199
program that was suspended is then restarted after 10 seconds. Note that
the ladder diagram simply has the mnemonic code typed after the BPRG(96)
instruction.
BPRG(96) 00
IF<02>
BPPS<11>
ELSE<03>
BPPS<11>
IEND<04>
TIMW<03>
BPRS<12>
BPRS<12>
BEND<01>
00000
00001
01
02
000
#0100
01
02
Address
Instruction
Operands
00000
LD
00000
00001
BPRG(96)
00
00002
IF<02>
00001
00003
BPPS<11>
01
00004
ELSE<03>
00005
BPPS<11>
02
00006
IEND<04>
00007
TIMW<03>
000
#
0100
00008
BPRS<12>
01
00009
BPRS<12>
02
00010
BEND<01>
5-22
Step Instructions
The step instructions STEP(08) and SNXT(09) are used in conjunction to set
up breakpoints between sections in a large program so that the sections can
be executed as units and reset upon completion. A section of program will
usually be defined to correspond to an actual process in the application. (Re-
fer to the application examples later in this section.) A step is like a normal
programming code, except that certain instructions (e.g. IL(02)/ILC(03),
JMP(04)/JME(05)) may not be included.
5-22-1
STEP DEFINE and STEP START–STEP(08)/SNXT(09)
B
: Control bit
IR, AR, HR, LR
Ladder Symbols
Definer Data Areas
STEP(08) B
STEP(08)
B
: Control bit
IR, AR, HR, LR
SNXT(09) B
Control bits within one section of step programming must be sequential and
from the same word.
STEP(08) uses a control bit in the IR or HR areas to define the beginning of
a section of the program called a step. STEP(08) does not require an execu-
tion condition, i.e., its execution is controlled through the control bit. To start
execution of the step, SNXT(09) is used with the same control bit as used for
STEP(08). If SNXT(09) is executed with an ON execution condition, the step
with the same control bit is executed. If the execution condition is OFF, the
step is not executed. The SNXT(09) instruction must be written into the pro-
Limitations
Description
Step Instructions
Section 5-22
Содержание SYSMAC C1000H
Страница 1: ...Cat No W140 E1 04 Programmable Controllers SYSMAC C1000H C2000H...
Страница 2: ...C1000H C2000H Programmable Controllers Operation Manual Revised May 2003...
Страница 3: ...iv...
Страница 5: ...vi...
Страница 395: ...Cat No W140 E1 04 Note Specifications subject to change without notice Printed in Japan Authorized Distributor...
Страница 396: ...Cat No W140 E1 04 SYSMAC C1000H C2000H Programmable Controllers OPERATION MANUAL...