1245
Text String Processing Instructions
Section 3-33
Description
XCHG$(665) exchanges the text string designated by Ex1 with the text string
designated by Ex2. If either Ex1 or Ex2 is NUL, then two NUL characters
(0000 hex) will be output to the other one of them.
Note
XCHG$(665) can be processed in the background. Refer to the
SYSMAC CS/
CJ/NSJ Series PLC Programming Manual
(W394) for details.
Flags
Precautions
The maximum number of characters that can be designated by Ex1 or Ex2 is
4,095 (0FFF hex). If more than that are designated, an error will be generated
and the Error Flag will turn ON.
If the text string data designated by Ex1 and Ex2 overlaps, an error will be
generated and the Error Flag will turn ON.
Example
In this example, XCHG$(665) is used to exchange two text strings.
Indirect DM/EM
addresses in binary
@ D00000 to @ D32767
@ E00000 to @ E32767
@ En_00000 to @ En_32767
(n = 0 to C)
Indirect DM/EM
addresses in BCD
*D00000 to *D32767
*E00000 to *E32767
*En_00000 to *En_32767
(n = 0 to C)
Constants
---
Data Registers
---
Index Registers
---
Indirect addressing
using Index Registers
,IR0 to ,IR15
–2048 to +2047 ,IR0 to –2048 to +2047 ,IR15
DR0 to DR15, IR0 to IR15
,IR0+(++) to ,IR15+(++)
,–(– –)IR0 to, –(– –)IR15
Area
Ex1
Ex2
Ex1
Ex2
Ex1
Ex2
Name
Label
Operation
Error Flag
ER
ON if more than 4,095 characters are designated by Ex1
or Ex2.
ON the Ex1 and Ex2 data overlap.
ON if the Communications Port Enabled Flag for the com-
munications port number specified as the
Com Port num-
ber
for
Background Execution
is OFF when background
processing is specified.
OFF in all other cases.
Summary of Contents for SYSMAC CS1D-CPU**
Page 3: ...iv...
Page 29: ...xxx...
Page 185: ...146 List of Instructions by Function Code Section 2 4...
Page 1389: ...1350 CJ series Instruction Execution Times and Number of Steps Section 4 2...
Page 1390: ...1351 Appendix A ASCII Code Table ASCII SP Four leftmost bits Four rightmost bits...
Page 1391: ...1352 ASCII Code Table Appendix A...