VEGA Phoenix PSI Data Fax Modem User Manual

User Manual

PSI-DATA/FAX-MODEM/RS232
Industrial Modem

Designation:
Order No.:

PSI-DATA/FAX-MODEM/RS232 UM E
26 99 35 4

User Manual
PSI-DATA/FAX-MODEM/RS232 Industrial Modem

Designation:

Revision:

Order No.:

This user manual is valid for:
PSI-DATA/FAX-MODEM/RS232 industrial modem (Order No. 27 08 20 3)

PSI-DATA/FAX-MODEM/RS232 UM E

02

26 99 35 4

© Phoenix Contact 12/2003

692302

Please Observe the Following Notes:

In order to ensure the safe use of your device, we recommend that you read this
manual carefully. The following notes provide information on how to use this
manual.

Requirements of the User Group

The use of products described in this manual is oriented exclusively to qualified
electricians or persons instructed by them, who are familiar with applicable national
standards. Phoenix Contact accepts no liability for erroneous handling or damage
to products from Phoenix Contact or third-party products resulting from disregard of
information contained in this manual.

Explanation of Symbols Used

The attention symbol refers to an operating procedure which, if not carefully
followed, could result in damage to hardware and software or personal injury

The note symbol informs you of conditions that must strictly be observed to achieve
error-free operation. It also gives you tips and advice on the efficient use of
hardware and on software optimization to save you extra work.

The text symbol refers to detailed sources of information (manuals, data sheets,
literature, etc.) on the subject matter, product, etc. This text also provides helpful
information for the orientation in the manual.

We Are Interested in Your Opinion

We are constantly attempting to improve the quality of our manuals.
Should you have any suggestions or recommendations for improvement of the

contents and layout of our manuals, we would appreciate it if you would send us
your comments. Please use the universal fax form at the end of the manual for this.

692302

PSI-DATA/FAX-MODEM/RS232

Statement of Legal Authority

This manual, including all illustrations contained herein, is copyright protected. Use
of this manual by any third party deviating from the copyright provision is forbidden.
Reproduction, translation, or electronic and photographic archiving or alteration
requires the express written consent of Phoenix Contact. Violators are liable for
damages.

Phoenix Contact reserves the right to make any technical changes that serve the
purpose of technical progress.

Phoenix Contact reserves all rights in the case of patent award or listing of a
registered design. Third-party products are always named without reference to
patent rights. The existence of such rights shall not be excluded.

Windows 3.x, Windows 95, Windows 98, Windows 2000, Windows NT,
Windows ME, Windows XP, and MS-DOS are trademarks of the Microsoft
Corporation.

All other product names used are trademarks of the respective organizations.

Internet

Up-to-date information on Phoenix Contact products can be found on the Internet
at www.phoenixcontact.com

Industry Canada Terminal Equipment Technical Specifications

This equipment meets the applicable Industry Canada Terminal Equipment
Technical Specifications. This is confirmed by the registration number. The
abbreviation, IC, before the registration number signifies that registration was
performed based on a Declaration of Conformity indicating that Industry Canada
technical specifications were met. It does not imply that Industry Canada approved
the equipment.

The RINGER EQUIVALENCE NUMBER (REN) for this terminal equipment is 1.0.
The REN assigned to each terminal equipment provides an indication of the
maximum number of terminals allowed to be connected to a telephone interface.
The termination on an interface may consist of any combination of devices subject
only to the requirement that the sum of the Ringer Equivalence Numbers of all the
devices does not exceed five (5.0).

.

692302

Table of Contents

1 PSI-DATA/FAX-MODEM/RS232 Industrial Modem .....................................................1-3

1.2 Application..............................................................................................1-4

1.3 Ordering Data......................................................................................... 1-5

1.3.1 Accessories ............................................................................1-5

1.4 Technical Data........................................................................................1-6

1.4.1 Supply ..................................................................................... 1-6

1.4.2 RS-232 Interface ..................................................................... 1-6

1.4.3 PSTN Port (a/b Line) .............................................................. 1-7

1.4.4 Switching Input and Output ..................................................... 1-8

1.4.5 Text and Telephone Number Memory .................................... 1-8

1.4.6 General Data ..........................................................................1-9

1.5 CE Conformity ...................................................................................... 1-10

2 Quick Installation of a Dial-up Connection....................................................................2-3

2.1 Hardware Installation.............................................................................. 2-3

2.1.1 Default Configuration ..............................................................2-3

2.1.2 Mounting .................................................................................2-4

2.1.3 RS-232 Interface ..................................................................... 2-5

2.1.4 Connecting the Telecommunications Cable ...........................2-6

2.1.5 Supply Voltage ........................................................................ 2-7

2.2 Software Installation ...............................................................................2-8

2.2.1 System Requirements ............................................................ 2-8

2.2.2 Driver Installation .................................................................... 2-9

692302 i

Table of Contents

3 Hardware Installation.................................................................................................... 3-3

3.1 Structure................................................................................................. 3-3

3.2 Operating Elements................................................................................ 3-5

3.2.1 Connection Terminals ............................................................. 3-5

3.2.2 Connectors .............................................................................3-5

3.2.3 LEDs .......................................................................................3-6

3.2.4 Pushbutton ..............................................................................3-6

3.2.5 DIP Switches ..........................................................................3-7

3.3 Electrical Connections............................................................................ 3-8

3.3.1 Block Diagram ........................................................................3-9

3.3.2 RS-232 Interface ................................................................... 3-10

3.3.3 Telecommunications Cable .................................................. 3-12

3.3.4 Supply Voltage ...................................................................... 3-13

3.3.5 Switching Input .....................................................................3-13

3.3.6 Switching Output ................................................................... 3-13

4 Software Installation ..................................................................................................... 4-3

4.1 System Requirements ............................................................................ 4-3

4.1.1 Driver Installation .................................................................... 4-4

4.2 Configuration Software........................................................................... 4-7

4.2.1 Installation ...............................................................................4-7

4.2.2 Operation .............................................................................. 4-10

5 Special Functions ......................................................................................................... 5-3

5.1 Permanent Line ......................................................................................5-3

5.2 Alarm Inputs and Alarms........................................................................ 5-4

5.3 Password Protection............................................................................... 5-7

5.3.1 Selecting a Password .............................................................5-7

5.3.2 Disabling Password Protection ...............................................5-7

5.3.3 Password-Protected Call Back ............................................... 5-8

5.3.4 Dial In With Password Protection ...........................................5-8

5.4 Caller ID and Selective Call Acceptance................................................ 5-9

5.4.1 Caller ID Output ......................................................................5-9

5.4.2 Selective Call Acceptance ......................................................5-9

ii 692302

PSI-DATA/FAX-MODEM/RS232

5.5 DTMF....................................................................................................5-10

5.5.1 DTMF Alarm .........................................................................5-10

5.5.2 DTMF Control ....................................................................... 5-11

5.6 ASCII to Fax Conversion......................................................................5-12

5.7 SMS in the Fixed-Line Network............................................................ 5-14

5.7.1 Sending SMS Messages ......................................................5-14

5.7.2 Receiving SMS Messages .................................................... 5-14

5.7.3 Control via SMS Messages ..................................................5-16

5.8 Setting a Partner Output.......................................................................5-17

5.8.1 Transmitting Local Inputs to the Partner Output ................... 5-17

5.8.2 Switching the Partner Output via AT Commands ................. 5-17

6 AT Commands..............................................................................................................6-3

6.1 Command Descriptions .......................................................................... 6-4

6.2 AT Commands for MNP and LAPM (V.42bis) ......................................6-15

6.3 V.250 Commands Implemented...........................................................6-20

6.4 S Registers........................................................................................... 6-21

6.5 Bell/CCITT Mode.................................................................................. 6-28

6.6 Modem Confirmations .......................................................................... 6-29

6.7 Processing the Break Character........................................................... 6-31

7 Configuration Help........................................................................................................ 7-3

7.1 Programming Connection for Phoenix Contact Controllers.................... 7-3

7.2 Programming Connection for Siemens S7 300/400............................... 7-5

692302 iii

Table of Contents

iv 692302

Section 1

This section provides information about
– The data for the industrial modem

PSI-DATA/FAX-MODEM/RS232 Industrial Modem .........................................................1-3

1.2 Application..............................................................................................1-4

1.3 Ordering Data......................................................................................... 1-5

1.3.1 Accessories .............................................................................1-5

1.4 Technical Data........................................................................................1-6

1.4.1 Supply......................................................................................1-6

1.4.2 RS-232 Interface...................................................................... 1-6

1.4.3 PSTN Port (a/b Line) ............................................................... 1-7

1.4.4 Switching Input and Output...................................................... 1-8

1.4.5 Text and Telephone Number Memory..................................... 1-8

1.4.6 General Data ...........................................................................1-9

1.5 CE Conformity ...................................................................................... 1-10

692302 1-1

PSI-DATA/FAX-MODEM/RS232

1-2 692302

PSI-DATA/FAX-MODEM/RS232 Industrial Modem

1 PSI-DATA/FAX-MODEM/RS232 Industrial Modem

1.1 Description

The PSI-DATA/FAX-MODEM/RS232 DIN-rail
mountable RS-232 modem is specifically designed to
meet industrial demands for remote monitoring. It
provides global access to machines and systems via
permanent and dial-up line connections according to
the V.34 standard. A wide range of security functions,
such as adjustable selective acceptance of calls,
connection establishment with password protection,
and call back function, protect the system against
unauthorized access. One particularly useful feature
for remote system monitoring is the configurable
warning or alarm input. If this input is activated, the
modem calls a user-defined number and sends a
stored text message by fax or SMS. To ensure error­free operation even in harsh EMC conditions, the
device has high-quality 3-way isolation and integrated
surge voltage protection. The modem also features an
integrated automatic "Sleep" function to increase
battery life and an extremely wide supply voltage
range of 10 V to 60 V, making it suitable for universal
use. Modem startup is very easy using plug & play
and user-friendly configuration software. The modem
is approved for use in public telephone networks in
Europe, the USA, and Canada. Additional approvals
can be provided on request.

Should you have any technical questions, please
contact us:

PSM HOTLINE: +49 - 52 35 - 31 98 90
FAX: +49 - 52 35 - 31 98 99
E-mail: [e-mail]

– Can be used globally
– Password-protected access/call back function/

selective acceptance of calls

– Configurable input and output
– Alarm sent directly by SMS or fax via the

integrated switch input (or via AT commands)

– Sends, receives, and evaluates SMS messages
– Wide supply voltage range of 10 V to 60 V DC or

14 V to 40 V AC

– Current-saving "Sleep" mode
– High-quality 3-way isolation

(VCC//RS-232//PTSN)

– Integrated surge voltage protection
– Easy startup using P & P (plug & play) and

user-friendly configuration software

– 3964R-compatible

6 9 2 3 A 0 0 1

692302 1-3

PSI-DATA/FAX-MODEM/RS232

1.2 Application

The PSI-DATA/FAX-MODEM/RS232 modem can be
used universally throughout the world for all popular
modem applications in the following areas:

– Dial-up modem
– Fax modem
– Permanent line modem
– Remote monitoring of systems and machines
– Remote control
– Remote system diagnostics
– Production data acquisition
– Automatic alarm generation

This device has been approved for use in public
telephone networks in the following countries:

– Austria
– Belgium
– Canada
– Denmark
– Finland
– France
– Germany
– Great Britain
– Greece
– Italy
– Ireland
– Luxembourg
– The Netherlands
– Norway
– Portugal
– Spain
– Sweden
– Switzerland
– USA

Approvals for other countries are available on
request.

