IpCAS ipEther232 User manual

ipEther232.Modem

User Guide

ipcas GmbH

Wetterkreuz 17

91058 Erlangen

Germany

Phone: +49 9131 7677 0

Fax:: +49 9131 7677 78

Internet: http://www.ipcas.de

Email: info@ipcas.de

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Legal Information for Customers

We have done our u tm o st to ensu re th at the i nfo rmati on i n thi s

user guide is complete, accurate and up to date. In so far as legally

possible, we cannot accept any liability for consequential damage

caused by using this guide. In other respects we shall accept

liability for intention and gross negligence only. We cannot provide

any warranty that changes to third-party equipment referred to in

this guide will have no effect on the applicability of the information

provided in this guide.

The author reserves all rights, including the right to reproduce this

guide in full or part thereof in any form whatsoever.

The content is subject to change without prior notification.

The product is subject to technical change without prior notification.

All trade marks mentioned in this manual are stated for

identification purposes and may be the property of the various

holders.

Important Information

· The device should be used exclusively with the mains unit

supplied. Using a different power supply unit may result in damage

to the device.

· Use a dry cloth only to clean the operating panel and the housing.

· If the device is damaged, disconnect from the mains. Arrange for

immediate repair.

· Before contacting your vendor's customer service, please consult

this user guide.

· Using customer service during the warranty period may incur

costs, if the fault or problem was caused by the customer and the

solution or remedy is described in this guide.

· Rem o ving the seri al number wi ll void the wa rranty ri ghts.

· Damage caused by inappropriate packing will not be borne by

the forwarding agent / insurance company.

Note !

IpEther232 is a Class A device. This device can cause interferences

to radio communications in residential areas; in such cases the

operator may be ordered to carry out and pay for appropriate

measures.

This warning does not apply to desktop housing or the OEM version

w ithout housing.

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Important Safety Information

As is the case with all electrical equipment there are some basic

safety precautions to be observed. These safety precautions are

primarily for you own safety but also serve to prevent damage to

the device.

Settings not described in this guide and changes to the device

electronics are to be carried out by an authorized vendor only.

Read the user guide carefully and keep it to hand.

Make sure that...

· the device is placed on a stable, flat surface;

· for rail mounted devices the top hat rail is sufficiently grounded

and the rail spring has good contact;

· the device is never placed near a heater or the air outlet of an

air-conditioning unit;

· the device is never exposed to direct sunlight;

· the device is never in direct contact with liquids of any kind.

Never use liquids in the vicinity of the device.

· Opening the housing may lead to an electric shock and other

damage. Never make any changes to the device that are not

described in the user guide. This could result in damage to the

device and you would have to pay for the repairs. Only the

authorized vendor may modify the input voltage, should this

becom e nece ssary.

Install the device

Make sure that...

· the mains supply values are the same as the designation on the

power supply unit. In case of doubt contact your supplier.

· the mains is protected against surges and other disturbances.

· the mains socket is located near the device and is easily

accessible.

· you pull the mains plug completely to disconnect.

· the maximum power rating of an extension cable or multiple

contact plug, if used, is not exceeded.

· the mains cable is protected against damage. Do not place

anything on the cable and put it down, so that there is no danger

of stepping on or tripping over it.

· a damaged mains cable is replaced immediately.

· the mains cable is disconnected before starting to clean the

device. Use a dry cloth only. Do not use any liquid or aerosol

cl eani ng agent.

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Please follow all warnings and instructions displayed on the device itself and in

accompanying manuals. In the manual, warnings of particular importance are marked by the

symbols below.

Warning and Important Information Symbols

NOTE: Text sections marked in this way contain supplementary information or hints.

WARNING - damage: This warns against possible damage to the device. Follow all

instructions to avoid damage.

CAUTION - Danger of injury: This points out a possible source of danger. Follow all

safety instructions to avoid injury.

CAUTION - Hot: This points out a possible source of danger. Follow all safety

instructions to avoid heat-related injury.

CAUTION - Current: This points out a possible source of danger. Follow all safety

instructions to avoid injury through electrocution.

