Data Exchange - Xchg(73); Single Word Distribute - Dist(80) - Omron SYSMAC C200HS Operation Manual

Data Movement
Flags
5-16-5 DATA EXCHANGE – XCHG(73)
Description
Flags
5-16-6 SINGLE WORD DISTRIBUTE – DIST(80)
Limitations
Description
Precautions
Data Distribution Operation
(C=0000 to 6655)
162
ER: N is not BCD between 0000 and 2000.
S and S+N or D and D+N are not in the same data area.
Indirectly addressed DM word is non-existent. (Content of ∗DM word is
not BCD, or the DM area boundary has been exceeded.)
Ladder Symbols
XCHG(73) @XCHG(73)
E1
E2
When the execution condition is OFF, XCHG(73) is not executed. When the exe-
cution condition is ON, XCHG(73) exchanges the content of E1 and E2.
If you want to exchange content of blocks whose size is greater than 1 word, use
work words as an intermediate buffer to hold one of the blocks using XFER(70)
three times.
Indirectly addressed DM word is non-existent. (Content of ∗DM word is
ER:
not BCD, or the DM area boundary has been exceeded.)
Ladder Symbols
DIST(80) @DIST(80)
S
DBs
C
C must be a BCD. If C≤6655, DBs must be in the same data area as DBs+C. If
C≥9000, DBs must be in the same data area as DBs+C–9000.
Depending on the value of C, DIST(80) will operate as a data distribution instruc-
tion or stack instruction. If C is between 0000 and 6655, DIST(80) will operate as
a data distribution instruction and copy the content of S to DBs+C. If the leftmost
digit of C is 9, DIST(80) will operate as a stack instruction and create a stack with
the number of words specified in the rightmost 3 digits of C.
Stack operation will be unreliable if the specified stack length is different from the
length specified in the last execution of DIST(80) or COLL(81).
When the execution condition is OFF, DIST(80) is not executed. When the exe-
cution condition is ON, DIST(80) copies the content of S to DBs+C, i.e.,C is
added to DBs to determine the destination word.
E1
E2
E1
S
DBs
C
S
3 4 5 2
Section 5-16
Operand Data Areas
E1: Exchange word 1
IR, SR, AR, DM, HR, TC, LR
E2: Exchange word 2
IR, SR, AR, DM, HR, TC, LR
E2
Operand Data Areas
S: Source data
IR, SR, AR, DM, HR, TC, LR, #
DBs: Destination base word
IR, SR, AR, DM, HR, TC, LR
C: Control word (BCD)
IR, SR, AR, DM, HR, TC, LR, #
DBs + C
3 4 5 2