PS I -D A T A /F A X - M O D E M /R S 2 3 2
O rd .- N o . 2 7 0 8 2 0 3

L I N E
V C C
R D
T D

R E S E T / A L R

A L R

O H
D T R
D C D
E R R

R S 2 3 2

PS I -D A T A /F A X - M O D E M /R S 2 3 2
O rd .- N o . 2 7 0 8 2 0 3

V C C
R D
T D

R E S E T / A L R

A L R
D T R
D C D
E R R

R S 2 3 2

A A

F A X

E C

T e l e p h o n e

n e t w o r k

( P S T N )

L I N E

O H

A A

F A X

E C

PS I -D A T A /F A X - M O D E M /R S 2 3 2
O rd .- N o . 2 7 0 8 2 0 3

V C C
R D
T D

R E S E T / A L R

A L R
D T R
D C D
E R R

R S 2 3 2

Figure 1-1 Dial-up operation

PS I -D A T A /F A X - M O D E M /R S 2 3 2
O rd .- N o . 2 7 0 8 2 0 3

V C C
R D
T D

R E S E T / A LR

A L R
D T R
D C D
E R R

2 0 k m

L I N E

O H
A A
F A X
E C

R S 2 3 2

PS I -D A T A /F A X - M O D E M /R S 2 3 2
O rd .- N o. 2 7 0 8 2 0 3

V C C
R D
T D

R E S E T / A LR

A L R
D T R
D C D
E R R

R S 2 3 2

L I N E

O H
A A
F A X
E C

Figure 1-2 Permanent line operation

PS I -D A T A /F A X - M O D E M /R S 2 3 2
O rd .- N o . 2 7 0 8 2 0 3

L I N E
V C C
R D
T D

R E S E T / A L R

A L R

O H
D T R

A A
D C D

F A X
E R R

E C

R S 2 3 2

T e l e p h o n e

n e t w o r k

PS I -D A T A /F A X - M O D E M /R S 2 3 2
O rd .- N o . 2 7 0 8 2 0 3

V C C
R D
T D

R E S E T / A L R

A L R
D T R
D C D
E R R

L I N E

O H

A A

F A X

E C

R S 2 3 2

( P S T N )

Figure 1-3 Alarm generation

L I N E

O H
A A
F A X
E C

6 9 2 3 A 0 0 2

6 9 2 3 A 0 0 3

S M S

F A X

6 9 2 3 A 0 0 4

1-4 692302

PSI-DATA/FAX-MODEM/RS232 Industrial Modem

1.3 Ordering Data

Analog modem, DIN-rail mountable, dial-up and

standard line operation in Europe, USA, and
Canada, RS-232 interface, 3-way isolation, alarm
input/output, 24 V AC/DC supply voltage

Scope of supply: modem, configuration software,
user manual on CD-ROM, RJ-12 cable

1.3.1 Accessories

Compact power supply,

primary switched, 24 V DC,
1 A, DIN-rail mountable, wide
range input

RS-232 cable, 2 m (6.56 ft.), to
connect the modem to a 9-pos.
device interface

RS-232 cable, 2 m (6.56 ft.), to
connect the modem to a
25-pos. device interface

D-SUB connector 9-pos., with
screw connection and cable
feed

85 - 264 V AC
(at 45 - 65 Hz)
90 - 350 V DC

SUB-D9/SUB­D9
(female/female)

SUB-D9/SUB­D25
(female/female)

Female
connector

Male connector

Type

PSI-DATA/FAX-MODEM/
RS232

MINI-PS-100-240AC/
24DC/1

PSM-KA-9SUB 9/BB/2
METER

PSM-KA-9SUB25/BB/2
METER

SUBCON 9/F-SH

SUBCON 9/M-SH

Order No.

27 08 20 3 1

29 38 84 0 1

27 99 47 4 1

27 61 05 9 1

27 61 49 9

27 61 50 9

Pcs.

pkt.

1

1

692302 1-5

PSI-DATA/FAX-MODEM/RS232

1.4 Technical Data

1.4.1 Supply

Supply voltage

Frequency
Current Consumption

- Nominal operation

- Sleep mode (configurable via software)

Indicator

1.4.2 RS-232 Interface

Connection
Device type
Data format/encoding

Data flow check/protocol

Serial transmission rate

LED data indicator

Control signal indicator

10 V to 60 V DC or 16 V to 40 V AC via plug-in
COMBICON screw terminal block

DC or 50 Hz to 60 Hz

< 100 mA (at 24 V)
< 40 mA (at 24 V)

Green LED (VCC), steady light during operation,
flashes in sleep mode

9-pos. D-SUB male connector
DCE
Serial asynchronous UART/NRZ, 7/8 data, 1/2 stop,

1 parity, 10/11-bit character length
Software handshake Xon/Xoff, direct mode, hardware

handshake RTS/CTS or 3964R
Automatic data rate detection (default) or fixed setting

at 300, 1200, 2400, 4800, 9600, 19200, 38400, 57600,
115200 bps, adjustable via software

Green LED (TD)/yellow LED (RD), transmit/receive
data with reference to PSTN port, dynamic

Yellow LED DTR (Data Terminal Ready)
Yellow LED DCD (Carrier Detect)

1-6 692302

1.4.3 PSTN Port (a/b Line)

PSI-DATA/FAX-MODEM/RS232 Industrial Modem

Connection

Shield
Operating modes

Dial-up method
Transmission rate

- DCE/DCE

- Fax
Compatibility

Fax compatibility
Instruction set compatibility

Error correction
Data compression

LED data indicator

Audible signaling
Operating diagnostics

Adaptive cable test

Telecommunications approvals

Hardware settings

RJ-12, 6-pos. or plug-in COMBICON screw terminal
block

DC coupled on DIN rail
Dial-up modem, 2-wire half/full duplex

Fax modem, 2-wire half duplex
Permanent line, 2-wire full duplex

Multi-frequency/pulse dial configurable via software
Automatic adjustment according to V.8

300 baud to 33.6 kbaud
2400 baud to 14.4 kbaud

ITU V.42bis, V.42, V.34 extended, ITU V.32bis, V.32,
V.21, V.22bis, V.22, V.23, Bell 212A, and 103,
ITU V.17, Group 3 T.4, T.30, and EIA TR-29

EIA TR-29 Class 2, CCITT V.17, Group 3, V.29, V27ter
AT standard instruction set and extended, V.250 basic

instruction set
V.42 (LAP-M or MNP 2 to 4)
V.42bis (throughput 4:1), MNP 5 (throughput 2:1)

Green LED (OH), off the hook
Yellow LED (AA), automatic answer (automatic call

acceptance), flashes during selective acceptance of
calls

Yellow LED (FAX) fax mode active
Yellow LED (EC) error correction in V.42 mode, flashes

when data compression is active
Integrated piezo
Power on selftest, visualization via LEDs (controller,

SRAM, EEPROM, DSP)
Dial tone test, pulse dial ring test via additional function

in configuration software
TBR21, TBR15, TIA/EIA/IS-968

for Europe, USA, and Canada
4-way DIP for dial-up and permanent line operation

(under removable cover)

692302 1-7

PSI-DATA/FAX-MODEM/RS232

1.4.4 Switching Input and Output

Switching input U

Switching output Miniature switching relay 60 V/1 A, N/O contact,

Signaling Red LED (ALR), flashes when an SMS/FAX error

24 V DC/5 mA, input range 9...48 V DC,

Nom

electrically isolated.
Activates one or more of the following:

– A message on the local RS-232
– An SMS (only in dial-up operation)
– A fax (only in dial-up operation)
– Output control at the opposite station

activated by:

– Input control at the opposite station
– An SMS (only in dial-up line operation)
– A local AT command
– An AT command at the opposite station

message is to be sent,
Steady light when alarm has been triggered

Red LED (ERR), if alarm cannot be triggered
Reset (acknowledgment) through:

– SMS (remote)
– AT command (local + remote)
– Pushbutton (local)

1.4.5 Text and Telephone Number Memory

Text memory

SMS
Fax

Telephone number memory

1-8 692302

160 characters
253 characters, 30 kbytes

20 telephone numbers with a maximum of 36 digits

1.4.6 General Data

PSI-DATA/FAX-MODEM/RS232 Industrial Modem

CE conformance
Approvals
Telecommunications approvals

Ambient operating temperature range during
operation

ME 35 housing

- Material

- Dimensions (H x W x D in mm (in.))
Weight of device
Functional earth ground
Vibration resistance

Shock test

- Operation

- Storage
Free fall
Degree of protection
3-way electrical isolation
Test voltage

EMC Directive 89/336/EEC

u (in preparation)

TBR21, TBR15, TIA/EIA/IS-968
for Europe, USA, and Canada

0°C to +55°C (+32°F to +131°F)

With 5 pos. bus contact and ground contact
ABS-V0, green
99 x 35 x 114.5 (3.898 x 1.378 x 4.508)

165 g
Functional earth ground to EN DIN rail in housing
5g according to DIN EN 60068-2-6,

1.5 h each in x, y, and z direction
According to IEC 60068-2-27

15g, 11 ms, half-sine shock pulse
30g, 11 ms, half-sine shock pulse

According to IEC 60068-2-32, 1 m (3.281 ft.)
IP20
Supply//PSTN//RS-232

1.5 kV AC, 50 Hz, 1 min. between all ground levels
according to EN 50178 and EN 61131-2

692302 1-9

PSI-DATA/FAX-MODEM/RS232

c

1.5 CE Conformity

Conforms to the EMC Directive 89/336/EEC
EMC (Electromagnetic Compatibility)
Noise immunity according to EN 61000-6-2

- Electrostatic discharge (ESD)

- Electromagnetic HF field
Amplitude modulation
Pulse modulation

- Fast transients (burst)
Signal
Supply voltage

- Surge current loads (surge)
Signal
Supply voltage

- Conducted interference

- Noise emission according to EN 50081-2

EN 61000-4-2

EN 61000-4-3

EN 61000-4-4

EN 61000-4-5

EN 61000-4-6

EN 55022

Criterion B
8 kV air discharge
6 kV contact discharge

Criterion A
10 V/m
10 V/m

Criterion A
1 kV/5 kHz
2 kV/5 kHz

Criterion B
1 kV
2 kV

Criterion A
10 V

Limiting curve B

EN 61000 corresponds to IEC 1000

Criterion A: Normal operating characteristics within the specified limits.
Criterion B: Temporary adverse effects on the operating characteristics that the device corrects

independently.