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Contents Page

Chapter 1: The Device....................................................................6

1.1 Usage............................................................................................................................. 6

1.2 Sockets.......................................................................................................................... 8

Chapter2: Commissioning the ipEther232.Modem ................9

2.1 Comm issioning............................................................................................................. 9

2.2 Set the IP Address....................................................................................................... 9

2.3 Configuration...............................................................................................................11

2.4 ipEtherModem.inf (Driver File)................................................................................14

2.6 Serial Configuration ...................................................................................................17

2.6.1 Configure Password Protection (Serial Devices only)......................................18

Chapter 3: Control Commands..................................................19

3.1 AT Command Input and Execution.........................................................................19

3.2 Transmission Mode ...................................................................................................19

3.3 Quick Reference for AT Comm ands and Registers .............................................20

Chapter 4: Definition of AT Commands and Registers ...21

4.0 Chart of AT Comm ands ............................................................................................21

4.1 Register Chart.............................................................................................................24

4.2 Result Code ................................................................................................................31

Chapter 5: Technical details.......................................................32

5.1 Specifications..............................................................................................................33

5.2 Pin Assignment...........................................................................................................34

5.2.1 Pin Assignment ipEther232.Modem OEM..........................................................35

5.2.2 Power supply units .................................................................................................37

5.2.3 RS232.Modem Module..........................................................................................38

5.2.4 RS232 Module.........................................................................................................38

5.2.5 RS485 Module.........................................................................................................39

3.2.6 RS485 as a 2 Wire solution...................................................................................39

5.3 Measurements............................................................................................................40

5.4 Declaration of EEC Compliance..............................................................................43

5.5 Glossary.......................................................................................................................44

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Chapter 1: The Device

1.1 Usage

ipEther232.Modem enables you to use serial interfaces via a TCP/IP network. .

This allows you to control devices without a network interface over long

distances. In addition to the serial interface, the Ethernet modem also has a

network interface. In order to connect two serial devices simply use two modems

linked via Ethernet instead of a serial cable.

ö Terminals

ö CNC controll ers

ö Counting devi ces

Such devices are: ö Embedded controllers

ö Industrial switches

ö Serial printers

ö SPS controllers

ö Card scanners

ö Measuring equipment

ö UPSs

Thus all applications and devices that support terminal or modem functionalities

can also be used via the Ethernet. This has numerous advantages:

· lower telephone costs

· reduce the number of analog connections (monthly fee)

· si m pl if ie d lo gi st i cs

· extremely low porting costs

· protects your investments by converting serial devices into network

devices without necessitating changes in the existing software, saving

additional product development costs

· versatile power supply and optimal housing solutions

· serial devices can be used by several clients

· automatic setup of network connection after interruptions

· easy to setup and suitable for larger installations

· si m pl e integrati on of seri al ap pli catio n s

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"Netw orking" w ill soon be the global standard. How ever, manufacturers

require expensive labor, precious time and comprehensive experience to

develop netw ork technologies. As most devices are already equipped w ith

an RS232/485 interface, the Ethernet modem offers an instant and eff icient

solution for transmitting RS232/485 data via the netw ork. The Ethernet

modem not only provides added value to your product, it also adds to the

value of your existing equipment for the next generation.

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1.2 Sockets

i pEther2 32 .M o dem has thre e sockets:

· Ethernet (10BaseT) for a 10/100 Mbit network

· RS232 SUB-D 9

· 9V DC power supply

A diagram of all connectors and their designation is displayed on the housing.

The LEDs indicate the device state and have the following meaning:

· POWER The device is switched on.

· System Slow flashing indicates that at the moment there is no

connection to a PC. Fast flashing indicates that the

device is in use.

· LINK LAN There is a physical link to the network.

· LAN Rx Packets are received via the Ethernet.

· LAN Tx Packets are sent to the Ethernet.

· V24 Rx Data is received via the RS232 line.

· V24 Tx Data is sent via the RS232 line.

· Error Errors have occured in the RS232 line.

RS232

SUB-D 9 Pin

Ethernet

10/100

RJ45

9V DC

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Chapter2: Commissioning the ipEther232.Modem

2.1 Commissioning

Connect the device to the mains. The "Power" signal and the flashing "System"

LED indicate that ipEther232 is ready for operation.

ipEther232 is connected to the network via an RJ45 socket.

The "Link LAN" LED (connection) indicates the connection to the LAN.

If this is not the case, check the netwok connection or network line.

The enclosed CD contains a modem driver set-up program and the configuration

tool. The modem driver runs on all windows NT based operating systems, as well

as Windows NT 4 from SP5, Windows 2000 and Windows XP.

No PC reboot is necessary after installation. The configuration tool for configuring

the device starts automatically after installation.For later configuration sessions

the program is included in the "Programme-ipEther232.Modem" folder.

You can also set up your ipEther232.Modem with a serial configuration using AT

commands.

(for more details see chapter 2.6 Serial Configuration and chapters 3 & 4).

2.2 Set the IP Address

On delivery of ipEther232, no valid IP address has been set (Default: 10.10.5.1).

T o start wi th, each d e vice m u st b e al located an unam bi guous IP address.

The IP address can be obtained from the network administrator. It must comply

with your network and cannot be assigned twice.

In order to set the IP address in your ipEther232, the device must be connected

to its own network segment. If need be, connect the device via a "cross over"

cable to the PC.

