Chapter 3 Program Tools
46
LCD Display and Keypad
Keypad
Most SG2 CPU units include the built-in LCD Display and Keypad. The keypad and display are most often used
for changing timer/counter set points, controller mode changes (Run/Stop), uploading/downloading to the PM05
memory cartridge, and updating the RTC (Real Time Clock/Calendar). Although, logic programming can be
performed from the keypad and display, it is highly recommended to only perform logic changes using the SG2
Client software. Below is an overview of the basic keypad and display functions.
Select (SEL)
– Used to select the available memory and instruction types for editing. Holding the Select button will
display all “H” HMI/Text messages on the LCD.
OK
– Used to accept the selection displayed of an instruction or function. It is also used to select any of the Main
Menu options on the LCD.
Note: Press the “SEL” and “OK” simultaneously to insert a rung above the current active cursor position.
Escape
– Used to exit a selected display screen and go to the previous screen. When in a ladder display screen, press
the ESC to display the main menu.
Delete
– Used to delete an instruction or rung from the ladder program.
The 4 navigation buttons (
↑←↓→
) are used to move the cursor throughout the functions of the SG2 display or
active program. The 4 buttons also can be set programmable input coils Z01-Z04 (‘
↑
’= Z01, ‘
←
’=Z02, ‘
↓
’=Z03, ‘
→
’
=Z04);
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