Point-to-point connection

Point-to-point link via communications processors (CPs) is an extremely powerful and low-cost alternative to bus systems. The advantage of point-to-point links over bus systems is es- pecially pronounced when only a few (RS 485) devices are to be connected to the SIMATIC S7.

The CPs can also easily link third-party systems to the SIMATIC S7. Thanks to the great flexibility of the CPs, different physical transmission media, transmission rates or even cus- tomized transmission protocols can be implemented.

The CPs have a rugged plastic housing with LEDs for displaying operating states and faults.

For each CP there is a configuring package on CD with elec- tronic manual, parameterization screen forms and standard function blocks for communication between the CPU and the CP.

The configuration data are stored in a system block and backed up in the CPU. When modules are replaced, the new module is therefore immediately ready for use.

With the S7-400 point-to-point link modules, adaptation to the physical transmission media is achieved by plugging in the relevant interface submodules, without the need for external converters.

SIMATIC S7

Point-to-point links for SIMATIC S7-400

Scanner Barcode reader

Process controller

SIMOVERT

SIMOREG

Modem