326
Special Instructions Section 5-26
Clearing Messages 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.
Flags ER: Indirectly addressed DM word is non-existent. (Content of *DM word
is not BCD, or the DM area boundary has been exceeded.)
Example 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.
5-26-3 I/O REFRESH – IORF(97)
Note This instruction is not supported by SRM1 PCs.
Limitations St must be less than or equal to E.
Description 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.
Flags There are no flags affected by this instruction.
DM contents ASCII
equivalent
DM 0010 4 1 4 2 A B
DM 0011 4 3 4 4 C D
DM 0012 4 5 4 6 E F
DM 0013 4 7 4 8 G H
DM 0014 4 9 4 A I J
DM 0015 4 B 4 C K L
DM 0016 4 D 4 E M N
DM 0017 4 F 5 0 O
P
MSG(46)
DM 0010
FAL(06) 00
00000
00001
Address Instruction Operands
00000 LD 00000
00001 MSG(46)
DM 0010
00002 LD 00001
00003 FAL(06) 00
MSG
ABCDEFGHIJKLMNOP
St: Starting word
IR 000 to IR 115
IORF(97)
St
E
Ladder Symbol
E: End word
IR 000 to IR 115
Operand Data Areas
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