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171
Flags
ER:
Indirectly addressed DM word is non-existent. (Content of
∗
DM word is
not BCD, or the DM area boundary has been exceeded.)
EQ:
ON if Cp1 equals Cp2.
LE:
ON if Cp1 is less than Cp2.
GR:
ON if Cp1 is greater than Cp2.
Flag
Address
C1 < C2
C1 = C2
C1 > C2
GR
25505
OFF
OFF
ON
EQ
25506
OFF
ON
OFF
LE
25507
ON
OFF
OFF
The following example shows how to save the comparison result immediately. If
the content of HR 09 is greater than that of 010, 00200 is turned ON; if the two
contents are equal, 00201 is turned ON; if content of HR 09 is less than that of
010, 00202 is turned ON. In some applications, only one of the three OUTs would
be necessary, making the use of TR 0 unnecessary. With this type of program-
ming, 00200, 00201, and 00202 are changed only when CMP(20) is executed.
CMP(20)
010
HR 09
00000
25505
00200
25507
00202
TR
0
25506
00201
Greater Than
Equal
Less Than
Address
Instruction
Operands
Address
Instruction
Operands
00000
LD
00000
00001
OUT
TR
0
00002
CMP(20)
010
HR
09
00003
LD
TR
0
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
The following example uses TIM, CMP(20), and the LE flag (25507) to produce
outputs at particular times in the timer’s countdown. The timer is started by turn-
ing ON 00000. When 00000 is OFF, TIM 010 is reset and the second two
CMP(20)s are not executed (i.e., executed with OFF execution conditions). Out-
put 00200 is produced after 100 seconds; output 00201, after 200 seconds; out-
put 00202, after 300 seconds; and output 00204, after 500 seconds.
Example 1:
Saving CMP(20) Results
Example 2:
Obtaining Indications
during Timer Operation
Data Comparison
Section 5-17
Содержание SYSMAC C200HS
Страница 1: ...Cat No W235 E1 05 C200HS SYSMAC Programmable Controllers...
Страница 2: ...C200HS Programmable Controllers Operation Manual Revised February 2002...
Страница 3: ...iv...
Страница 5: ...vi...
Страница 379: ...371 SR word Corresponding key s Bit 279 03 04 05 3 06 07 VER 08 09 Monitoring Operation and Modifying Data Section 7 1...
Страница 470: ...468 Programmer Program Date Page Word Contents Notes Word Contents Notes Data Storage...
Страница 471: ...469 Programmer Program Date Page TC address T or C Set value Notes TC address T or C Set value Notes Timers and Counters...