gefran 2850T, Инструкция по использованию и установке, Страница: 60 / 166

58
4. CONFIGURATION
80703B_MHW_2850T/3850T_02-2019_ENG
Logic Functions
Diagram
Formal language
Description
Inputs
Outputs
Timer
no.
type
no.
type
Out = A | B | C | D
Out = TRUE if at least one input is TRUE (1)
4
Only
digital variables ar
e admitted such as:
•
Digital inputs/outputs
•
Merker
•
Retain Merker
•
System functions (*)
1
Only
digital variables ar
e admitted such as:
•
Digital outputs
•
Merker
•
Retain Merker
Ye
s
Out = A & B & C & D
Out = TRUE if all inputs ar
e equal
to TRUE (2)
4
Only
digital variables ar
e admitted such as:
•
Digital inputs/outputs
•
Merker
•
Retain Merker
•
System functions (*)
1
Only
digital variables ar
e admitted such as:
•
Digital outputs
•
Merker
•
Retain Merker
Ye
s
Out = SR(S:A,R:B)
Flip Flop SR (3)
2
Only
digital variables ar
e admitted such as:
•
Digital inputs/outputs
•
Merker
•
Retain Merker
•
System functions (*)
1
Only
digital variables ar
e admitted such as:
•
Digital outputs
•
Merker
•
Retain Merker
Ye
s
Out = RS(R:A,S:B)
Flip Flop RS (4)
2
Only
digital variables ar
e admitted such as:
•
Digital inputs/outputs
•
Merker
•
Retain Merker
•
System functions (*)
1
Only
digital variables ar
e admitted such as:
•
Digital outputs
•
Merker
•
Retain Merker
Ye
s
Out = Rtrig one shot cnt out(A) Out = Rtrig full cnt out(A)
Sear
ching for the rising edge (5)
2
Only
digital variables ar
e admitted on input
A
such as:
•
Digital inputs/outputs
•
Merker
•
Retain Merker
•
System functions (*)
Only the operating mode can be set on input
B
, selecting fr
om:
•
full cnt out
•
one shot cnt out
1
Only
digital variables ar
e admitted such as:
•
Digital outputs
•
Merker
•
Retain Merker
Out = Ftrig one shot cnt out(A) Out = Ftrig full cnt out(A)
Sear
ching for the trailing edge (5)
2
Only
digital variables ar
e admitted on input
A
such as:
•
Digital inputs/outputs
•
Merker
•
Retain Merker
•
System functions (*)
Only the operating mode can be set on input
B
, selecting fr
om:
•
full cnt out
•
one shot cnt out
1
Only
digital variables ar
e admitted such as:
•
Digital outputs
•
Merker
•
Retain Merker
& = AND, | = OR
(*)
For the list of functions, see paragraph “13.1. System
variables” on page 161.
OPERA
TING MODE FOR BLOCKS
Rtrig
AND
Ftrig
full cnt out
: inter
ception of the rising/trailing edge (function block output) r
emains equal to TRUE for a single cycle of the PLC (25 msec). After this time the output
retur
ns to F
ALSE to the next rising/trailing edge.
one shot cnt out
: inter
ception of the rising/trailing edge (function block output) r
emains equal to TRUE until the output is for
ced to F
ALSE. All rising/trailing edges occur
while the block output is TRUE ar
e ignor
ed.