Eaton ELC-PB, Programming Manual

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Decimal value in ELC operation is attached with a “K”, e.g. K100 indicates the value 100 in
Decimal format.
Exception:
When a constant K is used with bit devices X, Y, M, S, the value specified after K
indicates the groups of 4-bit units, which forms a digit(4-bit), byte(8 bit), word(16bit), or
double word(32-bit) data, e.g. K2Y10, K4M100, representing Y10 ~ Y17 and
M100~M115.
4. BCD (Binary Coded Decimal)
BCD format uses 1 Decimal digit to represent a 4 bit value, so that 16 consecutive data bits
can be represented by a 4-digit decimal value. Used mainly for reading values from DIP
switches or sending data to 7-segement displays
5. Hexadecimal Number, HEX
ELC applies Hexadecimal operation in situations below:
z For use of operand in API instructions, e.g. MOV H1A2B D0
。
(H value)
z Constant H:
Hexadecimal value in ELC operation is attached with an “H”, e.g. H100 indicates the value
100 in Hex format.
Reference Table:
Binary
(BIN)
Octal
(OCT)
Decimal (K)
(DEC)
BCD
(Binary Code Decimal)
Hexadecimal (H)
(HEX)
For ELC
internal
operation
No. of X, Y
relay
Constant K, No. of
registers M, S, T, C,
D, E, F, P, I
For DIP Switch and
7-segment display
Constant H
0000 0 0 0000 0
0001 1 1 0001 1
0010 2 2 0010 2
0011 3 3 0011 3
0100 4 4 0100 4
0101 5 5 0101 5
0110 6 6 0110 6
0111 7 7 0111 7
1000 10 8 1000 8
1001 11 9 1001 9
1010 12 10 0000 A
1011 13 11 0001 B