Mitsubishi Electric FX3G SERIES Programming Manual page 635

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
Explanation of function and operation
1. 16-bit operation (MIDR and MIDRP)
" +1" characters are extracted leftward from the position specified by
S
2
in S and later, and stored to
1
When characters are extracted from a character string, "00H" is automatically added at the end of the extracted
characters.
- When the number of extracted characters specified by
a device storing the last character.
- When the number of extracted characters specified by
last character.
Command
input
Target character string (extraction source)
b15-----------------b8b7-------------------b0
S
1
S +1
1
S +2
1
S +3
1
S +4
1
S +5
1
5
S
2
S +1 5
2
• A character string stored in
first detected in units of byte.
• When the number of characters to be extracted specified by
executed.
• When the number of characters to be extracted specified by
S and later is stored to
1
b15-----------------b8
S
1
S +1
1
S +2
1
S +3
1
S +4
1
S +5
1
S 5
2
S +1 -1
2
Cautions
When handling character codes other than ASCII codes, note the following contents:
• The number of characters is handled in byte units (8 bits). Accordingly, in the case of character codes in which 2
bytes express 1 character such as shift JIS code, the length of 1 character is regarded as 2 characters.
• When extracting characters from a character string including character codes in which 2 bytes express 1 character
such as shift JIS codes, consider the number of characters to be extracted in units of character codes for 1
character.
Note that the expected character code is not given if only 1 byte is executed out of a 2-byte character code.
D and later.
FNC206
D
S
1
MIDR
42H(B) 41H(A)
44H(D) 43H(C)
46H(F) 45H(E)
48H(H) 47H(G)
4AH(J) 49H(I)
00H 4BH(K)
"ABCDEFGHIJK"
S and later indicates data stored in devices from the specified device until "00H" is
1
D and later.
b7-------------------b0
42H(B) 41H(A)
44H(D) 43H(C)
46H(F) 45H(E)
48H(H) 47H(G)
4AH(J) 49H(I)
00H 4BH(K)
"ABCDEFGHIJK"
26 Character String Control – FNC200 to FNC209
26.7 FNC206 – MIDR / Random Selection of Character Strings
S
S +1 is odd, "00H" is stored in the high-order byte of
2
S +1 is even, "0000H" is stored in the device after the
2
S
2
1st character
b15------------------b8b7-------------------b0
D
D +1
D +2
5th character
S
2
5 characters starting from 5th character
S
2 +1
S +1 is "0", the extraction processing is not
2
S +1 is "-1", the entire character string stored in
2
b15-----------------b8b7-------------------b0
D 46H(F)
D +1 48H(H)
4AH(J)
D +2
D +3
S
5th character
2
of the character string data stored
2
Extracted character string
46H(F) 45H(E)
48H(H) 47H(G)
00H 49H(I)
"EFGHI"
45H(E)
47H(G)
49H(I)
00H 4BH(K)
"FEGHIJK"
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