Atob (Ascii To Bcd) - IDEC MICROSmart FC6A Series Ladder Programming Manual

10: D C
ATA ONVERSION

ATOB (ASCII to BCD)

ATOB(*)
*****
Valid Devices
Device
S1 (Source 1)
S2 (Source 2)
D1 (Destination 1)
For valid device address ranges, see "Device Addresses" on page 2-1.
Special internal relays cannot be designated as D1.
When T (timer) or C (counter) is used as S2, the timer/counter current value (TC or CC) is displayed. When T (timer) or C (counter) is used as D1,
the data is written in as a preset value (TP or CP).
Valid values for source S1 data to convert are 30h through 39h. When the data type is W (word), the valid range of S2 (quantity of digits to convert)
is 1 to 5.
When the data type is D (double word), the valid range of S2 (quantity of digits to convert) is 1 to 10.
Make sure that the values for each source designated by S1 and the quantity of digits designated by S2 are within the valid range. If the S1 or S2
data exceeds the valid range, a user program execution error will result, turning on special internal relay M8004 and the ERR LED on the FC6A Series
MICROSmart.
Make sure that the last source data determined by S1+S2-1 is within the valid device range. If the derived source device exceeds the valid device
range, a user program execution error will result, turning on special internal relay M8004 and ERROR LED on the FC6A Series MICROSmart.
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 "User Program Execution Errors" on page 3-10.
Since the ATOB instruction is executed in each scan while input is on, a pulse input from a SOTU or SOTD instruction should be used.
Valid Data Types
W (word) X
I (integer) —
D (double word) X
L (long) —
F (float) —
10-12
I
NSTRUCTIONS
S1 S2 D1
***** *****
Function
ASCII data to convert
Quantity of digits to convert
Destination to store conversion results
When a bit device such as I (input), Q (output), M (internal relay), or R (shift register) is assigned as the source
or destination, 16 points (word data) or 32 points (double-word data) are used.
When a word device such as T (timer), C (counter), or D (data register) is assigned as the source or destination,
1 point (word data) or 2 points (double-word data) are used.
FC6A S MICROS
ERIES MART
Word data:
Double-word data:
When input is on, the ASCII data assigned by S1 as many times as the quantity of
digits assigned by S2 is converted into BCD, and converted into 16- or 32-bit binary
data. The result is stored to the destination assigned by device D1.
Valid values for source data to convert are 30h through 39h.
The number of digits that can be converted is through 5 for word data, and 1 through
10 for double-word data.
I Q M
— — —
X X X
— X
L P M
ADDER ROGRAMMING ANUAL
S1, S1+1, S1+2, S1+3, S1+4 → D1
S1, S1+1, S1+2, ... , S1+9 → D1·D1+1
R T C D P Constant
— — — X —
X X X X — 1-5, 1-10
X X X X —
FC9Y-B1726
Repeat
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—
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