129
Interlocks, jumps, SBN(92), and END(01) must not be used within step pro-
grams.
Bits used as control bits must not be used anywhere else in the program un-
less they are used to control the step (see example 3, below).
If IR bits are used for control bits, their status will be lost during any power
interruption. If it is necessary to maintain status to resume execution at the
same step, HR bits must be used.
1811:
Step Start flag; turns ON for one cycle when STEP(08) is executed
and can be used to reset counters in steps as shown below if neces-
sary.
SNXT(09) 1000
CP
R
CNT 01
#0003
0000
0100
1811
STEP(08) 1000
1 cycle
1811
1000
Start
0000
LD
0000
0001
SNXT(09)
1000
0002
STEP(08)
1000
0003
LD
0100
0004
LD
1811
0005
CNT
01
#
0003
Address
Instruction
Operands
Precautions
Flags
Step Instructions
Section 5-18
Содержание SYSMAC C20K
Страница 1: ...Cat No W146 E1 5 Programmable Controllers SYSMAC C20K C28K C40K C60K ...
Страница 2: ...K type Programmable Controllers OPERATION MANUAL Revised July 1999 ...
Страница 3: ...iv ...
Страница 5: ...vi ...
Страница 19: ...7 SECTION 2 Hardware Considerations 2 1 Introduction 2 2 Indicators 2 3 PC Configuration ...
Страница 225: ...Cat No W146 E1 5 Note Specifications subject to change without notice Printed in Japan Authorized Distributor ...