IDEC MICROSmart FC5A Series, Руководство пользователя

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5: Binary Arithmetic Instructions
5 ‐ 2 FC5A MicroSmart User’s Manual FC9Y ‐ B1273
Applicable CPU Modules
Valid Devices
For the valid device address range, see pages 6 ‐ 1 and 6 ‐ 2
(
Basic Vol.).
Internal relays M0 through M2557 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.
When F (float) data type is selected, only data register and constant can be designated as S1 and S2.
When F (float) data type is selected and S1 or S2 does not comply with the normal floating ‐ point format, a user program execution
error will result, turning on special internal relay M8004 and ERR LED on the CPU module.
Since the binary arithmetic 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
Using Carry or Borrow Signals
When the D1 (destination) data is out of the valid data range as a result of any binary arithmetic operation, a carry or bor ‐
row occurs, and special internal relay M8003 is turned on.
FC5A ‐ C10R2/C/D FC5A ‐ C16R2/C/D FC5A ‐ C24R2/C/D FC5A ‐ D16RK1/RS1 FC5A ‐ D32K3/S3 FC5A ‐ D12K1E/S1E
X X X X X X
Device Function I Q M R T C D Constant Repeat
S1 (Source 1) Data for calculation X X X X X X X X 1 ‐ 99
S2 (Source 2) Data for calculation 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
I (integer) X
D (double word) X
L (long) X
F (float) X
Data Type Carry/borrow occurs when D1 is out of the range between
W (word) 0 and 65,535
I (integer) –32,768 and 32,767
D (double word) 0 and 4,294,967,295
L (long) –2,147,483,648 and 2,147,483,647
F (float)
–3.402823

10
38
and –1.175495

10
–38
1.175495

10
–38
and 3.402823

10
38
When a bit device such as I (input), Q (output), M (internal relay), or R (shift register) is designated as
the source, 16 points (word or integer data type) or 32 points (double ‐ word, long, or float 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, 1
point (word or integer data type) or 2 points (double ‐ word, long, or float data type) are used. When
repeat is designated for a word device, the quantity of device words increases in 1 ‐ or 2 ‐ point incre ‐
ments.