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Step Run and Break
Section 4-3
108
4-3-3 Break Point
The break point is where the program execution is paused. Specifying a break
point will automatically stop the program execution at the specified point.
As an example of break point, the following introduces the case where moni-
toring the IR value used between FOR and NEXT.
Monitoring IR
The Step Run enables monitoring the contents of Index Registers (IR) while
executing a ladder diagram in the CX-Programmer's [Set Values] window,
which used to be impossible.
Following diagram shows an example of IR usage extracted from the sample
in
6-2 Index Registers
of
CS/CJ Series Programming Manual
(W394). Setting a
break pointer within the FOR to NEXT loop (the hatched part in the diagram)
enables to check the change of IR within the FOR to NEXT loop.
Program
address
Instruction word
(mnemonic)
Operand
000000
FOR
&100
000001 LD
NOT ,IR2
000002 TIM
,IR0+
@D0
000003 LD
,IR1+
000004
OUT
,IR2+
000005 LD
P_On
+
D0
000007 NEXT
000008 END
,IR1+
,
IR2
,IR2+
P_On
END
NEXT
++
D0
TIM
,IR0+
@D0
FOR
&100
Summary of Contents for CX-Simulator 1.9
Page 1: ...Cat No W366 E1 10 CX Simulator Ver 1 9 SYSMAC WS02 SIMC1 E OPERATION MANUAL...
Page 2: ......
Page 3: ...SYSMAC WS02 SIMC1 E CX Simulator Ver 1 9 Operation Manual Revised December 2009...
Page 24: ...xxv...
Page 30: ...xxxi...
Page 35: ...xxxvi...
Page 39: ......
Page 63: ...Comparison of the CX Simulator and SYSMAC CS CJ series PLCs Section 1 6 24...
Page 75: ...Installing and Uninstalling the Software Section 2 1 36...
Page 157: ...Task Debugging Section 4 4 118...
Page 195: ...Connection with Application Programs Section 7 2 156...
Page 225: ...Checking the Result Section 8 5 186...
Page 277: ...Other Functions Section 9 4 238...
Page 289: ...Other Tips for Troubleshooting Section 10 3 250...
Page 304: ......
Page 305: ......