The configuration program recognizes all devices in its own network segment,

even if they do not have a valid IP address. Double-click on the device entry to

call up a dialog, where you can enter a valid IP address and further

configurations.

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The entry "State" has the follow ing meaning:

· "not found"

The device could not be located anymore. It is not connected, switched off or

has been connected after a router blocking the UDP Port 3497.

· "connected"

The device has been located and can be addressed via the entered IP

address.

· "connected via router"

The device has been located and installed after the router. The IP address

cannot be changed.

· "found but unreachable"

The device has been located in the own network segment, but could not be

accessed via the entered IP address. Check whether the entered IP address

is valid for your network.

· "in use"

The device is in use at the moment. The parameters cannot be changed.

· “access denied“

Access wa s denied because password authentication has failed.

If ipEther232s are connected after a

router, they are not automatically

located. They have to be entered

manually ("Add Device manually“).

This is done by entering their IP

address. If the device can be

accessed via this address, it is

included in the list.

If the device is installed after a

router, the IP address cannot be

changed. This prevents the device

from becoming inaccessible by

accident.

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2.3 Configuration

As mentioned above, the configuration program recognizes all devices in its own

network segment.

Double-click on an entry to open the detailed five-part dialog.

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TCP/IP:

This tells you the device ID, i.e. the ipEther232.Modem serial number and this is

where the network settings are configured.

Modem settings:

Here you can define the modem behavior.

"Connect to IP": Enter the IP address of the "communication partner" where a

connection is to be set up automatically (Leased line). After a connection break-

off there is an automatic attempt at restoring the link.

"Answer incoming calls": automatic call accept.

"Echo": command echo on.

"Qui et Mode": Re sul t codes on.

"Ignore DTR": ignore DTR status change.

RS232:

Baud rate, databits, parity and stopbits are adjusted to the communication

behavior of the serial terminal device.

"Total Timeout": The default value of 50 ms applies to most cases. The "ping" tool

assists in determining the ideal throughput time (see below).

"Character Distance" with a default value of 5 ms requires adjusting only in very

rare cases.

Throughput time + 10ms = ideal “To tal Tim e ou t“

here < 10ms + 10ms = 20ms

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TC 57 settings:

The advantage of the TC 57 settings is that on reception of a frame of this

format (from the RS232 line) the frame is immediately sent on to the Ethernet

without having to wait for a timeout. This greatly improves communication speed

and performance.

The IEC 60870-5-1 and IEC 60870-5-2 norms define four standard frame

formats for the link layer. They are:

· Format FT 1.1

· Format FT1.2

· Format FT 2

· Format FT 3

The transmission frame formats - FT 1.2, FT 2 and FT 3 have a Frame of fixed

length.

The Frame with variable length for FT 2 and FT 3 have a header of fixed length.

It includes “Start character”, “Length” byte, “User Data” and “Check sequence”.

The user must select the desired Format and include values for “Fixed frame

length” and “Header length” parameters.

The range of “Fixed frame length” is from 2 to 255 bytes.

The range of “Header length” is from 2 to 14 bytes.

Firmw are:

This tells you the firmware release. You can update to the most current version.

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2.4 ipEtherModem.inf (Driver File)

Follow these instructions to install the modem driver for

ipEther232.Modem under Window s operating systems:

Cl i ck on "Control Panel " i n

the Explorer and then on

"Modems" to start the modem

i nstal lati on.

Check this option

for modem

i nstal la ti on.

Select this option to

define the driver

location.

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Select "Browse"...

and enter the

location of the .inf

driver.

Click on

"Next"

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Enter the

i pEther2 32 .M o dem

interface.

A

f t e r th e su cce ssf u l

installation you can

adjust the modem to

your particular

requirements with

"Properties" and

"Dialing parameter"

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2.6 Serial Configuration

Connect the mains power supply to the device. The "power" light and the flashing

"system“ LED indicate that ipEther232 is operational.

The ipEther232 is connected to the PC or a serial terminal via a serial 1:1 cable.

(Basic settings: baud rate=9600, databits=8, parity=none, stopbits=1)

If the terminal tool, e.g. Hyperterm (in MS Windows to be found under Programs -

Accessories), is configured correctly for the connected Com port, the AT&V

command returns the current configuration of the Ethernet modem.

For more detailed explanations about the AT commands and the registers refer to

chapter 3 and 4.

Examples:

- Set the IP address: ATS100=192.109.223.242

- Set the baud rate to 38400: ATS31=5

- dial-up to the distant terminal: ATD 192.109.223.243

- hang up: +++ „2 sec. Pause“ ATH

- least line: ATS0=1, ATS102=192.109.223.243

(Configure distant terminal as well!!!)

