Siemens Simatic S7-300 Specifications Page 65

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S7-300 Automation System CPU Specifications: CPU 31xC and CPU 31x
A5E00105475-03
5-5
Table 5-3 CPU 31xC: Data for calculating the process image transfer time
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K Base load 150 µs 100 µs 100 µs 100 µs
A per byte in module
rack 0
37 µs 35 µs 37 µs 37 µs
B per byte in racks 1 to 3
*
- 43 µs 47 µs 47 µs
D
(DP only)
per WORD in the DP
area for the integrated
DP interface
- - 1 µs - 1 µs -
+ 60 µs per rack
Table 5-4 CPU 31x: Data for calculating the process image transfer time
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K Base load 150 µs 100 µs 100 µs 50 µs
A per byte in module
rack 0
37 µs 35 µs 37 µs 15 µs
B per byte in racks 1 to 3
*
- 43 µs 47 µs 25 µs
D
(DP only)
per WORD in the DP
area for the integrated
DP interface
- - 1 µs 1 µs
* + 60 µs per rack
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