Eaton E5-648-C446 Series, Instruction Leaflet, Page: 18 / 24

18
Instruction leaflet IL05407001E
Effective October 2010
E5-648-C446x electronic preset
counter with four presets (relays)
LCD negative, red-green backlighting
eaton corporation
www.eaton.com
14. input modes: pulse counting, continued
Function
Diagram 
p = preset
pnp: count on rising edge
npn: count on falling edge
Quad 4
INP A
INP B
ADD
SUB
0
P
1
P+1 P+2 P+3 P+3 P+4 P+4 P+5 P+5 P+6 P+6 P+7
2 3 3 4 4 5 5 6 6 7
A 90° B
Inp A: Count input
Count on rising and on falling edges
Inp B: Count input
Count on rising and on falling edges,
Reverse direction
Add: Display 0 --> Preset
Sub: Display Preset -> 0
A/B
0 1 1 1 2 3 4
0 1 2 3 3 4 4
0 1 0.5 0.33 0.66 0.75 1
INP A
Counts A
INP B
Counts B
Display
Inp A: Count input 1
Inp B: Count input 2
Formula:
A/B
(A-B)/A
0 1 1 1 2 3 4
0 1 2 3 3 4 4
0% 1% –100% –200% –50% –33% 0%
INP A
Counts A
INP B
Counts B
Display
Inp A: Count input 1
Inp B: Count input 2
Formula:
(A – B)/A x100

Note: No counting when GATE input is active