Rockwell Automation 1747-SDN SLC 500 DeviceNet Scanner Module User Manual User Manual

Page 135

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Publication 1747-UM655B-EN-P - June 2007

Data Organization 135

Bit Table

Status Word I:s.0

Operating Mode Description

Bit

Operating Mode

0

1 = Run mode, 0 = Idle mode
(echoed from the module
command register)

Run
The module maps output data from its scanner output table (M0) and discrete outputs to
each device on the network. Inputs are received and mapped into the scanner input table
(M1) and discrete inputs. Outputs on the network are under SLC program control.

Idle
The scanner does not map output data to the devices, but keeps network connections to
devices open so device failures can be detected. Input data is returned from devices, and
mapped into the scanner input table (M1) and the discrete inputs. Outputs on the network
are not under program control and will be in their configured Idle state. The scanner must
be put into this mode to perform offline configuration of the scanner database tables.

1

1 = fault network (echoed from
the module command register)

Fault Network
The scanner has stopped communicating with devices on the network. No outputs or inputs
are mapped. Outputs on the network are not under program control.
If scanner was in Run mode, devices will go to their fault state.

2

Reserved

3

Reserved

4

1 = disable network (echoed
from the module command
register)

Disable Network
The DeviceNet channel is disabled for communication. No communication may occur over
this channel. Outputs on the network are not under program control.
If scanner was in Run mode, devices will go to their fault state.

5

Reserved

6

1 = device failure (at least one
device failed)

Device Failure
One or more of the devices in the scanner’s scanlist has failed to communicate with the
scanner.

7

Reserved

8

1 = autoverify failure (at least
one device has failed auto verify)

Autoverify Failure
One or more of the devices in the scanner’s scanlist is returning an incorrect number of
bytes of data in response to a connection establishment, according to the information
stored in the scanner’s scanlist.

9

Reserved

10

1 = communication failure

Communication Failure
There is no communication on the port.

11

Reserved

12

1 = duplicate node address
failure

Duplicate Node Address Failure
There is another node with the same address as the scanner on the network.

13

Reserved

14

Reserved

15

1 = Explicit Message Program
Control Response available in
M1 file
0 = Empty

Explicit Message Program Control
A response to a previously sent Explicit Message is now available to be read/interpreted by
the ladder program.

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