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Index-6 Series 90-30/20/Micro Programmable Controllers Reference Manual–September 1998 GFK-0467K
slot, B-3
spare, B-3
task, B-3
PLC sweep, 2-2
application program logic scan, 2-8
configured constant sweep time mode, 2-13
constant sweep time mode, 2-13, 2-35
housekeeping, 2-6
input scan, 2-7
logic program checksum calculation, 2-9
logic solution, 2-8
output scan, 2-9
PCM communications with the PLC, 2-12
programmer communications window, 2-9
scan time contributions for 350 and 360 Series
of, 2-5
standard program sweep mode, 2-2
standard program sweep variations, 2-13
STOP mode, 2-13
sweep time calculation, 2-6
sweep time contribution, 2-4
system communications window, 2-10
PLC system operation, 2-1
Positive transition coil, 4-5
Power flow, 2-29
Power of e function, 4-37
Power of X function, 4-37
Power-down, 2-33
Power-up, 2-30
Power-up and power-down sequences, 2-30
power-down, 2-33
power-up, 2-30
Privilege level change requests, 2-37
Privilege levels, 2-36
change requests, 2-37
Program block
how blocks are called, 2-19
how C blocks are called, 2-19
how subroutines are called, 2-19
subroutine block, 2-16
Program block checksum failure, 3-11
Program organization and user data
floating-point numbers, E-1
Program organization and user references/data,
2-16
data types, 2-23
function block structure, 2-26
retentiveness of data, 2-21
system status, 2-24
transitions and overrides, 2-21
user references, 2-20
Program structure
how blocks are called, 2-19
how C blocks are called, 2-19
how subroutines are called, 2-19
subroutine block, 2-16
Program sweep, standard, 2-2
Programmer communications window, 2-9
Programming instructions, 4-1
bit operation functions, 4-47
control functions, 4-107
conversion functions, 4-94
data move functions, 4-69
instruction mnemonics, C-1
math functions, 4-26
relational functions, 4-41
relay functions, 4-2
table functions, 4-86
timers and counters, 4-9
Proportional Integral Deviation (PID), 4-171
R
RAD, 4-39
Radian conversion function, 4-39
RANGE, 4-44
Range function, 4-44
REAL
convert to REAL, 4-101
Data type structure, 2-23
Using floating-point numbers, E-1
Using Real numbers, E-1
references, 2-20
Register Reference
system registers, 2-20
Register references, 2-20
analog inputs, 2-20
analog outputs, 2-20
Relational functions, 4-41
EQ, 4-41
GE, 4-41
GT, 4-41
LE, 4-41
LT, 4-41
NE, 4-41
RANGE, 4-44
Relay functions, 4-2
coils, 4-3, 4-4
contacts, 4-2
continuation coil, 4-8
continuation contact, 4-8
horizontal and vertical links, 4-7
negated coil, 4-4
negated retentive coil, 4-5
negative transition coil, 4-5
normally closed contact, 4-4
normally open contact, 4-4
positive transition coil, 4-5
RESET coil, 4-6
retentive coil, 4-5
retentive RESET coil, 4-7
retentive SET coil, 4-7