SMA COMGW-10, COM Installation Manual

SUNNY BO

Y

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.SMA­Solar.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: [e-mail]
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-rele­vant

☐

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 non­compliance 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.

SM

A C

O

M

G

ATEWAY

- +

1
0 - 30V

D
C

X

1

R
S

4
8

5

RS485

SMA

A

C

B

DD

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

RS4

85

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 sup­port 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 alter­nation

Glowing orange Function button has been pressed for less than 5 seconds.

Flashing orange
and green in alter­nation

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 alter­nation

Glowing red Function button has been pressed for between 10 and 15

seconds.

Glowing red (for
longer than 2 min­utes)

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

SMACOM 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.

SMACOM 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

R

S

4

8

5

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

1

2

3

6

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 six­pole 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.

6 Connection

SMA Solar Technology AG

Installation Manual COMGW-10-IA-en-13 21

8. Plug the six-pole plug into the port X2 on the
SMAComGateway.

X3

X2

X4

X5

R
S

4
8

5

RS485

RS485

6.3 Connecting the SMADataLogger

Interference in data transmission due to unshielded power cables

If unshielded power cables are used, they generate an electromagnetic field during operation
which may induce interference in network cables during data transmission.

• When laying network cables, observe the following minimum clearances to unshielded
energy cables:

– For installation without separating strip: at least 200mm
– For installation with aluminum separating strip: at least 100mm
– For installation with steel separating strip: at least 50mm

Additionally required material (not included in the scope of delivery):

☐ One network cable

Cable requirements:

The cable length and quality affect the quality of the signal. Observe the following cable
requirements:

☐ Cable type: 100BaseTx, from Cat5 with shielding S-UTP, F-UTP or higher
☐ Plug type: RJ45 of Cat5, Cat5e, Cat6 or Cat6a. Cat7 plugs cannot be used.
☐ Maximum cable length between two nodes when using patch cables: 50 m
☐ Maximum cable length between two nodes when using installation cables: 100 m
☐ UV-resistant for outdoor use

Procedure:

1. Plug the RJ45 plug of the network cable into the network port X4 or X5 until the RJ45 plug
snaps into place. The assignment of the network cables to the ports is not relevant, as the ports
constitute a switch function.

2. Connect the other end of the network cable to the network.

6 Connection

SMA Solar Technology AG

Installation ManualCOMGW-10-IA-en-1322

6.4 Connecting the Voltage Supply

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.

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.

Additionally required material (not included in the scope of delivery):

☐ 1 power supply unit
☐ 1 AC connection cable
☐ 1 connection cable for connecting the power supply unit to the SMAComGateway

Requirements for the power supply unit:

☐ Short-circuit current: <8A
☐ Nominal output power: 5W
☐ DC output voltage: 10V to 30V
☐ Compliance with the requirements on current sources with limited power in accordance with

IEC 60950

Requirements on the connection cable for connecting the power supply unit to the
SMAComGateway:

☐ Core cross-section: 0.2 to 1.5 mm²
☐ The cable must have at least two insulated conductors
☐ Maximum cable length: 3 m

6 Connection

SMA Solar Technology AG

Installation Manual COMGW-10-IA-en-13 23

Plug assignment:

Plug Position Assignment

1

2

1 Input voltage 10to30VDC
2 Ground (GND)

Procedure:

1. Mount the power supply unit (see the manufacturer manual).

2. Connect the connection cable to the power supply unit (see the manufacturer manual). Make
a note of the insulated conductor colors and trim the unused insulated conductors back to the
cable sheath.

3. Release the conductor entries on the supplied two­pole plug.

4. Connect the connection cable to the supplied two­pole plug. To do so, plug the conductors into the
conductor entries and close the conductor entries.
Observe the plug assignment.

1

2

5. Trim unused insulated conductors flush with the cable sheath.

6. Plug the two-pole plug into the jack X1 on the SMAComGateway.

7. Connect the AC connection cable to the power supply unit (see the manufacturer manual).

8.

WARNING

Danger to life due to electric shock

Lethal voltages are present at the connection point of the utility grid.

