IM 151?3 PN High Speed Interface Module: Ideal for fast I/O processing with SIMATIC ET 200S and PROFINET

The IM 151?3 PN High Speed Interface Module supports the following on a PROFINET IO basis with Isochronous Real-Time (IRT):

• Isochronous acquisition/output of signal states, synchronized with the user program
• Implementation of fast cycle times of 250 µs.

In comparison to PROFIBUS applications, much shorter terminal-to-terminal times can be implemented on the basis of PROFINET.

• The high data transmission rate of 100 Mbit/s and full-duplex mode (simultaneous transmitting and receiving) enable larger I/O volumes to be transmitted with the same bus cycle time as compared to PROFIBUS (125 bytes are transferred in approximately 10 µs).
• This communication performance is available on every PROFINET port of the controller – i.e. 3 ports on the SIMOTION D4x5?2 DP/PN, C240 PN and P320?4 or 2 ports on the SIMOTION D410-2 DP/PN.
• The IM 151?3 PN High Speed Interface Module as well as the associated I/O modules have extremely short signal processing times (e.g. conversion time of ? 20 µs per channel for Analog Modules) so that even during the same bus cycle significantly shorter terminal-to-terminal times can be achieved with PROFINET than with a comparable PROFIBUS cycle. The big advantage: the terminal-to-terminal times are reduced without reducing the computing time available to the application.
• Apart from Isochronous Real-Time (IRT) communication, Real-Time (RT) communication and standard TCP/IP communication can also be executed without losing the deterministic response of the IRT message frames due to the bandwidth reserved for IRT.

The minimum cycle times are usually dependent on the application to be implemented (computing load) and the performance capability of the controller used, for example:

• SIMOTION P320?4: Minimum 250 µs.
• SIMOTION D435?2/SIMOTION D445?2/SIMOTION D455?2: Minimum 250 µs.

SIMATIC ET 200S is the optimum I/O system for closed-loop control and motion control applications in which short cycle times, isochronous/equidistant signal acquisition and signal output are required.

SIMATIC ET 200S also supports the accurate and high-speed acquisition of digital inputs as well as time or position-based switching of digital outputs. For position-based switching of digital outputs, the SIMATIC ET 200S output is assigned to the SIMOTION technology object "TO Output Cam" or "TO Cam Track".

The modules listed below support isochronous operation with bus cycle times of 250 µs minimum: