Specifications

Integrating FB20 in the PLC program

48 01.00|FB20|en

Integrating FB20 in the PLC program

This chapter describes how the FB20 can be used in the PLC pro-

gram.

FB20 and the data modules

The FB20 requires a data instance module.

Here, a single DB can be assigned per FB20 call-up, as can be seen

in the example project.

Because of the FB20’s multi-instance capability, data can also be

created in the static area.

Adjusting the interface/communication

The communication between the PLC and the drive takes place via

the I/O data. Since with the FB20, the addresses of the data from

the communications are specified by pointer, the data can be in

the I/O area, the peripheral area, the flag area or in the data mod-

ule.

Fig. 65

4.1

4.2