I/O Refresh - Iorf(97) - Omron CQM1H - PROGRAM Programming Manual

Special Instructions
Clearing Messages
Flags
Example
00000
00001
DM contents
DM 0010 4 1
DM 0011 4 3
DM 0012 4 5
DM 0013 4 7
DM 0014 4 9
DM 0015 4 B
DM 0016 4 D
DM 0017 4 F
5-28-3 I/O REFRESH – IORF(97)
Limitations
Description
Flags
382
In handling messages from the same area, those with the lowest ad-
dress values have higher priority.
In handling indirectly addressed messages (i.e. *DM), those with the
lowest final DM addresses have higher priority.
To clear a message, execute FAL(06) 00 or clear it via a Programming Con-
sole or the SSS.
If the message data changes while the message is being displayed, the dis-
play will also change.
ER: Indirectly addressed EM/DM word is non-existent.
(Content of *EM/*DM word is not BCD, or the EM/DM area boundary
has been exceeded.)
The following example shows the display that would be produced for the
instruction and data given when 00000 was ON. If 00001 goes ON, a mes-
sage will be cleared.
ASCII
equivalent
4 2 A B
4 4 C D
4 6 E F
4 8 G H
4 A I J
4 C K L
4 E M N
5 0 O P
Ladder Symbol
IORF(97)
St
E
St must be less than or equal to E.
To refresh I/O words, specify the first (St) and last (E) I/O words to be
refreshed. When the execution condition for IORF(97) is ON, all words
between St and E will be refreshed. This will be in addition to the normal I/O
refresh performed during the CPU Unit's cycle.
Note This instruction will have no effect on words that are not being used for I/O.
There are no flags affected by this instruction.
Address Instruction
MSG(46)
00000
DM 0010
00001
FAL(06) 00
00002
00003
MSG
ABCDEFGHIJKLMNOP
Section 5-28
Operands
LD
MSG(46)
DM
LD
FAL(06)
Operand Data Areas
St: Starting word
IR 000 to IR 115
E: End word
IR 000 to IR 115
00000
0010
00001
00