• Disconnect the connection point from voltage sources and ensure that the connection
point is voltage-free.

6 Connection

SMA Solar Technology AG

Installation ManualCOMGW-10-IA-en-1324

9. Connect the other end of the AC connection cable to the voltage supply.

10. Connect the connection point to the utility grid.
☑ The SMAComGateway starts detecting the RS485 devices (see Section7 "Commissioning",

page25). This process can take several minutes.

7 Commissioning

SMA Solar Technology AG

Installation Manual COMGW-10-IA-en-13 25

7 Commissioning

7.1 Commissioning the SMA Com Gateway

Requirements:

☐ All RS485 devices must be in operation and connected correctly to the SMAComGateway

via the RS485 bus.

☐ The SMADataLogger must be in operation and connected correctly to the

SMAComGateway via the network.

☐ The voltage supply must be connected correctly to the SMAComGateway.

Procedure:

1. Check whether the System LED on the SMAComGateway is glowing green.
If the System LED is not glowing green, read the troubleshooting information (see Section8

"Troubleshooting", page26).

2. Check whether the SMAComGateway has been detected in the SMADataLogger.
If the SMAComGateway has not been detected, ensure that the network cable is connected

correctly.
If the problem persists, read the troubleshooting information(see Section8 "Troubleshooting",

page26).

3. Check whether all RS485 devices are being shown in the SMADataLogger.
If not all of the RS485 devices have been detected, read the troubleshooting information (see

Section8 "Troubleshooting", page26).

4. Add the SMAComGateway in the SMADataLogger and reenter the system password (see
SMADataLogger manual).

7.2 Configuring the SMAComGateway

You can configure the SMAComGateway. Configuration takes place via the SMADataLogger
user interface (see SMADataLogger manual). Parameters that are changed during a pending data
acquisition request will be considered with the next request. The following configuration options are
available:

• Setting the baud rate (1200 baud or 19200 baud). Renewed detection is necessary upon
completion.

• Setting the number of RS485 devices to be detected (maximum 50). Renewed detection is
necessary upon completion.

• Starting RS485 device detection.

• Restarting the SMAComGateway.

• Resetting the SMAComGateway to the default settings.

• Setting the IP configuration (DHCP or manual).

8 Troubleshooting

SMA Solar Technology AG

Installation ManualCOMGW-10-IA-en-1326

8 Troubleshooting

Problem Cause and corrective measures

The SMADataLogger can
not find the SMAComGate­way.

The network cable is not connected correctly.

Corrective measures:

• Ensure that the network cable is connected correctly and that
the network port Link LED is glowing.

The network cable or connector is defective or damaged.

Corrective measures:

• Replace the defective or damaged network cable or connector.

The SMADataLogger does not automatically assign an IP address
to the SMAComGateway.

Corrective measures:

• Ensure that DHCP is activated on the SMADataLogger.

or

• Assign a suitable static IP address to the SMAComGateway
via SMA Connection Assist or Sunny Explorer. You can obtain
the SMAConnectionAssist and SunnyExplorer software free
of charge at www.SMA-Solar.com.

8 Troubleshooting

SMA Solar Technology AG

Installation Manual COMGW-10-IA-en-13 27

Problem Cause and corrective measures

Not all RS485 devices are
being detected.

Not all RS485 devices are in operation.

Corrective measures:

• Ensure that all RS485 devices are in operation.
Then perform a renewed RS485 device detection. 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.

There are too many RS485 devices in the system.

Corrective measures:

• Ensure that there are no more than 50 RS485 devices in the
system.

Then perform a renewed RS485 device detection. 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.

or

• Ensure that the value set in the SMAComGateway for the
number of RS485 devices to be detected is not too low.

Then perform a renewed RS485 device detection. 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.

The baud rate of one or more RS485 devices has been configured
incorrectly.

Corrective measures:

• Ensure that all baud rates in the system are in accordance with
the SMAComGateway.

Then perform a renewed RS485 device detection. 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.

