Rockwell Automation 160IB1 InterBus Communication Module - Manual (Page 31)

Using the 160-IB1 on InterBus 6–5
Now save the file with a filename. Choose ”File” and ”Save”
commands.
The network should now be configured with the 160-IB1 BA LED
now steady green. If not, check that the processor is in Run mode.
InterBus assigns a communication reference (CR) dynamically when
the network(frame) is read in. It starts with the first module it sees on
the network, assigns a CR=2 and specifies memory allocation for the
I/O messaging. Then the CR and memory allocation increments for
each module it sees. Therefore any new nodes added to a network
should ALWAYS be added to the end of the network.
In order to view the memory allocation, select ”Monitor” and
”Controller Board” and ”Address Monitor”.
The 160-IB1 with the DRIVECOM 20/21 implementation is mapped
3 words input and 3 words output, mapped to the start of the memory
of the scanner card. In this case as the IBS scanner is in slot 3 of the
SLC rack, then address 0 is the first output address of the card i.e.
O:3.0.
Outputs
Address 0
Command word
Address 1 Speed reference
Address 2 Diagnostics
Address 512 (Inputs) are the first input addresses of the scanner card:
I:3.0
Address 0
Status word
Address 1 Speed feedback
Address 2 Diagnostics.