Features:
- Two serial channels accept plug-in interface modules for different electrical standards.
- ASCII, 3964(R), RK512 and printer drivers are supplied in the communication processor.
- Traffic and fault LEDs separate channel activity from internal and external alarms.
The two channels on 6ES7441-2AA04-0AE0 can be equipped independently with the documented RS232, 20mA TTY or X27 interface module required by each partner.
Protocol processing occurs in 6ES7441-2AA04-0AE0, while STEP 7 assigns the rack slot and address used by the S7-400 CPU to reach the communication processor.
The 115.2 kbit/s limit for 6ES7441-2AA04-0AE0 applies to the summed transmission rate of its two interfaces, so channel settings must be considered together.
The Siemens 6ES7441-2AA04-0AE0 SIMATIC S7-400 CP 441-2 Communication Processor may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6ES7441-2AA04-0AE0 SIMATIC S7-400 CP 441-2 Communication Processor Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Choosing the physical layer for each serial channel
- RS232 option: An RS232 plug-in module gives one channel of 6ES7441-2AA04-0AE0 the corresponding point-to-point electrical interface.
- Current-loop option: The 20mA TTY module adapts a channel to a current-loop communication partner.
- Differential option: The X27 module supplies RS422/485 electrical behavior.
- Channel independence: The two positions can be populated according to the two connected partners rather than requiring identical interface modules.
How frames move between the serial partner and S7-400
- Character traffic: The ASCII driver on 6ES7441-2AA04-0AE0 transfers serial character streams with configured framing.
- Handshake procedure: 3964(R) adds a defined control-character exchange around transmitted blocks.
- Computer link: RK512 organizes addressed data exchange with the communication partner.
- Printer output: The printer driver formats controller data for a connected serial printer.
Connecting the rack entry to protocol parameters
- Rack entry: 6ES7441-2AA04-0AE0 is placed in the STEP 7 hardware table with its rack, slot and order number.
- Address assignment: STEP 7 assigns the address through which the S7-400 CPU reaches the processor.
- Protocol setup: The CP 441 configuration package supplies the parameter interface for the selected serial protocol.
- Driver loading: This AA04 version permits customer-specific transmission drivers to be loaded with the configuration package.
Separating traffic indications from fault sources
- Transmit state: TXD indicators on 6ES7441-2AA04-0AE0 show data leaving the corresponding serial channel.
- Receive state: RXD indicators show data arriving from the connected partner.
- Interface fault: FAULT indication identifies a problem associated with the serial interface.
- Group alarms: INTF and EXTF LEDs distinguish internal processor faults from external conditions.