Rockwell-automation 1760-DNET Pico DeviceNet Communications Module Use Manual de usuario descargar pdf (Pagina 40)

Publication 1760-UM003A-EN-P - September 2005

5-4 Direct Data Exchange with Pico/GFX (Polled I/O Connection)

Byte 2: not used

Output Data:

Mode, R1 – R16

Attribute ID: 4

The cyclic data transfer between DeviceNet master and the Pico

DeviceNet Interface slave is provided by the output data byte 0, 1 and

The master writes the following data to the bytes 0, 1 and 2:

EXAMPLE

Value 19hex = 0001 1001bin:

S5, S4 and S1 are active

TIP

If control commands and I/O data are used at the

same time:

• The inputs will retain their previous state until

this control command has been executed.

• The input bytes will be updated again after the

data exchange control command has been

terminated.

If the status value of the coupling module is invalid

(= 04hex), then byte 1 (data byte) is transferred with

the value 00hex to the communication bus.

Table 5.13 Byte 0 to 2: Output Data, Mode

Byte Meaning Value

0 Determine mode

1 Setting/resetting of the

Pico/GFX inputs R9 to R16

2 Setting/resetting of the

Pico/GFX inputs R1 to R8

1 2 ... 35 36 37 38 39 40 41 42 43 44 45 ... 167 168

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Rockwell-automation 1760-DNET Pico DeviceNet Communications Module Use Manual de usuario Pagina 40