8 Troubleshooting

SMA Solar Technology AG

Installation ManualCOMGW-10-IA-en-1328

Problem Cause and corrective measures

The device data is being dis­played incorrectly in the
SMADataLogger

One or more RS485 devices have been replaced or added.

Corrective measures:

• Perform a renewed RS485 device detection. 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.

One or more RS485 devices have been configured.

Corrective measures:

• Perform a renewed RS485 device detection. 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.
Then restart the SMADataLogger (see SMADataLogger
manual).

8.1 Updating the Firmware

There are two ways to update the SMAComGateway firmware:

• Updating the firmware automatically via SMADataLogger

• Updating the firmware at the SMAComGateway via USB flash drive

Automatically Updating the Firmware via SMADataLogger

• Set automatic firmware updating in the SMADataLogger (see SMADataLogger manual).

Updating the Firmware at the SMAComGateway via USB Flash Drive

Requirements:

☐ A USB flash drive with maximum 32GB storage capacity and file system FAT32 must be

available.

☐ The SMAComGateway must be in operation.

Procedure:

1. Create an "UPDATE" folder on the USB stick.

2. Save the update file with the desired firmware in the "UPDATE" folder on the USB flash drive.
The update file is, for example, available for download on the SMAComGateway product
page at www.SMA-Solar.com.

3. The update file will be renamed as "update.up2".

8 Troubleshooting

SMA Solar Technology AG

Installation Manual COMGW-10-IA-en-13 29

4. Plug the USB flash drive into the USB port on the SMAComGateway.

☑ The System LED flashes orange during the firmware update. This process can take several

minutes.

☑ Once the firmware has been updated successfully, the System LED glows green

continuously.

✖ The SYSTEM LED is not glowing green continuously?

• Update the firmware again.

5. Pull the USB flash drive out of the USB port on the SMAComGateway.

9 Decommissioning the SMAComGateway

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Installation ManualCOMGW-10-IA-en-1330

9 Decommissioning the SMAComGateway

1.

WARNING

Danger to life due to electric shock

Lethal voltages are present at the connection point of the utility grid.

• Disconnect the connection point from the utility grid using the separator (e.g. circuit
breaker).

• Pull the two-pole power supply unit plug out of the jack X1 on the
SMAComGateway.

2. Release the RJ45 network cable plug and pull out of the network port X4 or X5 on the
SMAComGateway.

3. Pull the six-pole plug for connecting the RS485 devices out of the port X2 on the
SMAComGateway.

4. Remove the SMAComGateway:

• If mounted on a top-hat rail, unhook the
SMAComGateway from the top-hat rail. To
do so, tilt the lower edge of the
SMAComGateway forwards and remove the
SMAComGateway upwards out of the top­hat rail.

SMA COM GATEWAY

SMA

2

1

• If mounted on a wall, remove the screws from the brackets and remove the
SMAComGateway.

5. If the SMAComGateway is to be disposed of, dispose of the SMAComGateway in
accordance with the locally applicable disposal regulations for electronic waste.

10 Technical Data

SMA Solar Technology AG

Installation Manual COMGW-10-IA-en-13 31

10 Technical Data

Communication

RS485 devices Maximum 50 devices, 1200 or 19200 baud
SMADataLogger Speedwire, 10 / 100 Mbit/s

Connections

Voltage supply 2-pole connection, MINI COMBICON
RS485 6-pole connection, MINI COMBICON
SMADataLogger / network (LAN) 2 x RJ45 switched, 10BaseT / 100BaseT
USB 1 x USB 2.0, type A

Voltage Supply

Voltage supply External power supply unit
Input voltage range 10V to 30V
Power consumption Type 4 W

Ambient Conditions in Operation

Ambient temperature -20°C to +60°C
Max. permissible value for relative humidity

(non-condensing)

5% to 95%

Maximum operating altitude above mean sea
level (MSL)

3000 m

Degree of protection IP20

General Data

Dimensions (W x H x D) 161.1mmx 89.7mmx 67.2mm
Weight 203 g
Mounting location Indoors
Mounting type Top-hat rail mounting / wall mounting
Status display LEDs for system-, RS485- and Ethernet status

