Wika D-21-9 Manual do Utilizador descarregar pdf (Página 36)

D-20-9 / D-21-9 GB

WIKA Additional Instructions Pressure Transmitter with CANopen Interface D-20-9 / D-21-9 36

Example 1:

Pressure Range: -1 … 2.5 bar (=> -100,000 … 250,000 Pa output value)

Calibration Point 1:

Pressure applied (reference value): -0.9 bar

The user writes the value that the device is supposed to indicate under the pressure currently applied to object

6121h subindex 1 (AI_Input_Scaling_1_PV), i.e. in this example -90,000 Pa (=> FF FE A0 70 h)

ID DLC Byte0 Byte1 Byte2 Byte3 Byte4 Byte5 Byte6 Byte7

21h 61h 70h A0h FEh FFh

600h

Node-ID

CS =

22h

Index 6121h

01h

Subindex

desired value (as integer32)

The pressure transmitter confirms the successful service by:

ID DLC Byte0 Byte1 Byte2 Byte3 Byte4 Byte5 Byte6 Byte7

21h 61h

580h

Node-ID

CS =

60h

Index 6121h

01h

Subindex

00h 00h 00h 00h

Calibration Point 2:

Pressure applied (reference value): 2.5 bar

The user writes the value that the device is supposed to indicate under the pressure currently applied to object

6123h subindex 1 (AI_Input_Scaling_2_PV), i.e. in this example 250,000 Pa (=> 00 03 D0 90 h)

ID DLC Byte0 Byte1 Byte2 Byte3 Byte4 Byte5 Byte6 Byte7

23h 61h 90h D0h 03h 00h

600h

Node-ID

CS =

22h

Index 6121h

01h

Subindex

desired value (as integer32)

The pressure transmitter confirms the successful service by:

ID DLC Byte0 Byte1 Byte2 Byte3 Byte4 Byte5 Byte6 Byte7

23h 61h

580h

Node-ID

CS =

60h

Index 6121h

01h

Subindex

00h 00h 00h 00h

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 ... 50 51

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Wika D-21-9 Manual do Utilizador Página 36

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