Rockwell-automation 1760-DNET Pico DeviceNet Communications Module Use Manual de usuario descargar pdf (Pagina 93)

Publication 1760-UM003A-EN-P - September 2005

Pico GFX Control Commands 7-13

If required, refer to the more detailed description of the marker

allocation in the Pico GFX manual. Only a small extract of this manual

is shown at this point in order to illustrate the allocation principle.

Table 6.85 Byte 0 to 2 (master) or: Byte 1 to 3 slave: Len, Type, Index

Operand Len Type Index

Marker bit M1…M96 01

hex

01 to 60

hex

Marker byte MB1…MB96 01

hex

01 to 60

hex

Marker word MW1…MW96 02

hex

01 to 60

hex

Marker double word MD1…MD96 04

hex

01 to 60

hex

ATTENTION

The function blocks and DW markers (32-bit values)

of Pico GFX operate with signed values.

Table 6.86

Applies

to MD,

MW,

MB, M

Left = Most

significant bit,

byte, word

Right = Least

significant bit,

byte, word

32 bit MD1

16 bit MW2 MW1

8 bit MB4 MB3 MB2 MB1

1 bit M32 to M25 M24 to M17 M16 to M9 M8 to M1

32 bit MD2

16 bit MW4 MW3

8 bit MB8 MB7 MB6 MB5

1 bit M64 to M57 M56 to M49 M48 to M41 M40 to M33

TIP

The relevant marker values are transferred in Intel

format. In other words, the first byte is the low byte

(Byte 4) and the last byte the high byte.

1 2 ... 88 89 90 91 92 93 94 95 96 97 98 ... 167 168

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Rockwell-automation 1760-DNET Pico DeviceNet Communications Module Use Manual de usuario Pagina 93

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