SST-PFB-SLC User’s Guide
36
Addresses Q0 to Q255 map to M1:0-127 for inputs and M0:0-127 for outputs.
For analog or word modules, assign addresses on even boundaries.
For 8-bit modules, if the address is even, the module occupies the low byte of
the register. If the address is odd, it occupies the high byte.
Whenever possible, assign addresses so that everything maps into the I and O
areas of memory. Accessing data in the M0 and M1 area slows the overall
SLC scan.
Note
Q addresses in the configuration tool are byte addresses
while the M0 and M1 addresses in the SLC are word
addresses.
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