gefran 2850T, Инструкция по использованию и установке, Страница: 65 / 166

63
4. CONFIGURATION
80703B_MHW_2850T/3850T_02-2019_ENG
Special mathematical functions
Diagram
Formal language
Description
Inputs
Outputs
Timer
no.
type
no.
type
OUT = MAX L(B)RS:(A)
Out = highest value of A fr
om last
reset (input B) (**)
2
Only
digital variables ar
e admitted on input
A such as: •
Digital inputs/outputs
•
Merker
•
Retain Merker
•
System functions (*)
Only
analog variables ar
e admitted on input
B such as: •
Analog inputs/outputs
•
Register
•
Retain Register
•
Real
•
Retain Real
1
Only
analog variables ar
e admitted such as:
•
Analog outputs
•
Register
•
Retain Register
•
Real
•
Retain Real
Np
OUT = S&H(B)EN:(A)
Out = B if A = ON Out = constant if A = OFF
2
Only
digital variables ar
e admitted on input
A such as: •
Digital inputs/outputs
•
Merker
•
Retain Merker
•
System functions (*)
Only
analog variables ar
e admitted on input
B such as: •
Analog inputs/outputs
•
Register
•
Retain Register
•
Real
•
Retain Real
1
Only
analog variables ar
e admitted such as:
•
Analog outputs
•
Register
•
Retain Register
•
Real
•
Retain Real
No
OUT = select[(sel(A),f:(B),t:(C)]
Out = C if A = ON Out = B if A = OFF
3
Only
digital variables ar
e admitted on input
A such as: •
Digital inputs/outputs
•
Merker
•
Retain Merker
•
System functions (*)
Input B and C ar
e admitted:
•
analog variables such as:
–
Analog inputs/outputs
–
Register
–
Retain Register
–
Real
–
Retain Real
–
String
•
constant values
1
The following types of variable ar
e admit
-
ted, which must be the same in input and output: •
Analog outputs
•
Register
•
Retain Register
•
Real
•
Retain Real
•
String
No
(*)
For the list of functions, see paragraph “13.1. System variables” on page 161.
(**) input B also works by function Enable:
•
FALSE and trailing edge: the output is NOT cooled and maintains the last input sampling
value (DISABLE)
•
Rising edge: output is set to input value (RESET)
•
TRUE: The function is on (ENABLE)