Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 655

■Operation of when SM705 (Number of conversion digits selection) is off
Hexadecimal ASCII data is stored in a fixed number of digits (4 digits) in (d).
b15 ∙∙∙ b0
(s)
BIN 16bit
ASCII : ASCII code (th digit)
(1): 00H is stored in (d)+2 when SM701 (Number of output characters selection) is off. When it is on, the value in (d)+3 remains unchanged.
• The operation result to be stored in the device specified by (d) is processed as a 4-digit hexadecimal number. Therefore, 0
at the left side of the effective number of digits is processed as "0". (Zero padding)
Ex.
When 02A6H is stored in the device specified by (s)
b15 ∙∙∙ b0
(s)
02A6H
■Operation of when SM705 (Number of conversion digits selection) is on
Hexadecimal ASCII data for the number of digits (up to 4 digits) without the leftmost "0" in the effective digits is stored right-
justified in (d).
The following figures show an example of a value of (s) and a value stored in (d).
Value of (s) Data of (d) to (d)+1
• 0H to FH • The upper byte of (d) is filled with 00H.
• (d)+1 and later remain unchanged.
b15
(d)
(d)+1
• 100H to FFFH • The upper byte of (d)+1 are filled with 00H.
b15
(d)
(d)+1
ASCII : ASCII code (th digit)
• When the number of digits is less than the maximum number of digits (4 digits), 00H is stored in the end of the string
regardless of the status (on/off) of SM701 (Number of output characters selection). If the end of the string is the lower byte,
00H is also stored in the upper byte.
• When the number of digits is equal to the maximum number of digits (4 digits), 00H is stored in (d)+2 when SM701 is off.
(d)+2 remains unchanged if SM701 is on.
Operation error
There is no operation error.
b15 ∙∙∙
(d)
ASCII 3
(d)+1 ASCII 1
(d)+2
(1)
b15 ∙∙∙
(d)
32H (2)
(d)+1 36H (6)
(d)+2
∙∙∙ b8 b7 ∙∙∙ b0
00H ASCII 1
∙∙∙ b8 b7 ∙∙∙ b0
ASCII 2 ASCII 3
00H ASCII 1
b8 b7 ∙∙∙ b0
ASCII 4
ASCII 2
00H
b8 b7 ∙∙∙ b0
30H (0)
41H (A)
00H
Value of (s) Data of (d) to (d)+1
• 10H to FFH • (d)+1 is filled with 00H.
b15
(d)
(d)+1
• 1000H to FFFFH • (1): (d)+2 is filled with 00H when SM701 (Number of
output characters selection) is off. (d)+2 remains
unchanged if SM701 is on.
b15
(d)
(d)+1
(d)+2
7 APPLICATION INSTRUCTIONS
7.8 String Processing Instructions
∙∙∙ b8 b7 ∙∙∙
ASCII 1 ASCII 2
00H
∙∙∙ b8 b7 ∙∙∙
ASCII 3 ASCII 4
ASCII 1 ASCII 2
00H
(1)
7
b0
b0
653