Owner manual

ControlLogix-XT Data Highway Plus-Remote I/O Interface Module 19
Publication
1756-IN638A-EN-P - March 2009
Alphanumeric Display Startup Sequence
At powerup, the module’s alphanumeric display cycles through this
sequence.
• Channel A and the network used for channel A - DH+ or RIO
• Channel A node address, if used for DH+
• Channel A status
• Channel B and the network used for channel B - DH+ or RIO
• Channel B node address, if used for DH+
• Channel B status
That sequence runs continuously during normal module operation.
For
example, if your module uses the following:
• Channel A for DH+ with node address 14
• Channel B for RIO
and the channels are operating properly, you see the following
seq
uence:
• A DH, A#14, A OK, B IO, SCAN, B OK
For more information about the codes displayed on the alphanumeric
disp
lay, see the Alphanumeric Display Codes (page
21) and the
Status Indicators (page 24) sections for more information