USB – RS232 Cable Converter

USB – RS232 Cable Converter
APPLICATION NOTE
KB-0277-00
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ENGLISH
Important User Information
Liability
Every care has been taken in the preparation of this document. Please inform HMS Industrial Networks SA of any
inaccuracies or omissions. The data and illustrations found in this document are not binding. We, HMS Industrial
Networks SA, reserve the right to modify our products in line with our policy of continuous product development.
The information in this document is subject to change without notice and should not be considered as a commitment by HMS Industrial Networks SA. HMS Industrial Networks SA assumes no responsibility for any errors that
may appear in this document.
There are many applications of this product. Those responsible for the use of this device must ensure that all the
necessary steps have been taken to verify that the applications meet all performance and safety requirements including any applicable laws, regulations, codes, and standards.
HMS Industrial Networks SA will under no circumstances assume liability or responsibility for any problems that
may arise as a result from the use of undocumented features, timing, or functional side effects found outside the
documented scope of this product. The effects caused by any direct or indirect use of such aspects of the product
are undefined, and may include e.g. compatibility issues and stability issues.
The examples and illustrations in this document are included solely for illustrative purposes. Because of the many
variables and requirements associated with any particular implementation, HMS Industrial Networks SA cannot assume responsibility for actual use based on these examples and illustrations.
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USB – RS232 Cable Converter
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Table of Contents
1
Page
Preface ............................................................................................................................... 3
1.1
About This Document.....................................................................................................3
1.2
Document history...........................................................................................................3
1.3
Related Documents .......................................................................................................3
1.4
Trademark Information ...................................................................................................3
2
Introduction ...................................................................................................................... 4
3
Configure the Computer................................................................................................ 5
4
Configure the eWON....................................................................................................... 6
4.1
Configure the eWON Cosy 131 .......................................................................................6
4.2
Configure the eWON Flexy .............................................................................................6
5
Remote Access to the Serial Device .......................................................................... 7
6
Troubleshooting .............................................................................................................. 8
6.1
Issue on First Connection ...............................................................................................8
6.2
Cable Is Not Recognized ................................................................................................8
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Preface
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1
Preface
1.1
About This Document
This document explains how to use a USB – RS232 cable converter when it is combined with
an eWON product.
The “eWON device” or the “eWON” mentioned in this document refers to the eWON Flexy and
eWON Cosy 131.
For additional related documentation and file downloads, please visit www.ewon.biz/support.
1.2
1.3
Document history
Version
Date
Description
1.0
2018-02-22
Original document.
Related Documents
Document
eWON Flexy USB Extension Card FLB 3601
1.4
Author
eWON CTS
Document ID
IG-0024-00
Trademark Information
eWON® is a registered trademark of HMS Industrial Networks SA. All other trademarks mentioned in this document are the property of their respective holders.
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Introduction
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Introduction
There are a number of automation devices solely equipped with a serial 9 pin port.
This document details step by step the routine to connect and access remotely the serial port
devices by taking advantage of the USB port available on some of the eWON devices.
The link between the serial port device and the eWON devices is made possible thanks to a
USB – RS232 adapter cable.
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Configure the Computer
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Configure the Computer
The first step is to check if the cable converter is working properly with the computer that has
eCatcher installed which will be used to remotely access the serial device.
In case the cable converter was never connected to this computer, it must be first connected directly to the computer and tested to verify that it is working correctly with the software.
Eventually, a quick look at the “Device manager” of the computer can be done to make sure the
USB driver of the cable is recognized and operational.
Fig. 1
Example of a USB Driver in the Device Manager of Windows.
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Configure the eWON
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Configure the eWON
Once the cable converter is fully compatible with the computer, it can be plugged in the eWON
and the serial port device.
4.1
Configure the eWON Cosy 131
The eWON Cosy 131 is equipped with a USB port which is by default activated.
The minimum firmware version of the eWON Cosy 131 required to take advantage
of the USB connectivity is 10.0s0.
If a verification to confirm that the USB port is activated needs to done, the status of the USB
port is displayed on the homepage of the Cosy 131 web interface under the “Gateway” frame.
4.2
Configure the eWON Flexy
The USB connectivity on the eWON Flexy is made possible thanks to the USB extension card
FLB 3601. For more information on how to install and use this extension card, refer to the
eWON Flexy USB Extension Card FLB 3601 in the Related Documents, p. 3.
The minimum firmware version of the eWON Flexy required to take advantage of
the USB connectivity is 11.2s1.
If a verification to confirm that the USB port is activated needs to done, the status of the USB
port is displayed on the homepage of the Flexy web interface under the “Gateway” frame.
The status of the USB connectivity is not displayed on the homepage if the USB extension card
FLB 3601 is not inserted in the eWON Flexy base unit.
An extension card must always be inserted when the base unit is powered off.
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Remote Access to the Serial Device
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Remote Access to the Serial Device
To connect remotely to the serial port device:
1.
Open eCatcher, highlight the desired eWON in the list and hit the “Connect” button.
2.
If the USB – serial cable is correctly
detected by the eWON, a “Connect”
link will appear in the “Active connection” frame of eCatcher.
Click on “Connect” to establish the
link to the serial device through the
USB port.
Fig. 2
Label to Connect to the USB – Serial Device.
3.
If the connection has been correctly established, the driver with a specific COM port is now
displayed in the “Device Manager” of Windows.
4.
Start using the appropriate software to connect to the serial device.
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Troubleshooting
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6
Troubleshooting
6.1
Issue on First Connection
When the cable converter has never been used with the computer that will be performing the remote access through eCatcher, it is highly probable that the USB driver of the cable is not installed or at least not successfully.
In this case, it is recommended to install the USB driver and test it before going any further.
Fig. 3
6.2
Example of a USB Driver Unsuccessfully Installed.
Cable Is Not Recognized
A lot of USB – RS232 DB9 Serial Adapter Cables are available on the market and some of them
might not be compatible.
Cables listed below have been tested and seem to provide similar performances:
•
TRENDNet
•
Ugreen
•
RoHS
•
sWeex
•
plugable
This list is a non-exhaustive list which means that other cables that are not listed here above can
be compatible.
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© 2018 HMS Industrial Networks AB
Box 4126
300 04 Halmstad, Sweden
info@hms.se
KB-0277-00
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