1-10 692302

Section 2

This section provides information about
– The data for the industrial modem

Quick Installation of a Dial-up Connection........................................................................ 2-3

2.1 Hardware Installation.............................................................................. 2-3

2.1.1 Default Configuration...............................................................2-3

2.1.2 Mounting..................................................................................2-4

2.1.3 RS-232 Interface...................................................................... 2-5

2.1.4 Connecting the Telecommunications Cable ............................2-6

2.1.5 Supply Voltage......................................................................... 2-7

2.2 Software Installation ...............................................................................2-8

2.2.1 System Requirements ............................................................. 2-8

2.2.2 Driver Installation.....................................................................2-9

692302 2-1

PSI-DATA/FAX-MODEM/RS232

2-2 692302

Quick Installation of a Dial-up Connection

2 Quick Installation of a Dial-up Connection

The quick startup guide only refers to a standard dial-up connection.
For the configuration of permanent line operation, please refer to Section 5.1,
"Permanent Line".

2.1 Hardware Installation

2.1.1 Default Configuration

The modem is preconfigured to dial-up line operation with automatic data rate
detection by default upon delivery, i.e., all DIP switches are set to "OFF".

692302 2-3

PSI-DATA/FAX-MODEM/RS232

2.1.2 Mounting

Only mount and remove modules when the power supply is disconnected.

• Mount the modem on a 35 mm (1.378 in.) EN DIN rail (see Figure 2-1).

The DIN rail must be connected to PE to ensure reliable operation.

6 9 2 3 A 0 3 1

Figure 2-1 Mounting

2-4 692302

Quick Installation of a Dial-up Connection

Electrical connection

Only qualified personnel may electrically connect, start up, and operate this
device. According to the safety instructions in this text, qualified personnel are
persons who are authorized to start up, to ground, and to mark devices, systems,
and equipment according to the standards of safety technology. In addition, these
persons must be familiar with all warning instructions and maintenance measures
in this text.

Disregarding this warning may result in damage to equipment and/or serious
personal injury.

2.1.3 RS-232 Interface

The modem and the PC or another device are connected via the RS-232 cable
PSM-KA-9SUB 9/BB/2 METER (Order No. 27 99 47 4). The cable is an interface
cable with 1:1 connected contacts.

The modem must only be connected to devices which meet the requirements of
EN 60950 ("Safety of Information Technology Devices").

• Use this interface cable to connect the modem to a free COM interface on the

PC.

P C / P L C M o d e m

S U B D

2 5 9

D C D D C D
T x D

R x D
R T S
C T S
D T R
D S R

R I R I
G N D

M a x . 1 5 m
( 4 9 . 2 1 f t . )

S U B D 9

18 1
32 3

23 2
74 7
85 8
42 0 4
66 6

92 2 9
57 5

T x D
R x D
R T S
C T S
D T R
D S R

G N D

6 9 2 3 A 0 3 5

Figure 2-2 RS-232 interface

692302 2-5

PSI-DATA/FAX-MODEM/RS232

2.1.4 Connecting the Telecommunications Cable

RJ-12/RJ-11
connectors

Connect the telecommunications cable to an RJ-12/RJ-11 connector on the front of
the device. Signals "a" and "b" are assigned to the middle pins, 3 and 4.

R J - 1 2

R J 4 5

6 9 2 3 A 0 3 6

n . c .

b 2

b

a

T D

a 2

R D

n . c .
R D

n . c .
n . c .
T D
n . c .
n . c .

P i n 8
P i n 6

P i n 7
P i n 5

P i n 6

-

P i n 4

P i n 5
P i n 4

P i n 3
P i n 3

+

P i n 2
P i n 2

-

P i n 1
P i n 1

+

Figure 2-3 Connection using an RJ-12/RJ-11 connector

Screw terminal blocks Alternatively, the telecommunications cable can be connected via the plug-in screw

terminal blocks. You can also connect the cable shield using an ME shield clamp,
which can be ordered separately (Order No. 28 53 89 9).

n . c . a b

6 9 2 3 A 0 3 7

Figure 2-4 Connection using plug-in screw terminal blocks

2-6 692302

Quick Installation of a Dial-up Connection

2.1.5 Supply Voltage

The PSI-DATA/FAX-MODEM/RS232 module is designed exclusively for SELV
operation according to IEC 60950/EN 60950/VDE 0805.

Connect the 24 V voltage supply to the "24V" and "0V" connection points on the
plug-in screw terminal block.

2 4 V 0 V

2 4 V 0 V n . c . n . c .

i + i -

n . c . a b

6 9 2 3 A 0 3 8

Figure 2-5 Connecting the supply voltage

As soon as the "VCC" LED lights up, the modem is ready for dial-up line operation.

692302 2-7

PSI-DATA/FAX-MODEM/RS232

2.2 Software Installation

2.2.1 System Requirements

In principle, any device can be connected to the modem via a free RS-232 interface.
A terminal program, for example, can be used for configuration. More detailed
information can be found in later sections.

A PC with one of the following operating systems is required for the
PSI-MODEM-CONF configuration software and the plug & play function:

Windows 95, Windows 98, Windows ME, Windows NT4.0, Windows 2000 or
Windows XP.

Driver installation differs depending on the operating system. The following
description uses the example of Windows 2000. During installation, always follow
the on-screen instructions.

In the event of any messages indicating that the software does not have a digital
signature from Microsoft, please confirm with "Yes". This will not affect the
operation of the software or your PC in any way.

2-8 692302

Quick Installation of a Dial-up Connection

2.2.2 Driver Installation

• Connect the modem to the PC as described above and switch on the supply

voltage. After the PC is started the modem is automatically detected and the
driver can be installed:

• Select "Search for a suitable driver for my device (recommended)" and

click on "Next".

692302 2-9

PSI-DATA/FAX-MODEM/RS232

• Insert the CD-ROM provided into the drive and click on "Next".

2-10 692302

Quick Installation of a Dial-up Connection

• Click on "Next" to confirm the selection.

• To complete the installation, click on "Finish".

The driver is now installed and the modem is available to application programs,
e.g., the data communications network.

692302 2-11

PSI-DATA/FAX-MODEM/RS232

2-12 692302

Section 3

This section provides information about
– The installation and connection of your modem

Hardware Installation ........................................................................................................ 3-3

3.1 Structure................................................................................................. 3-3

3.2 Operating Elements................................................................................ 3-5

3.2.1 Connection Terminals.............................................................. 3-5

3.2.2 Connectors .............................................................................. 3-5

3.2.3 LEDs ........................................................................................ 3-6

3.2.4 Pushbutton............................................................................... 3-6

3.2.5 DIP Switches ...........................................................................3-7

3.3 Electrical Connections............................................................................ 3-8

3.3.1 Block Diagram .........................................................................3-9

3.3.2 RS-232 Interface.................................................................... 3-10

3.3.3 Telecommunications Cable ................................................... 3-12

3.3.4 Supply Voltage....................................................................... 3-13

3.3.5 Switching Input ......................................................................3-13

3.3.6 Switching Output.................................................................... 3-13

692302 3-1

PSI-DATA/FAX-MODEM/RS232

3-2 692302

3 Hardware Installation

3.1 Structure

Housing Dimensions

Hardware Installation

1 1 4 . 5 m m

( 4 . 5 0 8 " )

9 9 m m

( 3 . 8 9 8 " )

3 5 m m

( 1 . 3 7 8 " )

P S I - D A T A / F A X - M O D E M / R S 2 3 2
O rd .- N o . 2 7 0 8 2 0 3

L I N E

V C C
R D
T D

R E S E T / A L R

A L R

O H

D T R

A A

D C D

F A X

E R R

E C

6 9 2 3 B 0 3 0

Figure 3-1 Housing dimensions

Only mount and remove modules when the power supply is disconnected.

• Mount the modem on a 35 mm (1.378 in.) EN DIN rail (see Figure 3-2 on

page 3-4).

The DIN rail must be connected to PE to ensure reliable operation.

692302 3-3

PSI-DATA/FAX-MODEM/RS232

Figure 3-2 Mounting

6 9 2 3 A 0 3 1

3-4 692302

3.2 Operating Elements

6

5

4
3

2
1

2 6
2 5
2 4
2 3

2 2
2 1
2 0
1 9

7

8

P S I - D A T A / F A X - M O D E M / R S 2 3 2
O r d . - N o . 2 7 0 8 2 0 3

L I N E

V C C
R D
T D

R E S E T / A L R

A L R
D T R

D C D
E R R

O H
A A

F A X
E C

9

1 0

1 1

1 2

1 3

1 4
1 5
1 6
1 7

Hardware Installation

1 8

6 9 2 3 A 0 3 2

Figure 3-3 Operating elements

3.2.1 Connection Terminals

1 Shield (telecommunications cable) 7 Not used
2 Not used 8 Not used
3 a (telecommunications cable a) 9 in+ (9 V to 48 V DC switching input)
4 b (telecommunications cable b) 10 in– (0 V switching input)
5 24 V supply (10 V to 60 V DC, 16 V to 40 V AC) 11 out (switching output, form A contact)
6 0 V supply (0 V) 12 out (switching output, form A contact)

3.2.2 Connectors

13 Line, RJ-12 (telecommunications cable)
18 RS-232 data interface, 9-pos. D-SUB

692302 3-5

PSI-DATA/FAX-MODEM/RS232

3.2.3 LEDs

14 OH (Green) Off the hook
15 AA (Yellow) Automatic answer (automatic call acceptance), flashes during selective acceptance

of calls

16 FAX (Yellow) Fax mode
17 EC (Yellow) Error correction in V.42 mode, flashes during data compression
19 ERR (Red) Alarm message could not be sent
20 DCD (Yellow) Data carrier detected, connection established with partner
21 DTR (Yellow) Connected device is ready (e.g., PC or PLC)
22 ALR (Red) Alarm message was sent successfully, flashes when sending
24 TD (Green) Transmit data with reference to the PSTN (telecommunications) connection
25 RD (Yellow) Receive data with reference to the PSTN (telecommunications) connection
26 VCC (Green) Supply voltage present, flashes in "Sleep" mode

3.2.4 Pushbutton

23 RESET/ALR Reset alarm message

3-6 692302

3.2.5 DIP Switches

Hardware Installation

1

2

6 9 2 3 A 0 3 3

Figure 3-4 DIP switches

The DIP switches (1) are located behind the cap (2) on the RS-232 interface.

• Insert a small screwdriver into the slot on the bottom of the cap and lever it

open.

DIP Switch Functions

All DIP switches are set to the "OFF" position by default (dial-up line operation).
Switch 1 is used to switch between dial-up line operation (OFF) and permanent line

operation (ON).

The modem cannot be read or configured in permanent line operation.

Switch 2 must be set to the "OFF" position.
The transmission speed is set to 7200 bps in the "ON" position. This transmission

speed is only used for a small number of special applications.
Switch 3 is only used for permanent line operation. In permanent line operation, a

modem must be set to "Originate Mode" (ON) and the partner must be set to
"Answer Mode" (OFF).

692302 3-7

PSI-DATA/FAX-MODEM/RS232

Switch 4 is only used in the event of an emergency. If automatic baud rate

detection has been switched off and the device has been configured to a fixed baud
rate without echo and without confirmation, it is very difficult to detect this baud rate
setting.

• In this case, set switch 4 to "ON" and briefly disconnect the supply voltage. The

Table 3-1 DIP switch assignment

Mode DIP Switch

DIAL-UP OFF
LEASED LINE ON
DEVICE SETTINGS OFF
7200 BPS ON
ANSWER (ANS) OFF
ORIGINATE (ORG) ON
DEVICE SETTINGS OFF
19200 BPS; 8 DATA; ODD; 1 STOP ON

modem now starts with a fixed defined setting: 19200 bps, 8 data bits, odd
parity, 1 stop bit.
In normal operation this switch is set to "OFF", i.e., the device starts with the
last saved settings.

