7SR210 & 7SR220 Description of Operation
Unrestricted ©2018 Siemens Protection Devices Limited
Page 75 of 94
4.12 Quick Logic
The ‘Quick Logic’ feature allows the user to input up to 16 logic equations (E1 to E16) in text format. Equations
can be entered using Reydisp or at the relay fascia.
Each logic equation is built up from text representing control characters. Each can be up to 20 characters long.
Allowable characters are: -
0, 1, 2, 3, 4, 5, 6, 7, 8, 9
Digit
( )
Parenthesis
!
‘NOT’ Function
.
‘AND’ Function
^
‘EXCLUSIVE OR’ Function
+
‘OR’ Function
E
n
Equation (number)
F
n
Function Key (number)
‘1’ = Key pressed, ‘0’ = Key not pressed
I
n
Binary Input (number)
‘1’ = Input energised, ‘0’ = Input de-energised
L
n
LED (number)
‘1’ = LED energised, ‘0’ = LED de-energised
O
n
Binary output (number)
‘1’ = Output energised, ‘0’ = Output de-energised
V
n
Virtual Input/Output (number)
‘1’ = Virtual I/O energised, ‘0’ = Virtual I/O de-energised
Example Showing Use of Nomenclature
E1=
((I1^F1).!O2)+L1
Equation 1 = ((Binary Input 1 XOR Function Key 1) AND NOT Binary Output 2) OR
LED 1
When the equation is satisfied (=1) it is routed through a pick-up timer (
En Pickup Delay
), a drop-off timer (
En
Dropoff Delay
), and a counter which instantaneously picks up and increments towards its target (
En Counter
Target
).
The counter will either maintain its count value
En Counter Reset Mode
=
OFF
, or reset after a time delay: -
En Counter Reset Mode
=
Single Shot
: The
En Counter Reset Time
is started only when the counter
is first incremented (i.e. counter value = 1) and not for subsequent counter operations. Where
En
Counter Reset Time
elapses and the count value has not reached its target the count value is reset to
zero.
En Counter Reset Mode
=
Multi Shot
: The
En Counter Reset Time
is started each time the counter is
incremented. Where
En Counter Reset Time
elapses without further count increments the count value
is reset to zero.
Summary of Contents for Argus 7SR21
Page 1: ...Energy Management 7SR21 7SR22 Argus Overcurrent Relay Reyrolle Protection Devices ...
Page 2: ......
Page 4: ...Contents 7SR11 and 7SR12 Page 2 of 2 2018 Siemens Protection Devices Limited ...
Page 185: ...7SR210 Settings Guide Unrestricted 2018 Siemens Protection Devices Limited Page 61 of 61 ...
Page 277: ...7SR220 Settings Guide Unrestricted Page 72 of 107 2013 Siemens Protection Devices Limited ...
Page 382: ...7SR220 Technical Manual Chapter 4 Page 2 of 96 2017 Siemens Protection Devices Limited ...
Page 386: ...7SR220 Technical Manual Chapter 4 Page 6 of 96 2017 Siemens Protection Devices Limited ...
Page 398: ...7SR220 Technical Manual Chapter 4 Page 18 of 96 2017 Siemens Protection Devices Limited ...
Page 414: ...7SR220 Technical Manual Chapter 4 Page 34 of 96 2017 Siemens Protection Devices Limited ...
Page 466: ...7SR220 Technical Manual Chapter 4 Page 86 of 96 2017 Siemens Protection Devices Limited ...
Page 468: ...7SR220 Technical Manual Chapter 4 Page 88 of 96 2017 Siemens Protection Devices Limited ...
Page 470: ...7SR220 Technical Manual Chapter 4 Page 90 of 96 2017 Siemens Protection Devices Limited ...
Page 472: ...7SR220 Technical Manual Chapter 4 Page 92 of 96 2017 Siemens Protection Devices Limited ...
Page 643: ...Unrestricted ...