Siemens CP-8000

System Components and Technical Data
SICAM A8000 / CP-8000 • CP-8021 • CP-8022 Manual Unrestricted 95
DC8-037-2.02, Edition 10.2017
5.4.2 CP-8021 and CP-8022
5.4.2.1 Technical Data
Processor and memory
Processor Blackfin BF536
Clock pulse frequency Core clock approx. 400 MHz
System clock approx. 133 MHz
Accuracy clock pulse ± 3.5 ppm (-40°C to +80°C), ± 2 ppm (0°C to 40°C)
Internal real time clock and exter-
nal synchronization
• Buffered maintenance-free (72 h)
• Automatical daylight-saving time/normal time change
• (S)NTP time server
Free run accuracy 12.6 ms/h
Program memory Flash-PROM 16 MB
Main memory SDRAM 32 MB
Local non-volatile memory FRAM 8 KB
Changeable non-volatile memory
• SD card up to 2 GB
• SIM card standard (mini SIM) for GPRS communication
1)
Max. number of data points 20000 (sum of process images over all 4 interfaces)
Memory for application program 128 KB, thereof 4 KB temporary memory for variables
Number of variables for applica-
tion program
512 variables possible, thereof 256 bytes non-volatile
(variables: BOOL = 1 bit, DINT = 4 bytes, REAL = 4 bytes)
Program sampling
• Cyclical 10…2000 ms (settable raster 1 ms)
• Spontaneous (settable; run not based on interrupt)
Acquisition grid digital I/O 10 ms
Decentralized archive Recording raster for measured values 1, 2, 3, 5, 10, 15, 30,
60 min, settable
Max. message length of a segment 1…200 bytes, settable
Memory configuration, settable
10 files of 1000 records each (= 10000 records)
20 files of 500 records each (= 10000 records)
50 files of 400 records each (= 20000 records)
80 files of 450 records each (= 36000 records)
100 files of 100 records each (= 10000 records)
100 files of 25 records each (= 2500 records)
200 files of 50 records each (= 10000 records)
200 files of 25 records each (= 5000 records)