Omron SYSMAC C200HS

177
Precautions Placing other instructions between ZCP(88) and the operation which accesses
the EQ, LE, and GR flags may change the status of these flags. Be sure to ac -
cess them before the desired status is changed.
Flags ER: Indirectly
addressed DM word is non-existent. (Content of ∗ DM word is
not BCD, or the DM area boundary has been exceeded.)
LL is greater than UL.
EQ: ON if LL ≤ CD ≤ UL
LE: ON if CD < LL.
GR: ON if CD > UL.
The
following example shows how to save the comparison result immediately . If
IR 100 > AB1F, IR 00200 is turned ON; if #0010 ≤ IR 100 ≤ AB1F, IR 00201 is
turned ON; if IR 100 < 0010, IR 00202 is turned ON.
ZCP(88)
#0010
IR 100
00000
25505
00200
25507
00202
TR
0
25506
00201
Greater Than
(above range)
Equal
(within range)
Less Than
(below range)
Address Instruction Operands Address Instruction Operands
00000 LD 00000
00001 OUT TR 0
00002 ZCP(88)
IR 100
# 0010
00003 LD # AB1F
00004 AND 25505
00005 OUT 00200
00006 LD TR 0
00007 AND 25506
00008 OUT 00201
00009 LD TR 0
00010 AND 25507
00011 OUT 00202
#AB1F
5-17-7 DOUBLE AREA RANGE COMPARE – ZCPL(––)
CD: Compare data
IR, SR, AR, DM, HR, LR
LL: Lower limit of range
IR, SR, AR, DM, HR, LR
Ladder Symbols
Operand Data Areas
UL: Upper limit of range
IR, SR, AR, DM, HR, LR
ZCPL(––)
CD
LL
UL
Limitations The 8-digit value in LL+1,LL must be less than or equal to UL+1,UL.
CD
and CD+1 must be in the same data area, as must LL and LL+1, and UL and
UL+1.
Example:
Saving ZCP(88) Results
Data Comparison Section 5-17