Preface – Rockwell Automation 1761 MicroLogix 1000 Programmable Controllers User Manual
Page 320
Preface
MicroLogix 1000 Programmable Controllers User Manual
C–6
Instruction
Valid Value
Ranges
Valid File Types
Valid Addressing
Mode(s)
Instruction
Parameters
Description
FFL
FIFO Load
source
direct, indexed direct➀
O, I, S, B, T, C, R, N
–32,768–32,767
FIFO array
indexed direct
O, I, S, B, N
Not Applicable
FIFO control
direct
R (element level)
Not Applicable
length
(contained in the
control register)
1–128
position
(contained in the
control register)
0–127
FFU
FIFO Unload
FIFO array
indexed direct
O, I, S, B, N
Not Applicable
destination
direct, indexed direct➀
O, I, S, B, T, C, R, N
Not Applicable
FIFO control
direct
R (element level)
Not Applicable
length
(contained in the
control register)
1–128
position
(contained in the
control register)
0–127
FLL
Fill File
source
direct
O, I, S, B, T, C, R, N
–32,768–32,767
f-min–f-max
destination
indexed direct
O, I, S, B, T, C, R, N
(element level)
Not Applicable
length
immediate
1–128; 1–42
when destination
is T,C,R
FRD
Convert from BCD
source
direct, indexed direct
O, I, S, B, T, C, R, N
Not Applicable
destination
direct, indexed direct
O, I, S, B, T, C, R, N
Not Applicable
GEQ
Greater Than or Equal
source A
direct, indexed direct
O, I, S, B, T, C, R, N
Not Applicable
source B
immediate, direct,
indexed direct
O, I, S, B, T, C, R, N
–32,768–32,767
f-min–f-max
GRT
Greater Than
source A
direct, indexed direct
O, I, S, B, T, C, R, N
Not Applicable
source B
immediate, direct,
indexed direct
O, I, S, B, T, C, R, N
–32,768–32,767
f-min–f-max
➀
Indexed addressing is not allowed when using T, C, or R addresses.