V
alid
Addressing Modes and File
T
ypes for Instruction Parameters
C–9
Instruction Description Instruction
Parameter
Valid Addressing
Mode(s)
Valid File Types Valid Value
Ranges
LIM Limit Test low limit immediate, direct,
indexed direct
O, I, S, B, T, C, R, N –32,768–32,767
f-min–f-max
test immediate, direct,
indexed direct
O, I, S, B, T, C, R, N –32,768–32,767
f-min–f-max
high limit immediate, direct,
indexed direct
O, I, S, B, T, C, R, N –32,768–32,767
f-min–f-max
MCR Master Control Reset Not Applicable
MEQ
Mask Comparison for
source direct, indexed direct O, I, S, B, T, C, R, N Not Applicable
Equal
source mask immediate, direct,
indexed direct
O, I, S, B, T, C, R, N –32,768–32,767
compare immediate, direct,
indexed direct
O, I, S, B, T, C, R, N –32,768–32,767
MOV Move source immediate, direct,
indexed direct
O, I, S, B, T, C, R, N –32,768–32,767
f-min–f-max
destination direct, indexed direct O, I, S, B, T, C, R, N Not Applicable
MSG
Message read/write immediate 0=read,1=write
target device immediate 2=500CPU,
4=485CIF
control block direct N Not Applicable
control block
length
immediate 7
local address direct O, I, S, B, T, C, R, N Not Applicable
target node (contained in the
control register)
0–254 for DF1;
0–31 for DH-485
target address direct O, I, S, B, T, C, R, N 0–255
message length
T, C, R 1–13
I, O, S, B, N 1–41
Reference
efesotomasyon.com - Allen Bradley,Rockwell,plc,servo,drive
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