Rockwell Automation 1761 MicroLogix 1000 Programmable Controllers - Manual (Page 319)

Valid Addressing Modes and File Types for Instruction Parameters
C–5
Instruction Valid Value
Ranges
Valid File Types Valid Addressing
Mode(s)
Instruction
Parameters
Description
CTD Count Down counter direct C (element level) Not Applicable
preset (contained in the
counter register) –32,768–32,767
accum (contained in the
counter register) –32,768–32,767
CTU Count Up counter direct C (element level) Not Applicable
preset (contained in the
counter register) –32,768–32,767
accum (contained in the
counter register) –32,768–32,767
DCD Decode 4 to 1 of 16 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
DDV Double Divide source immediate, direct,
indexed direct O, I, S, B, T, C, R, N –32,768–32,767
destination direct, indexed direct O, I, S, B, T, C, R, N Not Applicable
DIV Divide source A immediate, direct,
indexed direct O, I, S, B, T, C, R, N –32,768–32,767
f-min–f-max
source B 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
ENC Encode 1 of 16 to 4 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
EQU 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
Reference