Siemens Logo! Manual page 194

LOGO! functions
Calculation rule
S
When you set a negative differential value
threshold
Q = 1, if the actual value Ax > On
Q = 0, if the actual value Ax
See the timing diagram A.
S
When you set a positive differential value
threshold < the Off threshold, and Q = 1, if:
On
See the timing diagram B.
Preset of the Par parameter
The gain and offset parameters are used to adapt the sen-
sors to the relevant application.
View in programming mode (example):
B3
On =+04000
n
Press
B3
A
B
p
View in parameter assignment mode (example):
B3
On =+04000
n
Ax =+05000
186
Off threshold, and:

actual value Ax < Off.

1+
=–02000
2
=01.00
=+00000
=2
=–02000
Off.

n
Parameter protection mode
On/off threshold
Differential value for the on/off
threshold
Gain
Offset
Decimals in the message text
On threshold
Differential value for the
off threshold
Q = 1 (Ax > On)
A5E00380835-01
n
, the On
, the On
LOGO! Manual