iTOOL Project design via modem connection B 70.4090.2

iTOOL Project design via modem connection B 70.4090.2
iTOOL
Project design via
modem connection
B 70.4090.2
03.2001/00365503
1 What you need
Modem 1
Modem 2
The following components are required for setting up
a modem connection between a PC and a JUMO
mTRON automation system:
- IBM-compatible PC with Windows 3.11 or
Windows 95 operating system
- One modem1 for connection to a PC
- The second modem1 is connected to any mTRON
module of the JUMO mTRON automation system
via the interface cable2 that is available as an accessory.
1. Modems are available through JUMO for rail mounting,
or in external version.
2. PC interface Part No. 00353766
1
2 Configuring the modem
The modems have to be configured before starting up
the modem connection for project design.
Nonvolatile
memory
The modem configurations are stored inside the modem in a non-volatile memory. If one of the modems
is switched on, the configuration that was stored will
be loaded automatically.
Terminal
program
Both modems are configured via a terminal program
for PC. A terminal program is generally included in the
modem delivery. As an option, the terminal program
within Windows can also be used.
Comprehensive information on connection and modem operation from a PC can be found in the Operating Instructions for the modem, as well as in the Windows online help.
Marking
the
modems
The two modems have different configurations. To
avoid confusion, the modems should be marked on
the housing.
AT
The modem is configured via the usual AT commands
commands (AT = attention). After switching on, the modem is in
command mode. The modem recognises commands
by the character sequence “AT”.
All the characters that follow will be interpreted as a
command.
AT commands can be entered via a terminal program,
for example.
Example of “ATZ”
AT
AT = attention
commands Z = modem reset
2
2 Configuring the modem
Serial
interface
The serial interface provides the link between the PC
and the modem.
For configuration and project design, the parameters
of the serial interface have to be set in the terminal
program as follows:
Baud rate
Data bits
Parity
Stop bits
4800
8
No (no parity)
1
3
2 Configuring the modem
2.1 Configuration of the modem on the mTRON side
Connection
In order to configure the modem, it is necessary to
connect it to the PC, as described in the Operating Instructions for the modem.
Entering
Commands are entered via the terminal program.
commands Every individual command is terminated with R
and sent to the modem.
Commands
For the modem on the mTRON side, the following
commands must be carried out in the sequence
indicated:
Command
AT&F0
AT&K0
AT&D0
ATS0=1
ATQ1
AT&W0
AT&Y0
ATZ
Connection to the
mTRON
module
4
Description
Load factory setting
Data flow check switched off
DTR evaluation switched off
Modem answers after first ring
Modem messages off
Store current configuration as user
profile 0
User profile 0 is loaded after switching on
the modem
Modem reset
After the modem has been configured, it can be connected to any mTRON module of the JUMO mTRON
automation system via the PC interface cable that is
included in the delivery.
2 Configuring the modem
2.2 Configuration of the modem on the PC side
There are two alternatives for configuring the modem
on the PC side:
a. Configure modem permanently for the
JUMO mTRON-iTOOL project design software
b. Configure modem for the JUMO mTRON-iTOOL
project design software only when required
Commands for
alternative
a.
Command
AT&F0
AT&K0
AT&D2
ATX3
ATQ0
AT&W0
AT&Y0
ATZ
Description
Load factory setting
Data flow check switched off
Modem hangs up on loss of DTR signal
Define modem messages
Switch on modem messages
Store current configuration as user
profile 0
After the modem has been switched on,
the user profile 0 is loaded
Modem reset
Connection to a
PC
After the modem has been configured, it must be
connected to the PC from which the project design of
the remote JUMO mTRON automation system is to
be performed (see Operating Instructions for modem).
Alternative b.
The configuration of the project design software and
setting up a connection via a modem is fully described in Chapter “Modem connection” of the System Manual Part 2 “JUMO mTRON-iTOOL project design software”.
5
3 Connection
6
Interface
cable
Modem on
mTRON
side
Telephone
line
PC with
JUMO mTRON-iTOOL
project design software
installed
Serial connection
to the PC
Modem on
PC side
Any
mTRON module
In order to carry out project design for a remote
JUMO mTRON automation system via a modem connection, the individual components must be connected as shown in the picture below.
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