161
Appendix C
External Variables
Note These words are external variables for the OMRON FB Library. Do not use these words for creating
function blocks.
Classification Name External variable in
CX-Programmer
Data type Address
Conditions Flags Greater Than or Equals (GE) Flag P_GE BOOL CF00
Not Equals (NE) Flag P_NE BOOL CF001
Less Than or Equals (LE) Flag P_LE BOOL CF002
Instruction Execution Error (ER) Flag P_ER BOOL CF003
Carry (CY) Flag P_CY BOOL CF004
Greater Than (GT) Flag P_GT BOOL CF005
Equals (EQ) Flag P_EQ BOOL CF006
Less Than (LT) Flag P_LT BOOL CF007
Negative (N) Flag P_N BOOL CF008
Overflow (OF) Flag P_OF BOOL CF009
Underflow (UF) Flag P_UF BOOL CF010
Access Error Flag P_AER BOOL CF011
Always OFF Flag P_Off BOOL CF114
Always ON Flag P_On BOOL CF113
Clock Pulses 0.02 second clock pulse bit P_0_02s BOOL CF103
0.1 second clock pulse bit P_0_1s BOOL CF100
0.2 second clock pulse bit P_0_2s BOOL CF101
1 minute clock pulse bit P_1mim BOOL CF104
1.0 second clock pulse bit P_1s BOOL CF102
Auxiliary Area Flags/
Bits
First Cycle Flag P_First_Cycle BOOL A200.11
Step Flag P_Step BOOL A200.12
First Task Execution Flag P_First_Cycle_Task BOOL A200.15
Maximum Cycle Time P_Max_Cycle_Time UDINT A262
Present Scan Time P_Cycle_Time_Value UDINT A264
Cycle Time Error Flag P_Cycle_Time_Error BOOL A401.08
Low Battery Flag P_Low_Battery BOOL A402.04
I/O VerIFication Error Flag P_IO_Verify_Error BOOL A402.09
Output OFF Bit P_Output_Off_Bit BOOL A500.15
OMRON FB Library
words (see note)
CIO Area specification P_CIO WORD A450
HR Area specification P_HR WORD A452
WR Area specification P_WR WORD A451
DM Area specification P_DM WORD A460
EM0 to C Area specification P_EM0 to P_EMC WORD A461 to
A473
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