1

2

3

4

3.3 Electrical Connections

Electrical connection

Only qualified personnel may electrically connect, start up, and operate this
device. According to the safety instructions in this text, qualified personnel are
persons who are authorized to start up, to ground, and to mark devices, systems,
and equipment according to the standards of safety technology. In addition, these
persons must be familiar with all warning instructions and maintenance measures
in this text.

Disregarding this warning may result in damage to equipment and/or serious
personal injury.

3-8 692302

4 x C O M B I C O N

0 V

2 4 V

3.3.1 Block Diagram

U

Hardware Installation

2 4 V

5 V

- +

B a c k p l a n e

E E P R O M

i n -

I n p u t O u t p u t

i n +

b

µ C

a

n . c .

P i n 2
P i n 3
P i n 4
P i n 5

P h o n e L i n e

R J 1 2

a 2
a

b
b 2

U

R e s e t
A L R

D 9 - S U B

1 D C D

3

T x D

2

R x D

7

R T S

8

C T S

6

D S R

4

D T R

9

R I

5

G N D

B a c k p l a n e

R S - 2 3 2

6 9 2 3 A 0 3 4

Figure 3-5 Block diagram

692302 3-9

PSI-DATA/FAX-MODEM/RS232

3.3.2 RS-232 Interface

The modem and the PC or another device are connected via the RS-232 cable
PSM-KA-9SUB 9/BB/2 METER (Order No. 27 99 47 4). The cable is an interface
cable with 1:1 connected contacts.

• Use this interface cable to connect the modem to a free COM interface on the

PC.

In rare cases, when connecting a PLC or control system, DCE (Data

Communication Equipment) may be used instead of DTE (Data Terminal
Equipment), which is typical for a PC. If so, the following cables must be crossed

(null modem cable):

– TxD and RxD
– RTS and CTS
– DSR and DTR

If you do not know which type of interface is connected, you can determine the
connect configuration by testing (crossing cables).

Minimum configuration The minimum configuration only requires one connection for TxD, RxD, and GND

(software handshake).
This does not apply to the 3964R protocol for Phoenix Contact controller boards.

Only TxD, RxD, and GND are connected here, but no handshake protocol is
selected.

The modem must only be connected to devices which meet the requirements of
EN 60950 ("Safety of Information Technology Devices").

3-10 692302

P C / P L C M o d e m

S U B D

2 5 9

M a x . 1 5 m
( 4 9 . 2 1 f t . )

S U B D 9

Hardware Installation

D C D D C D
T x D

R x D
R T S
C T S
D T R
D S R

R I R I
G N D

18 1
32 3

23 2
74 7
85 8
42 0 4
66 6

92 2 9
57 5

T x D
R x D
R T S
C T S
D T R
D S R

G N D

6 9 2 3 A 0 3 5

Figure 3-6 RS-232 interface

Table 3-2 Meaning of the terminal designations

Designation Meaning

DCD (Data Carrier Detect) Data carrier detected, connection

established
TxD (Transmit Data) Transmit data (refers to PC, PLC, etc.)
RxD (Receive Data) Receive data (refers to PC, PLC, etc.)
RTS (Request To Send) Request to send
CTS (Clear To Send) Clear to send
DTR (Data Terminal Ready) Ready (PC, PLC, etc.)
DSR (Data Set Ready) Ready (modem)
RI (Ring Indicator) Incoming call
GND (Signal Ground) Signal ground

692302 3-11

PSI-DATA/FAX-MODEM/RS232

3.3.3 Telecommunications Cable

RJ-12/RJ-11
connectors

Connect the telecommunications cable to an RJ-12/RJ-11 connector on the front of
the device. Signals "a" and "b" are assigned to the middle pins, 3 and 4.

The signals for the optional connection of a telephone are fed back to terminals 2
and 5.

R J - 1 2

R J 4 5

6 9 2 3 A 0 3 6

n . c .

b 2

b

a

T D

a 2

R D

n . c .
R D

n . c .
n . c .
T D
n . c .
n . c .

P i n 8
P i n 6

P i n 7
P i n 5

P i n 6

-

P i n 4

P i n 5
P i n 4

P i n 3
P i n 3

+

P i n 2
P i n 2

-

P i n 1
P i n 1

+

Figure 3-7 Connection using an RJ-12/RJ-11 connector

Screw terminal blocks Alternatively, the telecommunications cable can be connected via the plug-in screw

terminal blocks. You can also connect the cable shield using an ME shield clamp,
which can be ordered separately (Order No. 28 53 89 9).

n . c . a b

6 9 2 3 A 0 3 7

Figure 3-8 Connection using plug-in screw terminal blocks

3-12 692302

Hardware Installation

3.3.4 Supply Voltage

The PSI-DATA/FAX-MODEM/RS232 module is designed exclusively for SELV
operation according to IEC 60950/EN 60950/VDE 0805.

The supply voltage must be within the range of 10 V to 60 V DC or 16 V to 40 V AC
(50 - 60 Hz).

Connect the 24 V voltage supply to the "24V" and "0V" connection points on the
plug-in screw terminal block.

2 4 V 0 V

2 4 V 0 V n . c . n . c .

i + i -

n . c . a b

6 9 2 3 A 0 3 8

Figure 3-9 Connections

As soon as the "VCC" LED lights up, the modem is ready.

3.3.5 Switching Input

Table 3-3 Switching input on the plug-in screw terminal block

Connection Meaning

i+ (floating) 9 V to 48 V DC
i– 0 V

3.3.6 Switching Output

The switching output is a floating form A contact and is designed for 60 V/1 A. The
contact is connected to the plug-in screw terminal block marked with the form A
contact symbol (see Figure 3-9).

692302 3-13

PSI-DATA/FAX-MODEM/RS232

3-14 692302

Section 4

This section provides information about
– The installation of the configuration software

Software Installation ......................................................................................................... 4-3

4.1 System Requirements ............................................................................ 4-3

4.1.1 Driver Installation.....................................................................4-4

4.2 Configuration Software........................................................................... 4-7

4.2.1 Installation................................................................................ 4-7

4.2.2 Operation...............................................................................4-10

692302 4-1

PSI-DATA/FAX-MODEM/RS232

4-2 692302

4 Software Installation

4.1 System Requirements

In principle, any device can be connected to the modem via a free RS-232 interface.
A terminal program, for example, can be used for configuration. More detailed
information can be found in later sections.

A PC with one of the following operating systems is required for the plug & play
function:

Windows 95, Windows 98, Windows ME, Windows NT4.0, Windows 2000 or
Windows XP.

Driver installation differs depending on the operating system. The following
description uses the example of Windows 2000. During installation, always follow
the on-screen instructions.

In the event of any messages indicating that the software does not have a digital
signature from Microsoft, please confirm with "Yes". This will not affect the
operation of the software or your PC in any way.

Software Installation

692302 4-3

PSI-DATA/FAX-MODEM/RS232

4.1.1 Driver Installation

• Connect the modem to the PC as described above and switch on the supply

voltage. After the PC is started the modem is automatically detected and the
driver can be installed:

• Select "Search for a suitable driver for my device (recommended)" and

click on "Next".

4-4 692302

Software Installation

• Insert the CD-ROM provided into the drive and click on "Next".

692302 4-5

PSI-DATA/FAX-MODEM/RS232

• Click on "Next" to confirm the selection.

• To complete the installation, click on "Finish".

The driver is now installed and the modem is available to application programs,
e.g., the data communications network.

4-6 692302

Starting installation

Software Installation

4.2 Configuration Software

The PSI-MODEM-CONF software is used to configure the
PSI-DATA/FAX-MODEM/RS232. Your modem has more functions than can be
mapped in the configuration software. To use these functions, enter additional AT
commands in the "Additional Settings" field (see page 4-19). The AT commands
and their meanings are described in Section "Command Descriptions" on page 6-4.

4.2.1 Installation

• Insert the CD-ROM labeled "PSI-MODEM-CONF" into the CD-ROM drive on

your PC.

• Use the Windows Explorer to start the "Setup_Vx.x.xxx(EN).exe" file located in

the "...:\PSI-CONF" directory.

• Close all other applications and click on "Next".

692302 4-7

PSI-DATA/FAX-MODEM/RS232

Accepting the terms of
the license agreement

• Read the terms of the software license agreement thoroughly and click on

You may now select a specific installation folder.
The default setting is "C:\Program Files\PSI-MODEM-CONF".

"Yes" to accept them.

Selecting an
installation folder

• If necessary, select a different folder and click on "Next".

4-8 692302

Start copying

Finishing installation

Software Installation

• Click on "Next" to start copying the files. This may take a few seconds

depending on the system.

• Exit setup by clicking on "Finish".

692302 4-9

PSI-DATA/FAX-MODEM/RS232

4.2.2 Operation

After installation, you will find the following icon on your desktop:

Starting the software Double-click on this icon to start the PSI-MODEM-CONF configuration software.

Figure 4-1 PSI-MODEM-CONF configuration software

4-10 692302

Software Installation

Configuring the
interface

First, you must configure the interface.

• Select the "RS-232" function from the "Options" menu.

• Select the interface to which your modem is connected.

• Adjust the parameters according to your application requirements.

• Save the settings by confirming with "OK".

• Click on the "Write" button to write the settings to the modem.

692302 4-11

PSI-DATA/FAX-MODEM/RS232

• Click on the "Read" button to read data from the connected modem.

The software displays the type and version of the firmware, and the serial number
of the modem.

You now have the option of assigning various functions to the integrated modem
switching input.

4-12 692302

Software Installation

SMS

For this function the modem requires a service provider that supports SMS in the
fixed-line network. The modem is preset to "Deutsche Telekom". A description of
how to set up other service providers appears on page 4-20.

• Select the "SMS" checkbox to activate the SMS function.

• Enter the telephone number of the SMS receiver in the white "Number" field.

• Write your message in the "SMS Messages" field. The text must not exceed

160 characters.

• Click on the "Write" button to write the settings to the modem.

• To send the SMS message, activate the modem switching input (see Section

"Switching Input" on page 3-13).

692302 4-13

PSI-DATA/FAX-MODEM/RS232

Fax

• To activate the fax function select the "Fax" checkbox.

• Enter the telephone number of the fax receiver in the white "Number" field.

• Write your message in the "Fax Message" field. The text must not exceed

253 characters.

• Click on the "Write" button to write the settings to the modem.

• To send the fax message, activate the modem switching input (see Section

"Switching Input" on page 3-13).

You can send fax and SMS messages simultaneously.

4-14 692302

Software Installation

Switching Output

For this function, the partner modem must be a "PSI-DATA/FAX-MODEM/RS232"
modem.

• To activate the switching output function select the "Output" checkbox.

• Enter the telephone number of the partner in the white "Number" field.

If you wish to use the devices in permanent line operation, you can enter any
telephone number.

• Enter the password for the partner in the "Password" field, as the partner

switching output is password-protected.

