Publication PSS-UM001A-EN-P – December 2016
What is the H Series Fieldbus DeviceNet Adapter? 2-11
Use Diagnostic Tables
The adapter maintains three diagnostic tables to manage the fl ow of
data between a processor and a network’s devices. You can access
the table over DeviceNet through the Scan Confi g Object (Class
Code 0x90), Instance 1, via the following read-only attributes:
• Faulted Node Table (Attribute 0xA) - In this 8-byte table, each
bit represents a node on the backplane. For example, bit 0 in
byte 0 represents MACID 0 (the adapter), while bit 0 in byte 1
represents MACID 8 and so on. If a bit is set, a corresponding
non-zero status value can be read from the Node State Table
described below.
Node Status Table Numeric Code Defi nitions
Numeric Code: Text Message: Defi nition: Take this action:
70 DupMAC Failure Adapter failed Duplicate Node An I/O module has a MACID of zero.
Address check. Change the module’s address.
71 Scanner Cfg Error Illegal data in the scan list table. Reconfi gure the scan list table and
remove any illegal data.
72 Comm Failure Slave device stopped communicating. Inspect the I/O modules and
verify connections.
73 Wrong Device Type Device’s identity information does not Verify that the correct device is at
match electronic key in scan list this node number.
table entry.
Make sure that the device matches the
desired electronic key (vendor, product
code, product type).
74 Port Overrun Error Data overrun on port detected. Modify your confi guration and check for
invalid data.
Check network communication traffi c.
75 Network Failure Communication has ceased on Inspect the I/O modules and
the backplane. verify connections.
76 No Msg for Scanner No direct network traffi c for No action. The scanner hears other
scanner detected. network communication.
77 Wrong Data Size Data size expected by the device does Reconfi gure your module for correct
not match scan list entry. transmit and receive data sizes.
78 No Such Device Slave device in scan list table does Add the device to the network, or
not exist. delete scan list entry for that device.
79 Transmit Failure Adapter has failed to transmit Make sure that other modules exist on
a message. the backplane.
80 In Idle Mode Adapter is in IDLE mode. No action necessary.
If you want the adapter to run, put it in
RUN mode.
•
Idle Node Table (Attribute 0xB) - In this 8-byte table, each bit also
represents a node on the backplane, as with the Faulted Node
Table. If a bit is set in the Idle Node Table, the corresponding
node is in the scanlist and currently in idle mode.
• Node Status Table (Attribute 0xC) - This 64 byte table contains
a status code for each possible MACID on the backplane.
Non-zero values are accompanied with the respective bit in
the Faulted Node Table being set.
See the table Node Status Table Numeric Code Defi nitions for an
explanation of the text messages associated with the Node Status
Ta bl e .
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