Functions and requirements
1.5 Performance data and configuration limits
Configuration - DNP3
20 Configuration Manual, 11/2018, C79000-G8976-C508-01
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The CP can establish connections to up to 4 communications partners.
The partners can be linked redundantly.
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The CP can establish connections to up to 4 communications partners (S7 stations).
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1 connection resource is reserved for online functions.
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8 connection resources for S7 connections (BSEND/BRCV)
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Max. 4 connections at the same time
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– 2 connection resources for PG connections
– 1 connection resource for OP connections
Number of data points for the data point configuration
The maximum number of configurable data points is 200.
Frame memory (send buffer)
The CP has a frame memory (send buffer) for the values of data points configured as an
event.
The send buffer has a maximum size of 64000 events. The size of the frame memory is
divided equally among all configured communications partners. It can be set in STEP 7, refer
to the section Communication with the CPU (Page 62).
You will find details of how the send buffer works (storing and sending events) as well as the
options for transferring data in the section Process image, type of transmission, event
classes (Page 113).
Up to 10 messages to be sent as e-mails can be configured in STEP 7.
● Maximum number of characters that can be transferred per e-mail: 256 ASCII characters
including any value sent at the same time
Up to 8 IPsec terminals can be established for secure communication with other security
modules.
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