8.5 SYSTEM - "PLC" softkeys
You can select the following modem types via toggle field:
● Analog modem
● ISDN box
● Mobile phone
When you want to enter several AT command sets, you have to start with AT only once and
simply have to add all other commands, e.g. AT&FS0=1E1X0&W.
Refer to the manufacturers' manuals to look up the commands and their parameters, as they
sometimes differ even between the devices of one manufacturer. The default values of the
control system are therefore only a real minimum and should be verified in any case before
they are used for the first time.
Use this softkey to activate the connection between the control system and the PC. The
program waits for the call of Programming Tool PLC802. No modifications to the settings are
possible in this state.
The softkey label changes to "Connection inactive".
By pressing "Connection inactive", the transfer from the control system can be terminated at
any point. Now it is possible again to make changes in the settings.
The active or inactive state is kept even after Power On (except power-up with the default
data). An active connection is displayed by a symbol in the status bar.
Press "RECALL" to exit the menu.
Use this function to display and change the current states of the memory areas listed in the
It is possible to display 16 operands at the same time.
Table 8- 7
The types of both communication partners must match with each other.
Input byte (IBx), input word (Iwx), input double-word (IDx)
Output byte (Qbx), output word (Qwx), output double-word (QDx)
Flag byte (Mx), flag word (Mw), flag double-word (MDx)
Data byte (Vbx), data word (Vwx), data double-word (VDx)
Programming and Operating Manual, 11/2012, 6FC5398-5CP10-3BA0