Behavior Of The Sender Line Drivers Of The Serial Interface During Particular Operating Modes Of The Cp; Table 7-1 Behavior Of The Sender Line Drivers - Siemens SIMATIC S7-400 CP 440 Installation And Parameter Assignment

Startup Characteristics and Operating Mode Transitions of the CP 440

7.4 Behavior of the Sender Line Drivers of the Serial Interface During Particular Operating Modes of the CP

7.4 Behavior of the Sender Line Drivers of the Serial Interface During
Particular Operating Modes of the CP
Behavior of the Sender Line Drivers
Table 7-1
Status
The CP 440 is deenergized
The CP 440 is in the expansion rack with its own power supply, but the
central controller is switched off.
No parameters are assigned to the CP 440.
No parameters are assignmed to the CP 440; the sender is in an idle
state
3964
•
ASCII, operating mode RS422, multipoint, master
•
ASCII, operating mode RS422, multipoint, slave
•
ASCII, RS485
•
114
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Behavior of the Sender Line Drivers
Point-to-point connection CP 440 Installation and Parameter Assignment
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Line Drivers
High resistance
High resistance
High resistance
High level
•
High level
•
High level
•
High resistance
•
Manual, 09/2007, A5E00057742-03