Mitsubishi Electronics garageportåbner FX3UC Håndbog

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Mitsubishi Electronics garageportåbner FX3UC
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FX3S/FX3G/FX3GC/FX3U/FX3UC Series
Programming Manual - Basic & Applied Instruction Edition
16 External FX Device – FNC 80 to FNC 89
16.5 FNC 84 – CCD / Check Code
3. 8-bit conversion mode (while M8161 is ON)
(M8161 is used also for the RS, ASCI, HEX and CRC instructions.)
With regard to "n" data starting from , the addition data and horizontal parity data of only low-order 8 bits are
stored to and +1 respectively.
M8161 is also used for the RS, ASCI, HEX and CRC instructions. When using the 8-bit mode, set M8161 to normally
ON. M8161 is cleared when the PLC mode is changed from RUN to STOP.
Example of 8-bit conversion
In the following program, conversion is executed as follows:
Example of data contents
D 100 K100 = 01100100
D 101 K111 = 0110111 (1) ←
D 102 K100 = 01100100
D 103 K 98 = 01100010
D 104 K123 = 0111101 (1) ←
D 105 K 66 = 01000010
D 106 K100 = 01100100
D 107 K 95 = 0101111 (1) ←
D 108 K210 = 11010010
D 109 K 88 = 01011000
Total K1091
Horizontal parity 1000010 (1)
← When the number of "1" is odd, the horizontal parity is "1".
When the number of "1" is even, the horizontal parity is "0".
S
D
D
M8161
M8000
FNC 84
CCD
nS
Command
input
D
8-bit mode
Ignored
Low-order 8 bits
16 bits
Source data
M8161
M8000
FNC 84
CCD
D100 D0 K10
X010
8-bit mode
S
1100001000100000
D 0
"1091" in BCD
1010000100000000
D 1
Horizontal parity
Indholdsfortegnelse
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