seconds: resets the SMAComGateway to the default settings
• Longer than 15 seconds: no effect
The length of time the function button has been activated for is indicated via LED signals (see
Section4.2 "LED Signals", page13).

5 Mounting
SMA Solar Technology AG
Installation Manual COMGW-10-IA-en-13 15
5 Mounting
5.1 Requirements for Mounting
Requirements for the Mounting Location:
WARNING
Danger to life due to fire or explosion
Despite careful construction, electrical devices can cause fires.
• Do not mount the product in areas containing highly flammable materials or gases.
• Do not mount the product in potentially explosive atmospheres.
NOTICE
Damage due to dust and moisture ingress
Dust or moisture intrusion can damage the product and impair its functionality.
• The product is only suitable for indoor installation.
• The product may only be operated under the specified conditions.
☐ The mounting location must be suitable for the installation of the product.
☐ The mounting location must be suitable for the weight and dimensions of the product (see
Section10, page31).
☐ The mounting location must be inaccessible to children.
☐ The support surface must be suitable for mounting, e.g. concrete, masonry.
☐ The mounting location should be freely and safely accessible at all times without the need for
any auxiliary equipment (such as scaffolding or lifting platforms). Non-fulfillment of these
criteria may restrict servicing.
☐ The mounting location should not be exposed to direct solar irradiation.
☐ All ambient conditions must be met (see Section10, page31).
☐ The labelling on the product must be readable after installation.

5 Mounting SMA Solar Technology AG
Installation ManualCOMGW-10-IA-en-1316
Recommended clearances:
☐ There must be a clearance of 50mm above and below the SMAComGateway to other
objects.
Permitted Mounting Position:
☐ The product may only be mounted in a horizontal position.
Dimensions for Wall Mounting:
SMA COM GATEWAY
RS485
X3X2 X4 X5
X1
− +
10-30V
DC
RS485
108 mm
162 mm
98 mm
90 mm
104 mm
Figure 4: Dimensions for wall mounting
5.2 Mounting the SMAComGateway
There are two options for mounting the SMAComGateway:
• Mounting on a top-hat rail
• Mounting on a wall

5 Mounting
SMA Solar Technology AG
Installation Manual COMGW-10-IA-en-13 17
Mounting the SMAComGateway on a Top-Hat Rail
Additionally required mounting material (not included in the scope of delivery):
☐ Top-hat rail (TH 35-7.5)
Requirement:
☐ The top-hat rail must be securely mounted.
Procedure:
1. Place the SMAComGateway onto the top-hat rail
from above and hook it in.
2
1
SMA COM GATEWAY
SMA
☑ The SMAComGateway snaps into place.
2. Ensure that the SMAComGateway is securely in place.
Mounting the SMAComGateway on a Wall
Additionally required mounting material (not included in the scope of delivery):
☐ 4 screws suitable for the support surface and the brackets. Do not use countersunk screws.
☐ Where necessary, 4 screw anchors suitable for the support surface and the screws.
Procedure:
1. Press the four brackets on the rear side of the
SMAComGateway outwards.
☑ The brackets snap into place.
2. Mark the drill holes using the brackets as a template.
3. Drill the holes and insert the screw anchors if necessary. Do not drill through the brackets.

5 Mounting SMA Solar Technology AG
Installation ManualCOMGW-10-IA-en-1318
4. Insert the screws through the brackets and tighten.
Do not damage the brackets.
SMA COM GATEWAY
SMA
5. Ensure that the SMAComGateway is securely in place.

6 Connection
SMA Solar Technology AG
Installation Manual COMGW-10-IA-en-13 19
6 Connection
6.1 Overview of the Connection Area
SMA COM GATEWAY
X3
X2 X4 X5
RS485
RS485
X2
X5
X4
X3
−+
10-30V
DC
X1
RS485
SMA COM GATEWAY
RS485
X1
Figure 5: Overview of the connection area
Terminal Explanation
X1 Jack for connecting the voltage supply.
X2 Port for connecting the RS485 devices.
X3 Reserved for future applications.
X4 Network port with status LEDs for connecting to the SMA Speedwire network.
X5 Network port with status LEDs for connecting to the SMA Speedwire network.
6.2 Connecting RS485 Devices
Renewed detection after a replacement or addition
If you replace or add RS485 devices, you must detect the RS485 devices again. To do this,
press and hold the function button on the SMAComGateway using a sharp object (e.g.
paperclip) for between 1 and 5 seconds.
Cable requirements:
☐ Cross-section: at least 2x2x0.22mm² or at least 2x2x24AWG
☐ Shielded
☐ Twisted pair conductors
☐ UV resistant
☐ Maximum cable length across the entire RS485 bus: 1200 m

6 Connection SMA Solar Technology AG
Installation ManualCOMGW-10-IA-en-1320
Plug assignment:
Plug Position Assignment
1236
45
1 Data+ (D+)
2 Not assigned
3 Ground (GND)
4 Data- (D-)
5 Line termination (optional)
6 Line termination (optional)
Procedure:
1. Dismantle 40mm of the SMAComGateway end of the RS485 data cable.
2. Strip the shielding to the same length as the cable sheath.
3. Shorten unused insulated conductors flush with the cable sheath.
4. Strip off the conductor insulation by 6mm.
5. Release the conductor entries on the supplied six-
pole plug.
6. Connect the RS485 data cable conductors to the
supplied six-pole plug. To do so, plug the
conductors into the conductor entries and close the
conductor entries. Observe the plug assignment.
1
2
7. If the SMAComGateway is at the end of the
RS485 bus, install a jumper wire as a line terminator
between pin 5 and pin 6 on the six-pole plug.