Chapter 2. CPU Features & Specifications
GFK-2222AD
April 2018
87
CPE010
CPE020
CPE030
CPE040
Time-of-Day Clock
Time-of-Day Clock Accuracy (@60°C)
±9 secs/day
±9 secs/day
±2 secs/day
±2 secs/day
Elapsed Time Clock (internal timing) accuracy
±0.01% max
±0.01% max
±0.01% max
±0.01% max
Simple Network Time Protocol (SNTP) accuracy to timestamp
±2 ms
±2 ms
±2 ms
±2 ms
RTC Battery Backup
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Y
Y
Y
Y
RTC Battery Life expectancy
See GFK-2741
See GFK-2741
See GFK-2741
See GFK-2741
Redundancy Features
Model CRE020 Only
Model CRE030 Only
Model CRE040 Only
Memory Error Checking and Correction (ECC)
Single bit correcting &
Multiple bit checking
Single bit correcting &
Multiple bit checking
Single bit correcting &
Multiple bit checking
Switchover Time (max)
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1 logic scan
1 logic scan
1 logic scan
Switchover Time (min)
3.133 ms
3.133 ms
3.133 ms
Max data in redundancy transfer list
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2 Mbytes
2 Mbytes
2 Mbytes
Redundant Synchronized Links Supported
RMX128 x2 max
RMX128 x2 max
RMX128 x2 max
Environmental
See GFK-2223 App A
See GFK-2223 App A
See GFK-2223 App A
See GFK-2223 App A
52
Same battery as for memory backup
53
Switchover time is defined as the time from failure detection until backup CPU is active in a redundancy system.
54
Symbolic variable and Reference data can be exchanged between redundancy controllers, up to the stipulated limit.