Lenze E94AYCPM Manual do Utilizador descarregar pdf (Página 55)

Lenze · E94AYCPM communication module (PROFIBUS®) · Communication Manual · DMS 12.0 EN · 11/2012 · TD17 55

9 Parameter data transfer

9.2 DRIVECOM parameter data channel (DP-V0)

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

9.2.7 Telegram examples

9.2.7.1 Read request: Querying the heatsink temperature

The heatsink temperature of the controller is to be read.

• Code to be read: C00061

• Heatsink temperature: 43 °C

Byte 1: Service (request)

Request = 0t110001

bin

• Bit 0 ... 2 = 001

bin

for read request

• Bit 3 = 0 (reserved)

• Bit 4/5 = 01

bin

for 2-byte data length (only relevant for the response telegram)

• Bit 6 = handshake bit (t ≡ status is changed in the response telegram)

• Bit 7 = status bit (only relevant for the response telegram)

Byte 2: Subindex

Subindex = 0 because code C00061 does not contain any subindices.

Bytes 3+4: Index

Index = 24575 - code number = 24575 - 61 = 24514 = 0x5FC2

• Byte 3 (high byte) = 0x5F

• Byte 4 (low byte) = 0xC2

Bytes 5 ... 8: Data

The response telegram contains the value of code C00061:

Data 3 + 4 = 43 [°C] x 1 (internal factor) = 43 = 0x002B

Result

Request telegram from master to drive:

Response telegram from drive to master (for correct execution):

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

0x01 0x00 0x5F 0xC2 0x00 0x00 0x00 0x00

0t000001

bin

00000000

bin

01011111

bin

11000010

bin

00000000

bin

00000000

bin

00000000

bin

00000000

bin

Waiting for change of handshake bit 6 in service byte 1 of the response.

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 0x00 0x5F 0xC2 0x00 0x2B 0x00 0x00

0t010001

bin

00000000

bin

01011111

bin

11000010

bin

00000000

bin

00101011

bin

00000000

bin

00000000

bin

1 2 ... 50 51 52 53 54 55 56 57 58 59 60 ... 124 125

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