Lenze 2131IB Bedienungsanleitung PDF herunterladen (Seite 32)

Parameter setting

6-9

 BA2131EN

6.3.4 Example 2: Write parameter

Task

The heatsink temperature (value = 43 C) C0061 is to be read by the controller.

Job (byte 1/service)

Bit 0-2 = 2 Writ e j ob (xxxx x001)

Bit 3 = 0 Re se rved (xxxx 0001)

Bit 4-5 = 3 Data length 4 byte (xx11 0001)

Bit 6 = X Handshake changes frequently (xx11 0001)

Bit 7 = 0 Only relevant with response (0x11 0001)

SUBINDEX (byte 2)

Subindex = 0, as there is not subindex under code C0061.

INDEX (byte 3 + 4)

Index calculation:

Index = 24575 - code number

Index = 24575 - 61 = 24514 = 5FC2

hex

Response to drive

Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8

Service Subindex Index

High byte

Index

Low byte

Data 4 Data 3 Data 2 Data 1

0x11 0001 0 5F C2 00 00 00 00

Response of the controller when no fault occurs

Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8

Service Subindex Index

High byte

Index

Low byte

Data 4 Data 3 Data 2 Data 1

0x11 0000 0 5F C2 00 06 8F B0

Index of the read request = 5FC2

hex

Data1todata4=43C x 10000 = 430000 = 00 06 8F B0

6.4 Process data

Process data are data memories in which several parameters for a new parameter - the process

data - are summarized for fast transmission. The host has direct access to the process data. In the

PLC, for instance, the data are directly assigned to the I/O area. These process data are cyclically

exchanged between the controller and the master. They are subdivided into

Process output data (PO data)

Process input data (PI data)

Here the dataflow starts from themaster, i.e.thePOdataof themaster arePIdatafor thecontroller.

The controller gets the control information from the master and returns status information.

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