Appendix D Use of Application Instructions|DOP-EXIO Series
D-66
Revision March, 2008, Doc. Name: 2007PDD23000014
Mnemonic Operands Function
HEX
S
D
n
Convert ASCII to Hex
Bit Devices Word Devices
X Y M S K H KnX KnY KnM KnS T C D E F
S
D
n
y Note:
1. Range of n: 1 ~ 256
16-bit instruction (7 Steps)
HEX
Continuous
execution
32-bit instruction
- - - -
y Flags: M1161 (8/16 bit mode switch)
Operands:
S
: Start device for source data
D
: Start device for storing the converted result
n
: Number of bits to be converted
Explanations:
1. 16-bit conversion mode: When M1161 = Off, the instruction is in 16-bit conversion mode. ASCII
codes of the 8 high bits and 8 low bits of the hex data in
S are converted into hex value and sent to
D (every 4 bits as a group). n = the number of bits converted into ASCII codes.
2. 8-bit conversion mode: When M1161 = On, the instruction is in 8-bit conversion mode. Every bit of
the hex data in
S are converted into ASCII codes and sent to the 8 low bits of D. n = the number of
converted bits. (All 8 high bits of
D = 0)
Program Example 1:
1. M1161 = Off: The 16-bit conversion mode
2. When X0 = On, convert the ASCII codes stored in the registers starting from D20 into hex value
and send the result (every 4 bits as a group) to registers starting from D10.
n = 4.
X0
HEX D20 D10 K4
M1001
M1161
3. Assume
S
ASCII code
Converted to
hex
S
ASCII code
Converted to
hex
D20 low byte H 43 “C” D24 low byte H 34 “4”
D20 high byte H 44 “D” D24 high byte H 35 “5”
D21 low byte H 45 “E” D25 low byte H 36 “6”
D21 high byte H 46 “F” D25 high byte H 37 “7”
D22 low byte H 38 “8” D26 low byte H 30 “0”
D22 high byte H 39 “9” D26 high byte H 31 “1”
D23 low byte H 41 “A” D27 low byte H 32 “2”
D23 high byte H 42 “B” D27 high byte H 33 “3”
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