692302 4-15

PSI-DATA/FAX-MODEM/RS232

• Specify the modem mode:

– In "Set" mode the modem responds to a positive edge on the local input by

– In "Follow" mode the modem responds to a positive edge on the local input by

• Click on the "Write" button to write the settings to the modem.

Line Test

The "Line Test" function can be used to check that the telecommunications cable is
connected correctly.

• Click on the "Line Test" button to start the line test.

calling the partner and setting the partner output. This output can be reset by
an AT command (local or remote), an SMS, the integrated pushbutton or by
briefly disconnecting the supply voltage.

calling the partner and setting the partner output. This output can be reset by a
falling edge on the same input and by calling the partner again.

The result of the line test is displayed on-screen.

The telecommunications cable is connected
correctly.

Please check the telecommunications cable (see
Section "Telecommunications Cable" on page 3-12).

4-16 692302

File Functions

Creates a new project file with the default settings.

Opens a saved project file.

Saves the current settings.

Profile Settings

Click on the "Settings" button .
This opens the "Profile settings" window.

Software Installation

Figure 4-2 "Profile settings" window

692302 4-17

PSI-DATA/FAX-MODEM/RS232

Echo If the echo is on, all characters sent by the PC in command mode are sent back by

the modem. The characters can thus be displayed on-screen on the PC.

DCD Signal When the partner carrier detect signal is detected, the RS-232 interface activates

the DCD signal (Data Carrier Detect). Alternatively, this signal can also be
permanently switched on.

DSR Signal The DSR signal (Data Set Ready) of the RS-232 interface can be permanently

switched on or switched off in command mode.

DTR Signal Your modem can process the DTR signal (Data Terminal Ready) as follows:

– The modem returns to command mode if there is no DTR signal at the RS-232

interface.

– The modem hangs up and returns to command mode if there is no DTR signal

at the RS-232 interface.

– The modem hangs up, is reset, and returns to command mode if there is no

DTR signal at the RS-232 interface.

– The modem ignores the DTR signal. This may be necessary when using a

PLC, as the RS-232 interface of a PLC is often unable to provide a DTR signal.

Flow Control The data flow control of the RS-232 interface can be set for various operating

modes:
– For the "Hardware" setting, the CTS and RTS signals are used for a

bidirectional data flow control.

– For the "Software" setting, the data flow control is bidirectional using XON and

XOFF characters.

– In "XON/XOFF Unidirect" mode, the XON character is sent to the PC (DTE) to

start data transmission and the XOFF character is sent to stop data
transmission. The PSI-DATA/FAX-MODEM/RS232 ignores XON and XOFF
characters sent by the PC.

– Data flow control can also be switched off completely. This may be necessary

when protocols such as 3964R are transmitted, which control the flow
independently.

Compression Data compression on the telecommunications cable results in increased data

throughput.

Modulation Method You can specify the transmission method of your modem (default: CCITT).

Table 6-1 on page 6-28 shows how the various settings work.

4-18 692302

Software Installation

Result Codes Your modem is configured so that it outputs alphanumeric responses on-screen.

The "Numeric" option can be used if your software package or PLC only supports
numeric confirmations. The relevant settings can be found in Table 6-2 on
page 6-29.

Auto Answer Auto Answer (automatic call acceptance) enables you to specify the number of

rings after which your modem can automatically respond to incoming calls.
Automatic call acceptance is switched off by default upon delivery. Active automatic
call acceptance is indicated by the yellow "AA" (Automatic Answer) LED.

This LED flashes in the event of an incoming call, regardless of automatic call
acceptance.

Dial Tone Detection When dial tone detection is switched on the modem waits for the dial tone before

dialing. Dial tone detection should be switched off in an private branch exchange.

Country Code Select the country where you wish to use your PSI-DATA/FAX-MODEM/RS232. If

your country is not listed, select Europe (CTR21) or the USA.

Speaker The internal speaker can be switched off, always on or only switched on when

establishing a connection.

Additional Settings Your modem has more functions than can be mapped in the configuration software.

To use these functions, enter additional AT commands in the "Additional Settings"
field.
The AT commands and their meanings are described in Section "Command
Descriptions" on page 6-4.

Example: Entering L3 increases the speaker volume.

Additional settings can be saved in the project file via the "Save" button. However,
the are not read from the modem by the configuration software.

692302 4-19

PSI-DATA/FAX-MODEM/RS232

SMS Mode When SMS mode is disabled, you can only send SMS messages. In addition, your

service provider must support "SMS in the fixed-line network" (see Section "SMS in
the Fixed-Line Network" on page 5-14).

When SMS mode is enabled, SMS messages received are output to the RS-232
interface. To receive SMS messages, this feature must be supported and enabled
by your SMS provider. In addition, check that the caller ID (CLIP) is transmitted as
far as the modem (usually a problem for many older private branch exchanges).

Enabling SMS receipt using Deutsche Telekom as an example:

• Send an SMS with the text "ANMELD" to telephone number 8888.

• You can log off by sending the text "ABMELD" to telephone number 8888.

In control mode the PSI-DATA/FAX-MODEM/RS232 can be controlled via SMS
messages. For example, you can activate the output, reset the alarm or send the
status of the modem simply by sending an SMS message. In this mode, the SMS
message is not forwarded to the termination equipment, but is evaluated by the
modem itself. The SMS message sent to the modem must be structured as follows:

#<Password>:<Command>

The password is the password stored in the modem (maximum of seven
characters). Please note that not all characters can be sent in the SMS message.
Choose a password according to the SMS character set. If the password is,
e.g., 12345, the message should appear as follows:

#12345:<Command>

The following control commands are available:
RESET Resets the alarm and the switching output

(e.g., AT*AR).

SET:OUTPUT Activates the switching output ("Output").
CLR:OUTPUT Deactivates the switching output ("Output").
SEND:STATUS Sends a status SMS message to the caller.
"Text" Outputs all the characters within the inverted commas

to the RS-232 interface.

Examples #12345:SET:OUTPUT Activates the output.

#12345:SEND:STATUS Sends an SMS message (status report) to the sender.
#12345:"RST PLC" Sends the text RST PLC to the terminal equipment

(RS-232 interface).

#12345:RESET Resets the alarm function and the switching output.

4-20 692302

Software Installation

SMS Provider The number for the SMS provider must be stored in the modem memory. It is set to

Deutsche Telekom by default.

• Select your provider from the list. If your provider is not listed, select "No

Provider" and enter the telephone number of your provider in the "Additional
Settings" field as follows:

&Z20=<Number>

Example for Deutsche Telekom: &Z20=01930100

The number saved manually (&Z20) cannot be read by the configuration
software. Therefore save the profile on the PC and reuse it for the next
initialization.

If your modem is used in a private branch exchange, you can prefix the number for
your service provider with the number for dialing an outside line.

Example: 0,
(The comma represents a short pause.)
The field in front of the service provider name can also be used to enter a call-by-

call number. This is required, e.g., if your service provider does not support SMS in
the fixed-line network. In most telephone networks you then have the option of
selecting a different service provider.

Example for Deutsche Telekom: 01033

Store Numbers You can store ten telephone numbers in Store Numbers 0 through 9, which can be

used as a speed dial memory. The use of stored telephone numbers with the DS=n
command is described on page 6-6.

Store Number 0 has additional special functions. This telephone number is used for
password-protected call back. For a description of the call back function, please
refer to Section "Password Protection" on page 5-7. In addition, this number can
also be used for automatic dialing.

Example: %P1 in the "Additional Settings" field
If the DTR signal is now activated at the RS-232 interface, the modem automatically

dials the number in Store Number 0.
If the modem is configured to "Ignore DTR Signal", the modem dials the phone

number in Store Number 0 as soon as it is powered up.

692302 4-21

PSI-DATA/FAX-MODEM/RS232

Caller ID Mode Caller ID or CLIP (Calling Line Identification Presentation) is the transmission of the

caller’s telephone number. If this function is enabled at your analog connection, the
PSI-DATA/FAX-MODEM/RS232 can detect, output, and evaluate the caller ID.

When the caller ID output function is activated in the PSI-DATA/FAX-MODEM/
RS232, the caller ID, e.g., for Deutsche Telekom is transmitted after the first ring,
i.e., the modem does not accept the call until after the second ring. The caller ID is
then detected by the PSI-DATA/FAX-MODEM/RS232 and output to the RS-232
interface as follows:

<CRLF>RING<CRLF>
CLIP:0401234…<CRLF>
<CRLF>RING<CRLF>

A telephone number is only then output if a valid caller ID has been detected. It is
only output once for each call.

Selective Call Acceptance

If "Selective Answer" is selected, the PSI-DATA/FAX-MODEM/RS232
automatically checks whether, e.g., the service PC is calling the modem and
establishes a connection. Up to two telephone numbers can be stored in the device,
which the modem compares and automatically establishes a connection if they
match. The fields Caller ID 1 and Caller ID 2 are reserved for this function.

If these numbers are stored in these fields and "Selective Answer" is enabled, the
PSI-DATA/FAX-MODEM/RS232 checks each call to see whether one of the saved
numbers has been called. If so, the modem accepts the call and establishes a
connection, regardless of the settings for automatic call acceptance. Your control
system therefore does not have to evaluate the caller ID and the modem makes
sure that the service numbers (Caller ID 1 and Caller ID 2) reach your system, even
without a call back function.

The telephone number evaluation function has a filter function, which also enables
partial evaluation of the telephone number. The evaluation starts with the last digit
and is carried out for each stored digit. If, for example, from the telephone number
0123456789 only the digits 56789 have been stored, all telephone numbers that
end with these digits are classed as valid. The number of preceding digits is of no
importance. The advantage of this is that various formats (e.g., +49 40 xxxxx and
040 xxxxx) can be evaluated.

The "AA" LED flashes to indicate that this mode is active. The call is only accepted
if the stored numbers match. The caller ID is also output.

Password Enter your password here.

4-22 692302

Software Installation

• Click on the "Write" button to write the settings to the modem once they

have all been entered.

692302 4-23

PSI-DATA/FAX-MODEM/RS232

4-24 692302

Section 5

This section provides information about
– The additional functions of your modem

Special Functions ............................................................................................................. 5-3

5.1 Permanent Line ......................................................................................5-3

5.2 Alarm Inputs and Alarms........................................................................ 5-4

5.3 Password Protection............................................................................... 5-7

5.3.1 Selecting a Password .............................................................. 5-7

5.3.2 Disabling Password Protection ................................................5-7

5.3.3 Password-Protected Call Back ................................................ 5-8

5.3.4 Dial In With Password Protection ............................................5-8

5.4 Caller ID and Selective Call Acceptance................................................ 5-9

5.4.1 Caller ID Output....................................................................... 5-9

5.4.2 Selective Call Acceptance .......................................................5-9

5.5 DTMF....................................................................................................5-10

5.5.1 DTMF Alarm ..........................................................................5-10

5.5.2 DTMF Control ........................................................................ 5-11

5.6 ASCII to Fax Conversion......................................................................5-12

5.7 SMS in the Fixed-Line Network............................................................ 5-14

5.7.1 Sending SMS Messages .......................................................5-14

5.7.2 Receiving SMS Messages..................................................... 5-14

5.7.3 Control via SMS Messages ...................................................5-16

5.8 Setting a Partner Output.......................................................................5-17

5.8.1 Transmitting Local Inputs to the Partner Output .................... 5-17

5.8.2 Switching the Partner Output via AT Commands .................. 5-17

692302 5-1

PSI-DATA/FAX-MODEM/RS232

5-2 692302

5 Special Functions

5.1 Permanent Line

The PSI-DATA/FAX-MODEM/RS232 modem supports 2-wire permanent line
operation.

