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12 Appendix
12.3 Technical data
12.3.4 Central processing unit, real-time clock/timing relay/memory
348
Control Relay easy800 11/11 MN04902001Z-EN www.eaton.com
A double-layer capacitor (super capacitor) is used to back up the supply
voltage for the real-time clock.
The full charge of the double layer capacitor is reached if the easy800 device
is connected to the power supply for 24 hours.
Backup/accuracy of the real-time clock (see figure) only EASY8..-..-.C."(Clock) and easy800-SWD
Back-up time
Accuracy of the real-time clock
Repetition accuracy of timing relays
Accuracy of timing relay (from value) %
Resolution
Range "S"
Range "M:S"
Range "H:M"
Memory
Possible Current paths
Possible contacts in series
Coil per circuit connection
Program memory
1)
Storage of programs
(Zero-voltage safe,
i.e. retentive)
Write/read cycles memory
(minimum)
Retentive memory
Size
Hours-run counter
1) for circuit diagram, function blocks and system parameters
200
25°C
180
160
55°C
140
120
a
100
80
60
40
20
0
0
1
2
3
4
5
6
Backup time (hours) with fully charged double layer capacitor
Service life (years)
s/day
Normally ± 2 (± 0.2 h ⁄ Year)
The accuracy of the real-time clock can vary, depending on the
average ambient air temperature, up to ± 5 s ⁄ Day (± 0.5 h ⁄ Year).
± 0.02
ms
5
s
1
min
1
256
4
1
KByte
easy800 standard: 8
easy800-SWD: 16
FRAM
easy800 standard: 10
14
easy800-SWD: 10
Byte:
easy800 standard: 200
easy800-SWD: 400
Byte:
16
7
8
9
10
11
12
13
14
15
16
17
18
b
12
19
20
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