8. Process control via function keys
8. Process control via function keys
Ex.
MAGELIS terminals can control the control system via the function keys
(Static or dynamic for the XBT-PM). Two types of control are possible :
Momentary contact command
By pressing a function key, the system is activated. The action stops when the key is released.
Motor command xxxxxxx
B
Ex.
Push on/push off toggle command
The control system is activated by pressing a function key. The action is halted by pressing the function key again.
Forward command for a conveyor
ADVANCE TROLLEY
Magelis
XBT-L1000 software can be used to assign a bit to each function key, as well as to determine the type of control.
XBT-P XBT-PM XBT-E XBT-H, XBT-HM except XBT-H00xxxx,
XBT-H01xxxx, XBT-
H811050, XBT-
HM007010 and 017xxxx
Magelis B - 35
8. Process control via function keys
Ex.
Assigning function keys using XBT-L1000
The dialog table (
see chapter C, "5. Contents of the dialog table",
Page 11 ) is used for dialog between the PLC and the terminal. In this
table, words are reserved for the indication of the state of the function keys in the form of a word bit : bit at 1 = key pressed
%MWn
Bit 15
F16
Bit 0
F1
%MWn+1
Bit 7
F24
Bit 0
F17
PLC TERMINAL
Press key
F1
Dialog table
%MWn,0
1
%MWn,0
Magelis
The terminal writes to the PLC dialog table. It is not necessary to write a program in the PLC to control the communication.
There is no reserved word for dynamic function keys (XBT-PM). So, a word out of the dialog table must be used.
For more informations,
see chapter D, "Displaying a page via a function key", Page 14 .
XBT-P XBT-PM XBT-E XBT-H, XBT-HM except XBT-H00xxxx, XBT-
H01xxxx, XBT-H811050, XBT-
HM007010 and 017xxxx
B - 36 Magelis