– DIP switches for master/slave selection
– Up to 33600 bps/115200 bps (bidirectional, full duplex)
– Automatic connection/continuous line monitoring
– TBR15 approval
– Transmission via its own telephone cable (2-wire) over a distance of up to

20 km (12.43 mi.)

The device is approved for 2-wire permanent lines according to TBR15, i.e., you
can rent a permanent line for a service provider (e.g., Deutsche Telekom) or use
your own private 2-wire line to then establish a point-to-point connection via this
line.

Setting Permanent Line Operation

The settings for permanent line operation, e.g., data save and choice of
transmission speed must first be set and saved with the AT&W command, as the
modem cannot be parameterized in permanent line operation via the RS-232
interface.

Special Functions

DIP Switches

DIP switch 3 should be set first to specify which modem should operate in
"Originate Mode" (ORG) and which modem should operate in "Answer Mode"
(ANS). One of the modems should be set to ORG mode and the partner modem
should be set to ANS mode.

• Set DIP switch 3 to the desired mode:

DIP 3 = OFF ANS mode
DIP 3 = ON ORG mode

Permanent line operation is configured via DIP switch 1.

• Set DIP switch 1 to the "ON" position.
As soon as the power is switched on, the PSI-DATA/FAX-MODEM/RS232 starts

automatic permanent line operation and establishes a connection with the partner.

692302 5-3

PSI-DATA/FAX-MODEM/RS232

5.2 Alarm Inputs and Alarms

The PSI-DATA/FAX-MODEM/RS232 modem has one electrically isolated input
and one electrically isolated output. Alarm functions can be assigned to the input,
i.e., SMS and/or fax messages can be automatically sent by activating the input
and/or the output of a partner can be activated.

The control system is configured using AT commands (see Section
"AT Commands" on page 6-3).

Configuring the Input

– Command: AT*A1<CR>
Configure the modem via the following menu items:

CONFIG INPUT 1
SMS (Y/N) Y
FAX (Y/N) Y
OUT (Y/N) Y

If you activate the SMS function with Y, you are prompted to enter the destination
number and the text (160 characters maximum) for the SMS message. End the text
entry with ^Z (Ctrl+Z).

Example for an SMS NUMBER <;>TEXT…<^Z>: 0160123456789;Alarm at input 1 pump failure^Z

If you do not wish to send an SMS or fax message during configuration, enter N.
You then do not have the option of entering the SMS or fax message.
Press "ESC" to cancel an entry. This may take a moment, as all messages have to
be reformatted and then saved.

The number must end with ;. In the fax text, <CR> is the code for a line break, the
ASC text is exited via Ctrl+Z. The maximum line length of 60 characters must not
be exceeded.

Example for a fax NUMBER <;>TEXT…<^Z>: 040999888777;<CR>

JohnDoe<CR>
615N10thStreet<CR>
RichmondVA12345-0123<CR>
<CR>
ALARM MESSAGE
<CR>
Heating failure - pump faulty <^Z>

5-4 692302

Special Functions

The number and the password for the partner must be entered for the OUT
configuration. The option can be set to "0" or "1":

Option 0 Set

The partner output is set by activating the local input

Option 1 Follow

The partner output follows the local input. A new call must be made
each time the input changes. Sleep/Power Down mode is disabled in
this mode.

Example for OUT NUMBER <;>PASSWORD<;>OPTION<^Z>: 040999888777;QWERT;0^Z

– AT*A1? command
The AT*A1? command can be used to view the specified configuration again.

Examples AT*A1?<CR>

CONFIG INPUT 1
SMS (Y/N) Y
FAX (Y/N) Y
OUT (Y/N) Y

– SMS (SMS function):
NUMBER <CR>TEXT…<^Z>: 0160123456789<CRLF>Alarm at input 1 pump

failure
– FAX (fax function):

NUMBER <CR>TEXT…<^Z>: 040999888777;<CRLF>
JohnDoe<CRLF>
615N10thStreet<CRLF>
RichmondVA12345-0123<CRLF>
<CRLF>
ALARM MESSAGE
<CRLF>
Heating failure - pump faulty <CRLF>

– OUT (set partner output):
NUMBER <CR>PASSWORD:01291212<CRLF>

QWERT<CRLF>
OPTION:0<CRLF>

When AT*A1?<CR> messages are requested, <CR> is replaced with <CRLF> in
the text. This improves the message display in a terminal program.

692302 5-5

PSI-DATA/FAX-MODEM/RS232

Alarm at the Input:

In the event of an alarm at input 1, the alarm message "INPUT 1 ACTIVE" is first
sent to the local RS-232 interface. The configured messages are then sent with the
following priority:

1. Set output

2. SMS message

3. Fax message

The "ALR" LED starts flashing and does not enter the ON state until all the alarm
jobs have been processed. The PSI-DATA/FAX-MODEM/RS232 modem attempts
to send each message (SMS or fax) up to four times.

If this is not possible, an alarm error is generated and the "ERR" LED lights up. The
"ALR" LED remains lit until the alarm is reset with the AT*AR<CR> command, by
pressing the button on the modem or by an SMS.

The modem cannot be addressed at the RS-232 interface while alarm messages
are being sent.

CTS (Clear To Send) is not active during this time. In the event of an AT from the
control system there is no confirmation.

5-6 692302

Example

Special Functions

5.3 Password Protection

5.3.1 Selecting a Password

The password can contain up to seven characters from the ASCII character set
(1 to 127), excluding question marks. The password is not case sensitive.

If no password is stored, the modem continues to request the stored telephone
details. The password and telephone number can be stored using the *P=x and

&Zn=x commands (see below).

AT&F Load default setting
AT*P=ASDFG1 Enter the password "ASDFG1"
AT&Z0=012345 Enter the call back number
AT%S1 Activate password protection with call back
ATS0=1 Activate automatic call back

– *P=x command
Stores a password in the permanent memory
The *P=x command stores the password x (maximum of seven characters from the

ASCII character set, excluding question marks) in the permanent memory on the
modem. No password is stored on the modem by default. If no password is stored
and the %S1 or %S2 command is activated, the modem skips the password
request stage.

– *P? command
Displays the stored password
The *P? command displays the stored password.
Your modem has a built-in safety function, which can be activated when your

modem is in auto answer mode (see page 6-22).

5.3.2 Disabling Password Protection

The %S0 command disables password-protected call back (see Section
"Password-Protected Call Back" on page 5-8). By default upon delivery, password
protection is disabled.

692302 5-7

PSI-DATA/FAX-MODEM/RS232

5.3.3 Password-Protected Call Back

The %S1 command enables password-protected call back. If you wish to activate
this function, switch your modem to auto answer mode (automatic call acceptance;
ATS0 > 0). Your modem now accepts calls and executes the usual handshake. The
caller is then requested to enter a password. If the password is invalid or the time
allocated for password entry has been exceeded, the caller has two more attempts
to enter the correct password.

When the correct password is entered, the modem aborts the existing connection
to dial the number that is stored in the memory under &Z0. The modem has three
attempts to establish a connection with the call back number.

5.3.4 Dial In With Password Protection

The %S2 command enables password validation when an incoming called is
accepted. In this case, the caller must enter a password after the incoming call has
been accepted. If the password is invalid or the time allocated for password entry
has been exceeded, the caller has two more attempts to enter the correct
password. When the correct password is entered, the modem continues to operate
as usual, otherwise the connection is aborted.

Automatic call acceptance must be activated for all password-protected functions
(see Section "Description of the S Registers" on page 6-22).

5-8 692302

Special Functions

5.4 Caller ID and Selective Call Acceptance

5.4.1 Caller ID Output

Caller ID or CLIP (Calling Line Identification Presentation) is the transmission of the
caller’s telephone number. If this function is enabled at your analog connection, the
PSI-DATA/FAX-MODEM/RS232 can detect, output, and evaluate the caller ID.

The AT%G1 command activates the caller ID output function in the PSI-DATA/
FAX-MODEM/RS232. The caller ID, e.g., for Deutsche Telekom is transmitted after
the first ring, i.e., the modem does not accept the call until after the second ring. The
caller ID is detected by the PSI-DATA/FAX-MODEM/RS232 and output to the
RS-232 interface as follows:

<CRLF>RING<CRLF>
CLIP:0401234…<CRLF>
<CRLF>RING<CRLF>

A telephone number is only then output if a valid caller ID has been detected. It is
only output once for each call. The call is accepted according to S register S0.

5.4.2 Selective Call Acceptance

The PSI-DATA/FAX-MODEM/RS232 can automatically check whether it has been
called from a specific telecommunications cable and establishes a connection. Up
to two telephone numbers can be stored in the device, which the modem compares
and automatically establishes a connection if they match. Store numbers 18 and 19
are reserved for this purpose (&Z18, &Z19).

Example AT&Z18=040 123456789

AT&Z19=0170 123 45 69

If these numbers are stored in these fields and "Selective Answer" is enabled
(AT%G3), the PSI-DATA/FAX-MODEM/RS232 checks each call to see whether
one of the saved numbers has been called. If so, the modem accepts the call and
establishes a connection, regardless of the settings for S register S0. Your control
system therefore does not have to evaluate the caller ID and the modem makes
sure that only the service numbers (&Z18 and &Z19) reach your system, even
without a call back function.

The telephone number evaluation function has a filter function, which also enables
partial evaluation of the telephone number. The evaluation starts with the last digit
and is carried out for each stored digit. If, for example, from the telephone number
0123456789 only the digits 56789 have been stored, all telephone numbers that

692302 5-9

PSI-DATA/FAX-MODEM/RS232

end with these digits are considered as valid. The number of preceding digits is of
no importance. The advantage of this is that various formats (e.g., +49 40 xxxxx
and 040 xxxxx) can be evaluated.

The flashing "AA" LED indicates that this mode is active. The call is only accepted
if the stored numbers match. The caller ID is also output.

5.5 DTMF

DTMF (Dual Tone Multiplexed Frequency) tones are created by superimposing two
tones from different frequency ranges. The tone lasts 100 ms and is followed by a
100 ms pause.

5.5.1 DTMF Alarm

Once the PSI-DATA/FAX-MODEM/RS232 has dialed a phone (an optional CLIP
decoder is useful for identifying the modem), the termination equipment (PC or
PLC) can generate a DTMF message.

An operator can acknowledge the message with a DTMF tone. The modifier L in
the dialing string (ATD1234….L;) enables the DTMF alarm function. After dialing,
the modem switches to command mode and can now output DTMF tones with the
dialing command (ATDT00000000;). In command mode, the device can detect
DTMF tones and forward them to the RS-232 interface.

DTMF: x<CRLF>

This message is output to the RS-232 interface, where x is the DTMF tone
(0 to 9,*,#).

As an alternative to ATDxxxL; the special dialing string ATDxxxK; can be used.
When the ATDxxxK; command is issued, the modem waits for five seconds of
silence after dialing (i.e., no dial tone means the partner has accepted the call).

