Rockwell-automation 1738-ADNX ArmorPoint I/O DeviceNet Adapters Manual de usuario descargar pdf (Pagina 38)

Publication 1738-UM001A-EN-P - February 2005

2-22 What Is the ArmorPoint DeviceNet Adapter?

See the I/O Status Word Bit Definitions table for definitions of the first

2 bytes of each I/O message produced by the adapter on DeviceNet.

The first 2 bytes of output data on the DeviceNet network that are sent

to the adapter are reserved as a command word. No bits have

been defined.

I/O Status Word Bit Definitions

Bit Operating Mode Operating Mode Description

0 0 = Run mode

1 = Idle mode

Run - The adapter maps output data to

each module on PointBus.

Idle - Output data with zero length is

sent to I/O modules.

Device Failure - One or more of the

devices in the scanlist has failed to

communicate with the adapter.

Communications Failure - The

adapter has entered the BUSOFF state

on the Subnet. Another Subnet device

is configured with the wrong baud rate.

Duplicate Node Address Failure -

There is another node with the same

address (0) as the scanner on the

Subnet and the adapter has failed its

Dup_MAC_ID test.

1 1 = Device failure (at least one

device failed)

2 1 = Communication failure

3 1 = Duplicate node

address failure

4 Reserved

5 Reserved

6 Reserved

7 Reserved

0 Reserved

1 Reserved

2 Reserved

3 Reserved

4 Reserved

5 Reserved

6 Reserved

7 Reserved

Byte 0

Byte 1

1 2 ... 33 34 35 36 37 38 39 40 41 42 43 ... 133 134

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