Equipment

Warranty 2 years
Certificates and approvals www.SMA-Solar.com

11 Contact

SMA Solar Technology AG

Installation ManualCOMGW-10-IA-en-1332

11 Contact

If you have technical problems with our products, please contact the SMAServiceLine. The
following data is required in order to provide you with the necessary assistance:

• Device type

• Serial number

• Firmware version

• Event message

• Device type, serial number and firmware version of the SMADataLogger (if available)

Deutschland
Österreich
Schweiz

SMA Solar Technology AG
Niestetal
Sunny Boy, Sunny Mini Central,

SunnyTripower:
+495619522‑1499

Monitoring Systems
(Kommunikationsprodukte):
+495619522‑2499

Fuel Save Controller
(PV-Diesel-Hybridsysteme):
+495619522-3199

Sunny Island, Sunny Boy Stor­age, Sunny Backup:
+495619522-399

Sunny Central, Sunny Central
Storage:
+495619522-299

SMA Online Service Center:
www.SMA-Service.com

Belgien
Belgique
België
Luxemburg
Luxembourg
Nederland

SMA Benelux BVBA/SPRL
Mechelen
+3215286 730
SMA Online Service Center:

www.SMA-Service.com

Česko
Magyarország
Slovensko

SMA Service Partner TERMS
a.s.

+4203876 85 111
SMA Online Service Center:

www.SMA-Service.com

Türkiye SMA Service Partner DEKOM

Ltd. Şti.
[phone]
SMA Online Service Center:

www.SMA-Service.com

France SMA France S.A.S.

Lyon
[phone]
SMA Online Service Center :

www.SMA-Service.com

Ελλάδα
Κύπρος

SMA Service Partner AKTOR
FM.

Αθήνα
[phone]
SMA Online Service Center:

www.SMA-Service.com

España
Portugal

SMA Ibérica Tecnología Solar,
S.L.U.

Barcelona
+34935635099
SMA Online Service Center:

www.SMA-Service.com

United King­dom

SMA Solar UK Ltd.
Milton Keynes
+441908304899
SMA Online Service Center:

www.SMA-Service.com

11 Contact

SMA Solar Technology AG

Installation Manual COMGW-10-IA-en-13 33

Italia SMA Italia S.r.l.

Milano
+39028934-7299
SMA Online Service Center:

www.SMA-Service.com

Australia SMA Australia Pty Ltd.

Sydney
Toll free for Australia:

1800SMAAUS
(1800762287)

International:
+61294914200

United Arab
Emirates

SMA Middle East LLC
Abu Dhabi
+9712234 6177
SMA Online Service Center:

www.SMA-Service.com

India SMA Solar India Pvt. Ltd.

Mumbai
+912261713888

ไทย SMA Solar (Thailand) Co., Ltd.

กรุงเทพฯ
+6626706999

대한민국 SMA Technology Korea Co.,

Ltd.
서울
[phone]

South Africa SMA Solar Technology South

Africa Pty Ltd.
Cape Town
08600SUNNY (08600 78669)
International: [phone]

0699
SMA Online Service Center:

www.SMA-Service.com

Argentina
Brasil
Chile
Perú

SMA South America SPA
Santiago de Chile
[phone]

Other coun­tries

International SMA Service Line
Niestetal
00800SMASERVICE

(+8007627378423)
SMA Online Service Center:

www.SMA-Service.com

12 EU Declaration of Conformity

SMA Solar Technology AG

Installation ManualCOMGW-10-IA-en-1334

12 EU Declaration of Conformity

within the scope of the EU directives

• Electromagnetic compatibility 2014/30/EU (L 96/79-106, March 29,

2014) (EMC)

• Restriction of the use of certain hazardous substances 2011/65/EU
(RoHS)

SMA Solar Technology AG confirms herewith that the product described in this document is in
compliance with the fundamental requirements and other relevant provisions of the above­mentioned directives. The entire EU Declaration of Conformity can be found at www.SMA­Solar.com.

www.SMA-Solar.com