The S7 timer is no longer valid in command mode.
The connection can only be can be aborted by the ATH or ATZ command.

5-10 692302

Special Functions

5.5.2 DTMF Control

The modem is called by a telephone or calls a telephone. The partner uses DTMF
tones and sends control characters to the modem. The modem decodes these and
outputs the characters to the serial interface.

In order that the modem can be called, this function must be enabled with the ATR1
command. Once the modem has accepted the call, it waits for five seconds for the
DTMF start character (#). If the character is detected, the modem switches to
command mode and sends a signal tone to the partner.

If no start character is detected, the modem starts with the standard modem
handshake. In command mode, the detected DTMF tones are output to the
interface. The start character is not forwarded to the interface.

The S7 timer is no longer valid in command mode.
The connection can only be can be aborted by the ATH or ATZ command.

692302 5-11

PSI-DATA/FAX-MODEM/RS232

5.6 ASCII to Fax Conversion

The PSI-DATA/FAX-MODEM/RS232 supports ASCII to fax conversion. The
modem can automatically generate a fax from a simple ASCII string and send it.
The converted fax is limited to 30 kbytes, i.e., each line is limited to 60 characters.
First, the unique ID should be set once (AT+FLID="123"). It is stored in a non-
volatile memory and can be reset at any time.

Send an ASCII fax:

AT*AF<CR>
NUMBER<;>TEXT…^Z:

Following the AT*AF command, you are prompted to enter the number and text.
The number must end with ;. In the text, <CR> is the code for a line break, the ASCII
text is exited via Ctrl+Z. The maximum line length of 60 characters must not be
exceeded, after which a <CR> is automatically inserted. A maximum of
253 characters in total is permitted.

After exiting the entry (Ctrl+Z) the data is converted into a fax and the specified
number is dialed. The conversion may take a moment (approximately 30 seconds
to 1 minute). The fax is then sent. The fax is acknowledged by the hang-up
message (Class2) and OK (successful) or ERROR (unsuccessful). If unsuccessful,
the command must be repeated.

The following character set is used (characters that do not appear in this character
set are replaced by a space):

Table 5-1 Fax characters

Fax Characters ASCII Characters

20
30
40
50
60
70

to 2F

hex

to 3F

hex

to 104F

hex

to 5F

hex

to 6F

hex

to 7F

hex

hex

hex

hex

hex

hex

hex

!,",#,$,%,&,’,(,),*,+,,,-,.,/
0,1,2,3,4,5,6,7,8,9,:,;,<,=,>,?
@,A,B,C,D,E,F,G,H,I,J,K,L,M,N,O
P,Q,R,S,T,U,V,W,X,Y,Z,Ä,Ö,Ü,ß,_
´,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o
p,q,r,s,t,u,v,w,x,y,z,ä,ö,ü,~

5-12 692302

Table 5-2 DOS Umlauts

DOS Umlaut ASCII Character

84
94
81
8E
99
9A
E1

hex

hex

hex

hex

hex

hex

hex

ä
ö
ü
Ä
Ö
Ü
ß

Table 5-3 Windows Umlauts

Windows Umlaut ASCII Character

E4
F6
FC
C4
D6
DC
DF

hex

hex

hex

hex

hex

hex

hex

ä
ö
ü
Ä
Ö
Ü
ß

Special Functions

Please note, DOS umlauts and Windows umlauts are only valid in 8-bit data
format.

692302 5-13

PSI-DATA/FAX-MODEM/RS232

5.7 SMS in the Fixed-Line Network

You can send and receive SMS messages in the Deutsche Telekom fixed-line
network with the PSI-DATA/FAX-MODEM/RS232. SMS messages can only be
received if this feature has been enabled by Deutsche Telekom and an SMS
message is sent first to log in.

5.7.1 Sending SMS Messages

AT*AS<CR>
NUMBER<;>TEXT…^Z:

Following the AT*AS command, you are prompted to enter the number and text.
The number must end with ;. Exit the message with Ctrl+Z. The message must not
exceed 160 characters.

After exiting the entry (Ctrl+Z), the data is converted and the SMS is automatically
sent. The message is acknowledged by OK (successful) or ERROR (unsuccessful).
If unsuccessful, the command must be repeated.

The number for the SMS provider must be stored in store number 20 (AT&Z20). It
is set to Deutsche Telekom (01930100) by default.

5.7.2 Receiving SMS Messages

When SMS mode is enabled, SMS messages received are output to the RS-232
interface. To receive SMS messages, this feature must be supported and enabled
by your SMS provider. In addition, check that the caller ID (CLIP) is transmitted as
far as the modem (usually a problem for many older private branch exchanges).

The number for the SMS provider must be stored in store number 20 (AT&Z20). It
is set to Deutsche Telekom (01930100) by default.

Enabling SMS receipt using Deutsche Telekom as an example:

• Send an SMS with the text "ANMELD" to telephone number 8888.

• You can log off by sending the text "ABMELD" to telephone number 8888.

5-14 692302

SMS messages are preceded by the caller ID (CLIP) of the service provider. The
caller ID is not transmitted until after the first ring, so that the modem does not
respond to the call until the second ring.

The following command activates the receive SMS function:

AT\S1<CR>

The actual message is transmitted after the first ring (RING) and is structured as
follows:

Example RING

RECEIVE SMS
FROM: 0160123456789
DATE/TIME: 05.03.02 / 16:55:00
MESSAGE: RESET PLC 1234 confirmation to 016012345

The last SMS message is stored and can be viewed again via the AT*AS?
command:

AT*AS?
RECEIVE SMS

FROM: 0160123456789
DATE/TIME: 05.03.02 / 16:55:00
MESSAGE: RESET PLC 1234 confirmation to 016012345
OK

Special Functions

692302 5-15

PSI-DATA/FAX-MODEM/RS232

5.7.3 Control via SMS Messages

The PSI-DATA/FAX-MODEM/RS232 can be controlled via SMS messages. For
example, you can activate the output, reset the alarm or send the status of the
modem simply by sending an SMS message.

This mode is activated using the AT\S2 command. In this mode, the SMS message
is not forwarded to the termination equipment, but is evaluated by the modem itself.
The SMS message sent to the modem must be structured as follows:

#<Password>:<Command>

The password (AT*P=) is the password stored in the modem (maximum of seven
characters). Please note that not all characters can be sent in the SMS message.
Choose a password according to the SMS character set. If the password is set,
e.g., to AT*P=12345 the message should appear as follows:

#12345:<Command>

The following control commands are available:

RESET Resets the alarm and the switching output

SET:OUTPUT Activates the switching output ("Output").
CLR:OUTPUT Deactivates the switching output ("Output").
SEND:STATUS Sends a status SMS message to the caller.
"Text" Outputs all the characters within the inverted commas

(e.g., AT*AR).

to the RS-232 interface.

Examples #12345:SET:OUTPUT Activates the output.

#12345:SEND:STATUS Sends an SMS message (status report) to the sender.
#12345:"RST PLC" Sends the text RST PLC to the terminal equipment

(RS-232 interface).

#12345:RESET Resets the alarm function and the switching output.

5-16 692302

Special Functions

5.8 Setting a Partner Output

5.8.1 Transmitting Local Inputs to the Partner Output

The PSI-DATA/FAX-MODEM/RS232 modem has one electrically isolated input
and one electrically isolated output. Alarm functions can be assigned to the input,
i.e., the partner output, for example, can be activated by activating the input.

The input configuration can be found in Section "Alarm Inputs and Alarms" on
page 5-4.

5.8.2 Switching the Partner Output via AT Commands

The PSI-DATA/FAX-MODEM/RS232 can be used to transmit its input to a partner
output.

Setting/deleting the partner output:

AT*AO<CR>
NUMBER<;>PASSWORD<;>COMMAND^Z:

Following the AT*AO command, you are prompted to enter the number, the
password, and the control command for the partner output. The number must end
with ;. The password length is limited to seven characters.

The following control commands are available:
RESET Resets the alarm and the switching output

(e.g., AT*AR).

SET:OUTPUT Activates the switching output ("Output").
CLR:OUTPUT Deactivates the switching output ("Output").
"Text" Outputs all the characters within the inverted commas

to the RS-232 interface.

After exiting the entry (Ctrl+Z) an attempt is made to contact the partner and
transmit the control command. The message is acknowledged by OK (successful)
or ERROR (unsuccessful). If unsuccessful, the command must be repeated.

692302 5-17

PSI-DATA/FAX-MODEM/RS232

5-18 692302

Section 6

This section provides information about
– The various AT commands

AT Commands.................................................................................................................. 6-3

6.1 Command Descriptions .......................................................................... 6-4

6.2 AT Commands for MNP and LAPM (V.42bis) ......................................6-15

6.3 V.250 Commands Implemented...........................................................6-20

6.4 S Registers........................................................................................... 6-21

6.5 Bell/CCITT Mode.................................................................................. 6-28

6.6 Modem Confirmations .......................................................................... 6-29

6.7 Processing the Break Character........................................................... 6-31

692302 6-1

PSI-DATA/FAX-MODEM/RS232

6-2 692302

6 AT Commands

Your modem stores its operating characteristics in a non-volatile memory
(EEPROM). These characteristics can be overwritten using commands and can
thus modify the method of operation of the device. The modem executes
commands as long as it is in command mode. Your modem is automatically in
command mode until you dial a number and establish a connection. You can enter
commands for your modem using appropriate communication software
(e.g., HyperTerminal). The device supports data transmission speeds of 300, 1200,
2400, 4800, 9600, 19,200, 38,400, 57,600, and 115,200 bps.

Make sure that the baud rate setting for your COM port in your communication
software corresponds to one of these speeds.

Modes

The modem can be operated in two modes:
– Command mode: The modem can be configured and controlled via AT

commands. As soon as a connection is established, the modem automatically
switches to data mode.

– Data mode: In this mode, the modem transmits data to the partner.

Command Structure

All commands transmitted to the modem must start with AT and must be confirmed
by pressing ENTER. The commands can be entered in either upper or lower case,
but not a mixture of the two. Spaces may be inserted between the commands so
that the command lines are easier to read.

AT Commands

AT deletes the last command line executed by your modem (if present) and

prepares your modem for the new command line. In addition, AT informs your
modem of the transmission speed, parity, and character length.

For commands that must be specified by a parameter, a missing parameter
corresponds to parameter 0, e.g., ATM = ATM0.

Correcting a Typing Error

If you make a mistake when entering a command, you can correct it using the
backspace key. Pressing the backspace key deletes the last character entered. The
AT at the start of the command line is not deleted.

692302 6-3

PSI-DATA/FAX-MODEM/RS232

Repeating the Previous Command

You can instruct your modem to repeat the last command by entering A/ in
command mode. AT is not entered for this command and it does not have to be
confirmed by pressing ENTER, i.e., the command is repeated as soon as A/ is
entered.

6.1 Command Descriptions

AT Attention String

AT is the prefix of a command line and must be entered at the start of each

command line (except for the A/ command or the +++ Escape string). The Attention
characters transmit the transmission speed, character format, and parity of your PC
or terminal to your modem.

If you attempt to execute a command line that does not start with AT, an error
message is generated (except when repeating a command with A/ or using the

+++ Escape string).

