Addressing M0-M1 Files; Restrictions On Using M0 M1 Data File Addresses - Allen-Bradley 1747-SN User Manual

B–2 M0–M1 Files and G Files
Publication 1747 6.6 - July 1996
Complete the following steps to configure the M0 and M1 files:
1. Press , Specialty I/O Configuration. The following functions
[F9]
appear:
ISR
NUMBER
F1
2. Press , Advanced Setup. The following functions appear:
[F5]
INPUT OUTPUT
SIZE SIZE
F1 F2
3. Press , then enter the number of M0 file words required (the
[F5]
required number is listed in the user manual for the specific
specialty I/O module).
4. Press , then enter the number of M1 file words required (the
[F6]
required number is listed in the user manual for the specific
specialty I/O module).
The specialty I/O module may require that you also configure the G
file and specify an ISR (interrupt subroutine) number. These tasks
are accomplished with function keys F1, F3, and F7 shown in step 1
above. G files are discussed later in this appendix.

Addressing M0-M1 Files

The addressing format for M0 and M1 files is below:
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)

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:
Instruction
BSL, BSR
SQO, SQC, SQL
LFL, LFU
FFL, FFU
MODIFY ADVNCD
G FILE SETUP
F3 F5
SCANNED SCANNED M0 FILE
INPUT OUTPUT SIZE
F3 F4
Parameter (uses file indicator #)
File (bit array)
File (sequencer file)
LIFO (stack)
FIFO (stack)
G FILE
SIZE
F7
M1 FILE
SIZE
F5 F6