FC6A S
ERIES
MICROS
MART
L
ADDER
P
ROGRAMMING
M
ANUAL
FC9Y-B1726
4-33
4: B
ASIC
I
NSTRUCTIONS
Restriction on Ladder Programming
Due to the structure of WindLDR, the following ladder diagram cannot be programmed — a closed circuit block is formed by
vertical lines, except for right and left power rails, and the closed circuit block contains one or more prohibited instructions shown
in the table below.
Modifying Prohibited Ladder Programs
Intended operation can be performed by modifying the prohibited ladder program as shown in the examples below:
Prohibited
Instruction
Relay 1
Program
Relay 2
Closed Circuit Block
Vertical
Line A
Vertical
Line B
Program
Left Power Rail
Right Power Rail
Prohibited Instructions
OUT, OUTN, SET, RST, TML, TIM, TMH, TMS, TMLO, TIMO, TMHO, TMSO, CNT, CDP, CUD, CNTD, CDPD,
CUDD, SFR, SFRN, SOTU, SOTD
Error Detection
When converting the ladder program, an error message is shown, such as “TIM follows an invalid device.”
Conversion fails to create mnemonics and the program is not downloaded to the FC6A Series MICROSmart.
M0
Prohibited Ladder Program 1
TIM
100
T0
Q0
M1
M2
M0
Modified Ladder Program 1
TIM
100
T0
M1
T0
M0
Q0
M2
M0
Prohibited Ladder Program 2
TIM
100
T0
Q0
M1
M2
M0
Modified Ladder Program 2
TIM
100
T0
M1
T0
Q0
TIM
50
T1
TIM
50
T1
M2
T1
Summary of Contents for MICROSmart FC6A Series
Page 1: ...B 1726 7 FC6A SERIES Ladder Programming Manual ...
Page 8: ...Preface 7 FC6A SERIES MICROSMART LADDER PROGRAMMING MANUAL FC9Y B1726 ...
Page 32: ...1 OPERATION BASICS 1 20 FC6A SERIES MICROSMART LADDER PROGRAMMING MANUAL FC9Y B1726 ...
Page 96: ...3 INSTRUCTIONS REFERENCE 3 18 FC6A SERIES MICROSMART LADDER PROGRAMMING MANUAL FC9Y B1726 ...
Page 130: ...4 BASIC INSTRUCTIONS 4 34 FC6A SERIES MICROSMART LADDER PROGRAMMING MANUAL FC9Y B1726 ...
Page 192: ...9 SHIFT ROTATE INSTRUCTIONS 9 12 FC6A SERIES MICROSMART LADDER PROGRAMMING MANUAL FC9Y B1726 ...
Page 272: ...12 DISPLAY INSTRUCTIONS 12 24 FC6A SERIES MICROSMART LADDER PROGRAMMING MANUAL FC9Y B1726 ...
Page 284: ...14 REFRESH INSTRUCTIONS 14 6 FC6A SERIES MICROSMART LADDER PROGRAMMING MANUAL FC9Y B1726 ...
Page 502: ...25 DATA LOG INSTRUCTIONS 25 22 FC6A SERIES MICROSMART LADDER PROGRAMMING MANUAL FC9Y B1726 ...
Page 546: ...26 SCRIPT 26 44 FC6A SERIES MICROSMART LADDER PROGRAMMING MANUAL FC9Y B1726 ...
Page 598: ...APPENDIX A 14 FC6A SERIES MICROSMART LADDER PROGRAMMING MANUAL FC9Y B1726 ...