A Manual Answering

Use the A command to manually answer a call. The A command can also be used
to convert voice communication into data communication: Once you have
completed the spoken part of the call, the caller enters the ATD command and
ENTER to enable data transmission. The partner responds with the ATA command
and ENTER. Your modem does not execute any commands that appear after the
A in the command line. You must therefore enter all settings before the A
command.

A/ Repeat the Previous Command

The A/ command instructs the modem to repeat the last command line (i.e., the last
command that it stored in its memory). You can use the A/ command to redial a
number if the line was busy on the first attempt or it could not connect.

The A/ command does not have to be preceded by AT or confirmed by pressing
ENTER. You can use the A/ command to repeat the last command line as many
times as you wish until the command is deleted from the modem memory by
either resetting the modem or entering a new command line.

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B Set Transmission Method

The B command can be used to operate your modem in Bell and/or CCITT mode
depending on the DTE baud rate and on whether your modem is generating or
answering a call. Table 6-1 on page 6-28 shows how this command works.

DDialing

The D command instructs your modem to dial a number. Enter the number that wish
to dial after the D command. You can modify the D command with the following
additional commands:

P Pulse Dialing

The P modifier generates the call using pulse dialing (German standard).
Enter the modifier after the command, followed by the desired telephone
number.

T Tone Dialing

The T modifier instructs the modem to use tone dialing. Enter the modifier
after the command, followed by the desired telephone number.

W Wait for a Dial Tone

The W modified instructs the modem to wait for a second dial tone. Use
this command in private branch exchanges to wait for a dial tone after
calling an outside line.

Example: ATDP0W555-1111
This command dials 0 for an outside line, waits for a second dial tone and
then dials the number 555-1111.

,Pause

This modifier inserts a 2-second pause before dialing. If, for example, your
modem is located in a private branch exchange (e.g., in offices), where a
number (usually 0) must be dialed for an outside line, insert a comma
between the 0 and the actual telephone number you wish to dial. Your
modem dials 0, waits for two seconds and then dials the telephone
number. If a longer pause is required, you can either insert another comma
in the command line or change the value of the S8 register (see
page 6-23).

@ Wait for Five Seconds of Silence

This modifier instructs the modem to wait until no tone has been detected
on the line for five seconds before dialing the specified number.

AT Commands

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PSI-DATA/FAX-MODEM/RS232

! Dial an Outside Line/Divert Calls

Use this modifier to divert a call. Enter the telephone number that is to be
dialed first, then the ! modifier followed by the telephone number to which
the call is to be diverted. Once the modem has established a connection
with the first telephone number, it waits for two seconds and then diverts
the call.

> Dial an Outside Line via a Ground Button
; Return to Command Mode

If your modem is to call another modem and then return to command mode
without disconnecting, enter the ; modifier as the last character in your dial
command line.

L; DTMF Alarm Mode, Without Waiting for Silence

See Section "DTMF Alarm" on page 5-10.

K; DTMF Alarm Mode, With Waiting for Silence

See Section "DTMF Alarm" on page 5-10.

DS=n Dial One of the Stored Telephone Numbers

The DS=n command instructs the mode to dial one of 20 telephone numbers,
where n is a value from 0 through 20. Use the &Z command to store telephone
numbers (see page 6-12).

Example: ATDS=1
The modem dials the telephone number in store number 1.

EEcho

Your modem is set by default to display commands on the PC screen in command
mode (echo). This feature is only necessary if your PC is configured for full duplex
mode.

Most systems operate in full duplex mode. In this case, you can enable the echo
function with the E1 command.

If you are working in half duplex mode, you must disable the echo function with
the E0 command.

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+++ Escape String

The escape string can be used to switch your modem from data mode to command
mode without losing the connection with the partner. When you enter the escape
string, your modem outputs an OK message to inform your that it is in command
mode.

Enter ATO to return to data mode and confirm by pressing ENTER. Enter ATH to
hang up and confirm by pressing ENTER.

H Hook (Hang Up)

H0 The modem hangs up.

I Identification

I0 Display the ID number for your modem.
I1 Display the ROM checksum for your modem.
I2 Execute a memory test and output an OK message if the test was

successful.

I3 Display the V.42bis ID number for your modem.
I4 Display the internal ID for your modem.
I8 Display the serial number for your modem.

AT Commands

L Volume Control

L0 Low volume
L1 Low volume
L2 Medium volume
L3 High volume

M Speaker

M0 Speaker off
M1 Speaker on during the connection phase
M2 Speaker always on

692302 6-7

PSI-DATA/FAX-MODEM/RS232

O Data Mode/Fall Forward/Fall Backward

O0 Return to data mode if you switched to command mode using the escape

string.

O1 Adjustment after returning to data mode.
O2 Adjustment by increasing the speed (Fall Forward) in increments of

1200 bps after returning to data mode.

O3 Adjustment by decreasing the speed (Fall Backward) in increments of

1200 bps after returning to data mode.

This function is useful if errors emerge, e.g., due to modifying the telephone line
attributes. The Fall Forward/Fall Backward options enable the user to set the
required transmission speed.

P Pulse Dialing

This command sets pulse dialing by default for your modem (see D command).

Q Modem Messages

Q0 Information from the modem about its status and display confirmations on

your PC screen.

Q1 Disable confirmations. This may be necessary, e.g., if a PLC is connected

to your modem and responses would interfere.

Q2 Display confirmations only when the modem has established a

connection.

R DTMF Remote Configuration

R0 DTMF remote configuration off
R1 DTMF remote configuration on

Sr? Read the Modem Register

Your modem has 29 registers (0 through 28), which are used to set the operating
parameters. Sr? can be used to read the values set in the registers.

Sr=n Set Register Values

Sr=n can be used to modify the register values for your modem (see Section

"S Registers" on page 6-21).

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T Tone Frequency Dialing

Tone frequency dialing is stored by default.

V Alpha or Numeric Responses

Your modem displays responses on-screen.

V0 Display numeric confirmations. This option can be used if your software

package or PLC only supports numeric confirmations.

V1 Display alpha confirmations (default).

W Additional Confirmations

The W command enables or disables the MNP/V.42, CONNECT, and CARRIER
additional confirmations and determines whether the modem is specifying the DCE
speed (modem speed) or the DTE speed (PC speed).

W0 Disable additional confirmations and display the DTE speed

(e.g., CONNECT 115200).

W1 Enable additional confirmations and display the DCE speed.

CARRIER 33600
PROTOCOL: LAP-M
COMPRESSION: V.42BIS
CONNECT 115200/ARQ

W2 Disable additional confirmations and display the DCE speed

(e.g., CONNECT 33600).

AT Commands

X Confirmation Settings

The X command can be used to control the way in which your modem responds to
specific events. There are five different command sets for answering:

X0 Hayes Smart Modem 300-compatible answering/dummy dialing

(private branch exchange)

X1 As X0 plus all CONNECT answering/dummy dialing

(private branch exchange)

X2 As X1 plus detection of dial tone/proceed-to-dial tone (outside line)
X3 As X1 plus detection of engaged tone/dummy dialing

(private branch exchange)

X4 All answering and detection of dial tone and engaged tone

692302 6-9

PSI-DATA/FAX-MODEM/RS232

Y Break Signal

Y0 No transmission of break signals and no response to them.
Y1 Response to break signals. The device sends a break signal for four

seconds before disconnecting. In addition, it aborts an active connection
when it receives a break signal for 1.6 seconds from the partner.

Z Reset

Use the Z command to reset your modem. Your modem then hangs up and loads
configuration profile 0 or 1. This command must be the last one in the command
line.

Z0 Reset and activate stored configuration profile 0.
Z1 Reset and activate stored configuration profile 1.

&C Carrier Detect Signal

&C0 Continuous activation of the carrier detect signal for your modem.
&C1 Set the RS-232-C carrier detect signal for your modem (DCD) when the

modem detects a carrier detect signal from the partner (default).

&D Data Terminal (PC) Ready Signal (DTR)

&D0 Ignore the status of the DTR signal. The DTR signal is always activated,

even when your PC is switched off.

&D1 Reset to command mode if the modem detects a falling edge on the DTR

line.

&D2 Hang up and reset to command mode if the modem detects a falling edge

on the DTR line.

&D3 Hang up, reset, and switch back to command mode if the modem detects

a falling edge on the DTR line.

&E Automatic Speed Adjustment (Fall Forward/Fall Backward)

This feature automatically adjusts the speed if the transmission quality deteriorates
while connected.

&E0 Disable automatic speed adjustment (default).
&E1 Enable automatic speed adjustment.

&F Factory Configuration

The &F command (default) restores the factory settings with V.42bis and enables
hardware flow control.

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&K Set DTE Flow Control

The &K command specifies the type of data control that is set between the modem
and the local PC to prevent overruns. Your modem has type types of data flow
control. The selected function depends on the requirements of your PC.

&K0 Disable data flow control.
&K3 Use CTS/RTS signals for bidirectional data flow control. The CTS signal

starts or finishes data transmission from the PC or terminal. The RTS
signal control data transmission to the PC.

If the RTS is disabled, data transmission is finished. If it is enabled, the
modem sends data to the PC.

&K4 Select data flow in both directions (XON/XOFF).
&K5 Select data control in one direction. The modem sends the ASCII

characters XON to the DTE to start data transmission or the ASCII
characters XOFF to end data transmission. However, the modem ignores

XON/XOFF characters that are sent by the DTE.

&O Local Switching Output

&O0 Reset the local switching output.
&O1 Set the local switching output.

AT Commands

&S DSR Options

&S0 Enable the DSR signal (default).
&S1 Enable the DSR signal during the handshake and in data mode and

disable it in test or silent mode.
The DSR is activated when the carrier detect signal is lost.

&V Display Configuration Profiles

The &V command can be used to activate and store the configuration profiles and
to view the first three telephone numbers that are stored on your modem. Any
commands or registers that appear in the active or stored commands, but are not
described in the user manual, can be ignored.

This command can not be activated when the modem is online.

692302 6-11

PSI-DATA/FAX-MODEM/RS232

&W Save Active Configuration

This command saves the active configuration in the permanent memory.

&W0 Store the active settings as configuration profile 0.
&W1 Store the active settings as configuration profile 1.

&X Synchronous Pulse Generator

The &X commands specifies the device for which the synchronous pulse generator
is available.

&X0 Generation of the synchronous pulse generator by the modem itself.
&X1 Accept the synchronous pulse generator of the PC or terminal.
&X2 Derive the synchronous pulse generator from the signal of the partner

modem.

&Y Select Active Profile

The &Y command specifies which stored profile is loaded when the modem is
switched on or reset.

&Y0 Use configuration profile 0 (default).
&Y1 Use configuration profile 1.

&Zn=x Store a Telephone Number in the Permanent Memory

The &Zn=x command stores a telephone number (x) (36 digits maximum) in the
permanent memory of the modem. Your modem can store up to 20 telephone
numbers (n = 0 through 20).

%D Clear Down Signal

The %D command specifies whether a Clear Down Signal is used when the
connection is aborted.

%D0 Disable the Clear Down function.
%D1 Enable the Clear Down function (default).

%F Full Duplex/Half Duplex

The %F command switches between half duplex and full duplex mode.

%F0 Full duplex
%F1 Half duplex mode (V.23 only)

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