Product overview
2.3 Functions
CM PtP RS232 HF (6ES7541‑1AD00‑0AB0) communication module
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Manual, 01/2013, A5E03790665-01
2.3
Functions
Introduction
The communication module allows you to exchange data between your own and other
programmable controllers or computers by means of a point-to-point connection, and to
connect various devices from a variety of manufacturers.
Functionality of the CM PtP RS232 HF
The CM PtP RS232 HF communication module offers the following functionality:
●
RS232 interface
●
Data transmission rate: 300 to 115200 bps
●
Maximum frame length: 4 kbyte
●
Transmission protocols: Freeport, 3964(R) and Modbus
Note
The USS protocol can be implemented with instructions included in STEP 7 (TIA Portal).
Hardware components of a point-to-point connection
You require certain hardware components for a point-to-point connection with the
CM PtP RS232 HF.
Components
Function
CPU module
Accessories: Memory card
... executes the user program.
CM PtP RS232 HF communication module
... communicates with a communication partner (point-to-point) by
means of the interface.
Connecting cable
... connects the CM PtP RS232 HF communication module with the
communication partner.
U connector
... provides the mechanical and electrical connection between the
modules.
Optional: Power supply module (PS)
... converts the line voltage (120/230V AC or 24V DC) into the
operating voltage required to supply the S7-1500.
