Specifications

General Information Section 6-1

6.1 General Information

The operating terminals allow for a simple connection to the Klöckner Moeller PLCs

PS 306 and PS 316.

The operating terminal is connected to the PU interface of the PLC. The data com-

munication on the interface is handled by the SUCOM1 protocol.

The software components of the system are fully adapted to the parameters and

marginal conditions of the SUCOM1 protocol.

This offers the user the following advantages:

- Random write and read access to any data within the PLC. Data of existing PLC

programs can be displayed and modiﬁed directly in the operating terminal. It is

not necessary to adapt the PLC program to the operating terminal in any re-

spect. It is not required that communications data be stored in a speciﬁed ad-

dress area or data type area.

- The operating terminal automatically polls the freely deﬁnable data areas for

cyclic data.

- No additional conﬁguration required within the PLC.

- Minimal increase of the cycle time of the PLC.

- The protocol provides error control. Transmission errors are detected and, if

possible, eliminated by repeating the transmission.

- A noise-immune interface hardware in accordance with the RS485 interface

standard permits the application even in a harsh industrial environment.

- The parameters of the interface SER1 are assigned in the programming soft-

ware in a protocol-speciﬁc manner and are stored in the application description.

Modifying of the parameters is also possible in the setup mask or each other I/O

mask of the terminal at any time.

- The programming system provides a maximum of support to the operator in

programming the operating terminal. The deﬁnitions (abbreviations) used here

are identical with the deﬁnitions used within the PLC program.