Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 645

Processing details
• These instructions convert the digit in decimal notation of the 16-bit binary data in the device specified by (s) to the ASCII
code, and store the converted data in the device number specified by (d) and later.
• The format of the decimal ASCII data to be stored in (d) depends on the status of SM705 (Number of conversion digits
selection).
*1
Status of SM705 Storage format of (d)
OFF Data is stored in a fixed number of digits (a sign + 5 digits)
ON Each digit is stored left-justified depending on the value of (s).
*1 For the firmware version of the CPU module supporting SM705, refer to the following.
 MELSEC iQ-R CPU Module User's Manual (Application)
A CPU module which does not support SM705 operates in the same way as SM705 is off even if it is turned on.
■Operation overview
The following figure shows the operation when SM705 (Number of conversion digits selection) is off and on.
Ex.
When the BINDA(P) instruction is executed with the numeric value "-12" stored in (s)
b15 ∙∙∙ b0
(s) -12 BINDA(P)
• When SM705 is off, the number of digits is fixed. The first character is a sign and it is 2DH(-) in the above example. (If (s) is
0 or positive, the first character is 20H (space).) The numeric part is right-justified. When the length of the numeric part is
less than 5 digits, the ASCII code 20H (space) is stored for the ASCII code of the upper digit(s).
• When SM705 is on, data is left-justified. When the length of the numeric part is less than 5 digits, 00H is stored in the end.
SM705: OFF
b15
(d)+0
(d)+1
(d)+2
SM705: ON
b15
(d)+0
(d)+1
(d)+2
Reference
Page 644 Operation of when SM705 (Number of
conversion digits selection) is off
Page 644 Operation of when SM705 (Number of
conversion digits selection) is on
∙∙∙ b0
20H 2DH - SP SP SP
20H 20H
32H 31H
∙∙∙ b0
31H 2DH - 1 2
NULL
00H 32H
7 APPLICATION INSTRUCTIONS
7.8 String Processing Instructions
1 2
7
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