FT1A S
MART
A
XIS
U
SER
’
S
M
ANUAL
FT9Y-B1382
11-19
11: D
ATA
C
ONVERSION
I
NSTRUCTIONS
CVDT (Convert Data Type)
Applicable CPU Modules
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, 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 only data register can be designated as D1.
When F (float) data type is selected and S1 or D1 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.
When a user program execution error occurs, the execution of the instruction is canceled. The value of D1 is left unchanged and the next instruction
is executed. For user program execution errors, see Chapter 4 “User Program Execution Errors” on page 4-21.
Valid Data Types
S1
D1
When input is on, the data type of the 16- or 32-bit data designated by S1 is converted
and stored to the destination designated by device D1.
Data types can be designated for the source and destination, separately
Data Type
W, I
D, L, F
Source
S1
S1·S1+1
Destination
D1
D1·D1+1
When the same data type is designated for both source and destination, the CVDT
instruction has the same function as the MOV instruction.
Unless F (float) data type is selected for both source and destination, only the integral
number is moved, omitting the fraction.
When the source data exceeds the range of destination data type, the destination stores
a value closest to the source data within the destination data type.
S1(R)
*****
REP
**
D1(R)
*****
CVDT
*TO*
FT1A-12
FT1A-24
FT1A-40
FT1A-48
FT1A-Touch
X
X
X
X
X
Device
Function
I
Q
M
R
T
C
D
Constant
Repeat
S1 (Source 1)
First device address to convert data type
X
X
X
X
X
X
X
X
1-99
D1 (Destination 1)
First device address to store converted data
—
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 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 or
destination, 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 increments.
I (integer)
X
D (double word)
X
L (long)
X
F (float)
X
Содержание microsmart pentra
Страница 1: ...FT1A SERIES FC9Y B1382 Ladder Programming Manual ...
Страница 6: ...Preface 5 FT1A SMARTAXIS USER S MANUAL FT9Y B1382 ...
Страница 104: ...7 DATA COMPARISON INSTRUCTIONS 7 10 FT1A SMARTAXIS USER S MANUAL FT9Y B1382 ...
Страница 122: ...8 BINARY ARITHMETIC INSTRUCTIONS 8 18 FT1A SMARTAXIS USER S MANUAL FT9Y B1382 ...
Страница 138: ...10 SHIFT ROTATE INSTRUCTIONS 10 12 FT1A SMARTAXIS USER S MANUAL FT9Y B1382 ...
Страница 162: ...11 DATA CONVERSION INSTRUCTIONS 11 24 FT1A SMARTAXIS USER S MANUAL FT9Y B1382 ...
Страница 188: ...12 CALENDAR COMPARISON INSTRUCTIONS 12 26 FT1A SMARTAXIS USER S MANUAL FT9Y B1382 ...
Страница 198: ...15 REFRESH INSTRUCTIONS 15 4 FT1A SMARTAXIS USER S MANUAL FT9Y B1382 ...
Страница 202: ...16 INTERRUPT CONTROL INSTRUCTIONS 16 4 FT1A SMARTAXIS USER S MANUAL FT9Y B1382 ...
Страница 266: ...20 DUAL TEACHING TIMER INSTRUCTIONS 20 4 FC5A MICROSMART USER S MANUAL FC9Y B1273 ...
Страница 318: ...25 USER COMMUNICATION INSTRUCTIONS 25 22 FT1A SMARTAXIS USER S MANUAL FT9Y B1382 ...