IDEC microsmart pentra, Руководство по программированию

Страница: 124 / 344

9: B
OOLEAN
C
OMPUTATION
I
NSTRUCTIONS
9-2 FT1A S
MART
A
XIS
U
SER
’
S
M
ANUAL
FT9Y-B1382
Valid Devices
For the valid device address range, see pages 6-1 and 6-2 (Basic Vol.).
Internal relays M0 through M1277 can be designated as D1. Special internal relays cannot be designated as D1.
When T (timer) or C (counter) is used as S1 or S2, the timer/counter current value (TC or CC) is read out. When T (timer) or C (counter) is used as
D1, the data is written in as a preset value (TP or CP) which can be 0 through 65535.
Since the Boolean computation instructions are executed in each scan while input is on, a pulse input from a SOTU or SOTD instruction should be
used as required.
Valid Data Types
Example: XORW
To convert optional output status among a series of 10 output points, use the XORW instruction in combination with 10 internal
relay points.
Device Function I Q M R T C D Constant Repeat
S1 (Source 1) Data for computation X X X X X X X X 1-99
S2 (Source 2) Data for computation X X X X X X X X 1-99
D1 (Destination 1) Destination to store results — X X X X X — 1-99
W (word) X When a bit device such as I (input), Q (output), M (internal relay), or R (shift register) is designated as the source
or destination, 16 points (word data type) or 32 points (double-word data type) are used. When repeat is
designated for a bit device, the quantity of device bits increases in 16- or 32-point increments.
When a word device such as T (timer), C (counter), or D (data register) is designated as the source or
destination, 1 point (word data type) or 2 points (double-word data type) are used. When repeat is designated for
a word device, the quantity of device words increases in 1- or 2-point increments.
I (integer) —
D (double word) X
L (long) —
F (float) —
This program will invert the status of the shaded outputs at the left from on to
off, and those not shaded from off to on.
Ten outputs Q0 through Q11 are assigned to 10 internal relays M0
through M11.
Five internal relays M0, M2, M4, M6, and M10 are set by initialize
pulse special internal relay M8120.
When input I1 is turned on, the XORW instruction is executed to
invert the status of outputs Q0, Q2, Q4, Q6, and Q10.
0 0 0 0 0 0 1 1 0 0 1 0 1 0 1 0
Q0 Q7 Q10 Q11
10 points
M0 M7 M10 M17
M8120
REP S1 –
M0
S2 –
Q0
D1 –
Q0
SOTU
I1
XORW(W)
M0
S
M2
S
M4
S
M6
S
M10
S