Communication Log

By clicking on the Monitor button of the Communication dialog box, one can control in real time the data exchanged on a specific communication port on a line monitor screen.

On the monitor line screen, the transmitted frames are displayed in red, the received frames are displayed in green. The frames can be displayed in ASCII or hexadecimal.

The time between 2 consecutive frames is displayed on the left, in milliseconds.

The Communication log option of the Communication dialog box enables to record in a file the data transmitted and received on a port during a communication.

The name of the record file has the form "PORTx.LOG", x being the number of the concerned port. This file is recorded in the directory of the application and reset for each communication.

When a call doesn't succeed, the record file is saved with a name of the form "PORTx_n.LOG", x being the number of port concerned and n a number of 0 to 9 automatically incremented for each new file. When there are more 10 files of fail recording, oldest is replaced by the new.

The recording format is:

"S:xxxxx<CR><LF>" for the character strings "xxxxx" transmitted

"R:xxxxx<CR><LF>" for the character strings "xxxxx" received

The non displayable characters are represented by their mnemonic code between characters "< >" (< CR >, < LF >,...) for codes between 00h and 1Fh and by their hexadecimal code between "< >" for codes between 80h and FFhs.

When transmitting audio data blocks (vocal communication) or fax data blocks (fax communication), data of each transmitted block are symbolized by the label < DATA >.

This option is useful only for diagnostic if a problem appears with the use of a particular communication driver. In normal situations it should not be activated.