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2.6.1 Configure Password Protection (Serial Devices only)

Enable the passw ord configuration mode:

Enter the ATP master password to enter the configuration mode. The default

m a ste r passwo rd i s " 0 00 00 0 “

à ATP000000

Set up and change the passw ords:

To change the master password, enter ATZ=“new master password". 9 more

passwords can be configured here (ATZ1...ATZ9).

à ATZ1=ipether

Each password consists of a maximum of 8 characters (additional characters are

ignored). The password is not case-sensitive (special characters are allowed).

Enter ATZ? or ATZ1?...ATZ9? to read out all the password s.

Enable passw ord protection:

Register 81 allows you to enable and disable the password protection.

(only in the password configuration mode)

à ATS81=1 enable password protection mode

à ATS81=0 disable password protection

Password blocking time:

Register S82 enables the setting of a password blocking time.

After three incorrect password entries, the modem waits for the blocking time,

before a new password query is allowed.

à ATS82=120 The blocking time is 2 minutes

Valid IP addresses:

The password configuration mode allows the configuration of ten IP addresse s,

for which calls are accepted. (ATR0....ATR9). If this list is empty, calls are

accepted from all partner modems.

à ATR1=192.168.10.12 Calls are accepted

Save changes:

All changes only take effect after they have been saved.

The AT&W command starts the saving process.

à AT &W

If the master password has been forgotten, the device must be sent in.

If the settings are not saved, all changes are lost, once the ipEther232.Modem is

disconnected from the power supply.

Quit the password configuration mode:

Enter ATP to exit the configuration mode.

à AT P

The dial-up to a password protected ipEther232.Modem returns the message

"PASSWORD:“

To set up a connection, the master password or one of the 9 additional

passwords (if defined) must be entered.

An incorrect entry leads to the "WRONG PASSWORD“ message.

If a call from an IP protected modem is not accepted, the message "ACCESS

DENIED“ is issued.

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Chapter 3: Control Commands

Up until now there has been no standardized AT command set (AT = command

prefix Attention), each manufacturer could implement his own. The V.250

command set is the first industry standard available. Microsoft recommends this

command set for the PC-98 specifications and makes it a mandatory requirement

for the PC-99 specifications.

With ipEther232.Modem you have purchased a state-of-the-art "Ethernet modem"

equipped with the AT command set. A terminal program enables you to enter the

AT commands (e.g. "Hyper Terminal": This tool is part of the MS Windows

package. You can find it under "Start - Programs - Accessories ".)

3.1 AT Command Input and Execution

After power-up the Ethernet modem is ready for command input. Only in this

mode can commands be accepted, interpreted and executed.

All commands directed at the Ethernet modem must be prefixed with the ASCII

code AT or at (not permitted: At or aT) and be followed by "Enter". If several

commands are to be entered, they can each be entered with the AT prefix and

"Enter". It is just as permissible to place these commands in a single line between

an introductory AT and finish the command input with the "Enter" key.

For readability you might want to separate the individual commands with spaces.

On reaching the end of the command line buffer, no further character entry is

possible. The command line can however be edited with the "backspace" key or

executed by pressing "Enter".

3.2 Transmission Mode

After a successful connection setup to a distant terminal, the modem changes

from the command mode to the on-line data mode.

The on-line data mode implies that a connection to a distant data terminal (i.e.

another modem) has been established: The modem is on-line. This applies to a

successful connection setup (outgoing call/ dialing) as well as to the answering of

a call (call accept). In this mode data exchange (data transmission) between two

connected data terminals can take place.

3

To revert to command mode and back again while the connection is up, use the

Escape and ATO commands. The Escape command consists of a sequence of

three Escape characters (default setting: +++) and a valid command line.

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The Escape character is something completely different from the character of

the ASCII character set and can be changed with the S2 register.

After the three Escape characters have been entered, the modem switches to the

command mode. There is, however, no transmission interrupt before a valid

command line is recognized.

1. OnlineMode

2. +++ [2-Second pause]

3. CommandMode

4. ATO

5. OnlineMode

3.3 Quick Reference for AT Commands and Registers

This chart sorted by topic provides frequently used AT commands and registers

which enable you to modify the configuration of your Ethernet modem.

Configuration Commands Registers

Basic modem initialization AT&F

Controls the connection setup (dialing) ATD S37, S102

Call accept, line accept, hang up ATA, ATD, ATH, S0

Switch between command and on-line data mode +++, ATO S2

Read out modem information ATI, ATS, AT%V, AT&V

Employ stored initializations AT&F, AT&W

Controls the effect of DTR AT&D S37

Controls modem responses ATE, ATQ, ATV, AT&D S37

Controls serial speed ATB S31

Password protection ATP, ATZ S81, S82, S83

Callback AT R S110 – S119

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