Mitsubishi Electric MELSEC iQ-R Series - Page 654

652
7 APPLICATION INSTRUCTIONS
7.8 String Processing Instructions
Processing details
• These instructions convert the digit in hexadecimal 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 hexadecimal ASCII data to be stored in (d) depends on the status of SM705 (Number of conversion digits
selection).
*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 BINHA(P) instruction is executed with the 16-bit binary data "0ABCH" stored in (s)
• When SM705 is off, the number of digits is fixed. Four digits of "0ABC" are converted into ASCII data and stored.
• When SM705 is on, data is left-justified. "0ABC" with the leading "0" omitted ("ABC") are converted into ASCII data and
stored, and 00H is stored in the end.
Status of SM705
*1
Storage format of (d) Reference
OFF Data is stored in a fixed number of digits (4 digits) Page 653 Operation of when SM705 (Number of
conversion digits selection) is off
ON Each digit is stored left-justified depending on the value of (s). Page 653 Operation of when SM705 (Number of
conversion digits selection) is on
b15 b0
0ABC(s) BINHA(P)
SM705: OFF
b15 b0
41H 30H(d)+0
0CBA
43H 42H(d)+1
b15 b0
42H 41H(d)+0
A NULL CB
00H 43H(d)+1
SM705: ON