Allen-Bradley MicroLogix 1000

Preface
MicroLogix 1000 Programmable Controllers User Manual
I–12
overview, 6-15
addressing structure, 6-16
entering parameters, 6-16
how counters work, 6-17
R eset (RES), 6-20
CTD, Count Down, 6-19
CTU, Count Up, 6-18
D
data files, 4-5
addressing, 4-10
organization, 4-5
types, 4-10
file indicator (#), 4-13
data handling instructions, 9-2
about, 9-2
Convert from BCD (FRD), 9-5
Convert to BCD (TOD), 9-3
Copy File (COP), 9-10
Decode 4 to 1 of 16 (DCD), 9-8
Encode 1 of 16 to 4 (ENC), 9-9
FIFO and LIFO instructions, overview,
9-23
Fill File (FLL), 9-10
in the paper drilling machine application
example, 9-28
move and logical instructions, overview,
9-13
DCD, Decode 4 to 1 of 16, 9-8
DDV, Double Divide, 8-10
Decode 4 to 1 of 16 (DCD), 9-8
entering parameters, 9-8
execution times, 9-8
instruction parameters, C-5
updates to arithmetic status bits, 9-8
valid addressing modes, C-5
valid file types, C-5
developing your logic program-a model,
4-15
DeviceNet Communications, 3-18
DF1 fullduplex protocol
configuration parameters, D-3
connecting, 3-2
description, D-3
example system configuration, D-4
using a modem, 3-3, D-9
DF1 halfduplex protocol
configuration parameters, D-6
description, D-5
DH-485 communication protocol,
configuration parameters, D-12
DH485 network
configuration parameters, D-18
connecting, 3-5
description, D-11
devices that use the network, D-13
example system configuration, D-19
initialization, D-13
installation, 3-5
planning considerations, D-16
protocol, D-11
token rotation, D-12
dimensions, controller, A-9
DIN rail, 1-15
mounting dimensions, 1-15
diode, 1N4004, 1-9
direct addressing, C-3
displaying values, 4-13
DIV, Divide, 8-9
Divide (DIV), 8-9
changes to the math register, 8-9
execution times, 8-9
instruction parameters, C-5
updates to arithmetic status bits, 8-9
valid addressing modes, C-5
valid file types, C-5
Double Divide (DD V), 8-10
changes to the math register, 8-10
execution times, 8-10
instruction parameters, C-5
updates to arithmetic status bits, 8-10
valid addressing modes, C-5
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