Rockwell Automation 2755-SNx Adaptascan Bar Code Readers User Manual

Page 196

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10–34

Communicating with an SLC 5/03 Processor on a DeviceNet Network using Explicit Messaging

Publication 2755-6.8

Your module uses numeric displays to indicate diagnostic
information about the status of your module. The display flashes at
1 second intervals. The following table summarizes the meanings of
the numeric codes.

Numeric Code

Indicates

Take this action

Network Address

Displays 0 - 63

normal operation. The numeric display matches
the scanner’s node address on the DeviceNet
network.

None.

70

module failed Duplicate Node Address check.

Change the module channel address to another
available one. The node address you selected
is already in use on that channel.

71

illegal data in scan list table (node number
alternately flashes).

Reconfigure the scan list table and remove any
illegal data.

72

slave device stopped communicating (node
number alternately flashes).

Inspect the field devices and verify connections.

73

device key parameters do not match scan list
table entry (node number alternately flashes).

Enter a matching scan list device ID. Make sure
that the device at the flashing node address
matches the desired key parameters (vendor,
product code, product type).

74

data overrun on port detected.

Modify your configuration and check for invalid
data.

75

no network traffic has been detected.

Verify connections.

76

no direct network traffic for module detected.

None. The module hears other network
communication.

77

data size returned does not match scan lists
entry (node number alternately flashes).

Reconfigure your module and change the
addressing.

78

slave device in scan list table does not exist
(node number alternately flashes).

Add the device to the network, or delete the
scan list entry for that device.

79

module has failed to transmit a message.

Make sure that your module is connected to a
valid network. Check for disconnected cables.
Verify baud rate.

80

module is in IDLE mode.

None.

81

module is in FAULT mode.

None.

82

error detected in sequence of fragmented I/O
messages from device (node number alternately
flashes).

Check scan list table entry for slave device to
make sure that input and output data lengths
are correct. Check slave device configuration.

83

slave device is returning error responses when
module attempts to communicate with it (node
number alternately flashes).

Check accuracy of scan list table entry. Check
slave device configuration.

84

module is initializing the DeviceNet channel.

None. This code clears itself once module
attempts to initialize all slave devices on the
channel.

85

data size returned is bigger than expected.

Check accuracy of scan list table entry. Check
slave device configuration.

86

device is producing idle state data while the
scanner is in Run Mode.

Check device configuration/slave node status.

87

available for allocation. Scanner has not yet
been detected by allocated master, or slave
mode is enabled but scanner is not allocated to
a master.

Monitor scanner to determine if error code
clears when master detects scanner. If error
remains, check scanner slave mode
configuration.

88

this is not an error. At power-up and reset, the
module displays all 14 segments of the node
address and status display LEDs.

None.

Table continued on the next page.

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