Communication Modules

SAS 340, communication module

The SAS 340 is a serial communication module for use in S7-300* systems. It allows the connection to the PLC of serial devices such as barcode scanners, operator terminals, serial printers, PCs, PLCs of other manufacturers and supports the protocols ASCII and 3964R.

Serial devices can be connected with RS232 or RS422/RS485. The 9-pin Sub-D socket (15-pin with RS422/485) with standard pin assignment is provided for connecting the partner devices.

The additional USB device interface enables the connection of the PLC to PC systems, many of which have no conventional physical port. A virtual COM port driver enables the use of software that expects a COM interface.

The SAS 340 features advanced functions such as support for higher baud rates up to 115 kBaud, making it flexible without any loss of compatibility.

The handling blocks supplied enable simple and flexible integration into the PLC. The module is parameterized in the hardware configurator of the PLC. Advanced functionalities (such as higher baud rates) can be activated easily with the handling blocks.

SAS 341, Communication Module

The SAS 341 is a serial communication module for use in S7-300* systems. It allows the connection to the PLC of serial devices such as barcode scanners, operator terminals, serial printers, PCs, PLCs of other manufacturers and supports the protocols ASCII, 3964R, and RK512.

Serial devices can be connected with RS232 or RS422/RS485. The 9-pin Sub-D socket (15-pin with RS422/485) with standard pin assignment is provided for connecting the partner devices.

The additional USB device interface enables the connection of the PLC to PC systems, many of which have no conventional physical port. A virtual COM port driver enables the use of software that expects a COM interface.

The SAS 341 features advanced functions such as support for higher baud rates up to 115 kBaud, making it flexible without any loss of compatibility.

The linking of different PLC types of the S7-300* is flexibly implemented using the standardized RK512 computer link protocol.

The handling blocks supplied enable simple and flexible integration into the PLC. The module is parameterized in the hardware configurator of the PLC.

EIB 300, communication module for twisted-pair EIB/KNX

The EIB 300 is a serial communication module for use in S7-300* systems. It enables the connection of an EIB/KNX bus to the PLC, with the bus being placed directly on the module.

Through the possibilities of PLC programming, complex control and monitoring functions can be easily implemented on the EIB/KNX bus.

In “object mode,” the EIB 300 is an active participant on the EIB/KNX bus with up to 240 objects, with all object types from 1 bit to 4-byte data size being supported.

The current object values in the PLC are mapped in a data block and exchanged with each PLC cycle. In this way the changes on the EIB side are transferred to the PLC, and values changed in the PLC are transferred to the EIB/KNX bus. In addition, “event” and “control flags” allow influence to be taken on the communication behavior in a targeted manner.

The configuration of the EIB 300 is in the PLC as a CP module.

The handling blocks included in the scope of delivery enable easy integration of the EIB 300 into the PLC program. The EIB 300 is integrated as a new device in the ETS software with a supplied sample project. In object mode, objects organized in various profiles can be configured and adapted to the respective application.

Six colored LEDs indicate the current operating status of the EIB 300 and the EIB/KNX bus. The built-in USB interface is provided for firmware updates and more in-depth diagnosis.