IDEC MICROSmart FC6A Series Ladder Programming Manual

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
Q0M1
M2
M0
Modified Ladder Program 1
TIM
100
T0
M1
T0M0 Q0
M2
M0
Prohibited Ladder Program 2
TIM
100
T0
Q0M1
M2
M0
Modified Ladder Program 2
TIM
100
T0
M1
T0 Q0
TIM
50
T1 TIM
50
T1
M2
T1

IDEC MICROSmart FC6A Series Specifications

General

Brand	IDEC
Model	MICROSmart FC6A Series
Category	Computer Hardware
Language	English