Rockwell Automation 1747-SN Remote I/O Scanner - Manual (Page 114)

Publication 1747-UM013B-EN-P - January 2005
B-2 M0 - M1 Files and G Files
Addressing M0-M1 Files
The addressing format for M0 and M1 files is below:
Restrictions on Using M0-M1 Data File Addresses
M0 and M1 data file addresses can be used in all instructions except
the OSR instruction and the instruction parameters noted below:
Monitoring Bit Addresses
For SLC 5/02 processors, the M0/M1 Monitoring option is always
disabled. (This processor does not allow you to monitor the actual
state of each addressed M0/M1 address.)
M0/M1 Monitoring Option Disabled
When you monitor a ladder program in the Run or Test mode with the
M0/M1 Monitoring option disabled, the following bit instructions,
addressed to an M0 or M1 file, are indicated as false regardless of their
actual true/false logical state.
Instruction Parameter (uses file indicator #)
BSL, BSR File (bit array)
SQO, SQC, SQL File (sequencer file)
LFL, LFU LIFO (stack)
FFL, FFU FIFO (stack)
Mf:e.s/b
Where M = module
f = file type (0 or 1)
e = slot (1-30)
s = word (0 to max. supplied by module)
b = bit (0-15)