α
2 Simple Application Controllers
Function Block Programming 2
2 - 2
2.1.1
Inputs
The
α
2 Series Controller will accept both digital (On/Off) and analog (mV value based)
electrical information through the system Inputs. Please refer to the
α
2 Hardware Manual for
electrical information, wiring diagrams and input specifications. Depending on the specific
controller there are either 14 or 24 input version types of the
α
2 Series Controller. The Inputs
are referenced to I01, I02, ..., I15.
Table 2.1: Input type for the
α
2 Series Controller
2.1.2
Front Panel Keys
The front panel keys can enter data into the program memory, move through menus or
programs, select programming options, or be used as extra inputs when the program is
running. There are eight keys which are referenced as K01 - K08.
Table 2.2: Front panel keys for the
α
2 Series Controller
If the front panel keys are used as auxiliary inputs on the FBD, their primary function, as front
panel display navigators, will be disabled.
Input
Input Number
Description
Signal
I01 - I15
Maximum of 15 Inputs are allocated for use.
AS-i
E01 - E04
Maximum of 4 AS-interface inputs are allocated for use.
Analog
A01 - A08
Maximum of 8 Analog inputs are allocated for use on input I01 to I08.
Extension
EI01 - EI04
Maximum of 4 Extension inputs are allocated for use.
Key Name
Key number
Key Function
OK
K01
Used to enter menu options, confirm data entry, and manually force
inputs ON/OFF in the monitor function.
ESC
K02
Used to cancel an operation, move to a higher level screen, or to
move to a new menu.
“+”
K03
Used to connect (or “add”) function blocks, increase Direct Set input
values or times, or move through programs or menus.
“-”
K04
Used to disconnect function blocks, decrease Direct Set values or
times, or move through programs or menus.
( )
K05
Scroll up through menu options (menus, keys, FB, Inputs, Outputs,
etc.)
( )
K06
Scroll down through menu options (menus, keys, FB, Inputs, Outputs,
etc.)
(
)
K07
Move to the right on the LCD display, FB program, or Jump command
( )
K08
Move to the left on the LCD display, FB program, or Jump command
