Features:
- One nine-pin RS232 port connects a serial device to the S7-1500 controller.
- Freeport and 3964(R) telegram processing uses configurable framing and buffered reception.
- RUN, ERROR, RxD, and TxD indicators distinguish module, receive, and transmit states.
Siemens 6ES7540-1AD00-0AA0 exchanges serial telegrams through the controller backplane.
Framing, cable length, and auxiliary-signal use define the 6ES7540-1AD00-0AA0 RS232 connection.
Buffer and diagnostic states let the CPU supervise 6ES7540-1AD00-0AA0 communication.
The Siemens 6ES7540-1AD00-0AA0 CM PtP RS232 BA Communication Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6ES7540-1AD00-0AA0 CM PtP RS232 BA Communication Module 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.
Serial Electrical Connection
- Connector: A nine-pin Sub-D carries data and auxiliary signals.
- Signals: RTS, CTS, DTR, DSR, RI, and DCD support the configured handshake.
- Distance: The serial cable remains within the documented 15 m limit.
- Isolation: The RS232 circuit is electrically separated from the backplane bus.
Frame and Buffer Handling
- Freeport: The user-defined frame can use the selected character length, parity, and stop bits.
- 3964(R): The integrated protocol provides framed serial telegram transfer.
- Length: A single received or transmitted telegram can contain up to 1 kbyte.
- Buffer: The 2 kbyte memory can queue as many as 255 telegrams for program access.
Communication State Indication
- RUN: The green indicator reports the module operating state.
- ERROR: The red indicator reports a module or configuration fault.
- RxD and TxD: Yellow indicators separate receive traffic from transmit traffic.
- Alarm: The CPU can receive a diagnostic alarm and wire-break information.
S7-1500 System Connection
- Rail: The module mounts on the S7-1500 mounting rail.
- Backplane: System power and the process image pass through the backplane bus.
- Address area: Eight input bytes are reserved for the module interface.
- Orientation: Vertical installation uses a lower 40 °C maximum than horizontal installation.