Chapter Five
Specifications
Man_805U Rev 1.8
Page
31
Reading and Configuring a module
You will need a connection cable between the PC and the 805U. The cable should have
straight-through connections as per section 2.4.1 of this manual. If your PC only has USB
serial connections with no RS232 port, you will need to purchase a USB to RS232 converter
cable.
Select the communications port that you will be using on
the PC - make sure that no other program is using this
com port. The program default is COM1 - if you are
using a different com port, select the “Com Port Settings”
icon from the toolbar and select the com port.
Make sure that the serial data rate and character type is the
same as that already configured in the module. If you are
configuring a new module, then this will be the case. If
you are configuring a module which has already been in
service, and you do not know this information, then you
will need to force the module to factory default settings
using the DIP switches in the module end plate (see section 4.7 of this manual). Note that
when you do this, you will lose all of the configuration in the module.
To read the configuration in a module, connect the cable and select the “Read Configuration”
icon on the toolbar. To configure a module, select the “Configure Module” icon on the
toolbar.
When you read or configure a program, you will see the communication messages between
the program and the module in the “Serial Communications” box in the bottom left hand
corner of the program. The communication messages are Hayes AT commands being
generated or read by the program.
Saving and Opening a configuration file
Configuration details may be saved to disk or read from disk.. To save a configuration file,
select the “Save” icon on the toolbar. The program will ask you for a filename and will give a
file extension of “.05D”. For example, “PLC57.05D”.
To open an archived file, select the “Read” icon on the toolbar.
Modifying an existing configuration
If you read a configuration from a module or a saved file, the program will display the
configuration parameters. You can change these parameters, and then program the module
and/or save the file.
4.4.1
Transparent Mode
The default setting of the program is transparent mode. Select the system address or use the
random value already selected - if the module is to become part of an existing system, then
you must select the same system address as the existing modules. Also select the group
address - only modules with the same group address will communicate with each other.
The “Go On-line On Startup” box will normally be selected for transparent mode. If you
deselect this, then the module will start-up in command mode, and will not operate until the
host device sends it a AT command to go on-line.
