Delta C2000 Series User Manual page 791

Chapter 16 PLC Function ApplicationsC2000
Example
LD X0
RST C0
LD X1
CNT C0 K5
LD C0
OUT Y0
1. When X0=On and the RST command is
executed, the current value of C0 will
revert to 0, and the output contact will
revert to Off.
2. When X1 changes from Off→On, the
current value of the counter will execute
an increase (add one).
3. When the count of counter C0 reaches the
set value K5, the contact C0 will come On,
and the current value of C0＝ set value
=K5. Afterwards, signal C0 triggered by X1
cannot be received, and the current value
of C0 will remain K5.
16-5-2 Introduction to special relay functions (special M)
R/W items: RO: read only function; RW: read and write function
Special
M
Operates monitor NO contact (contact a). NO while RUN, contact a. This contact
M1000
is On while in the RUN state.
Operates monitor NC contact (contact b). NC while RUN, contact b. This contact is
M1001
Off while in the RUN state.
Initiates a forward (the instant RUN is On) pulse. Initial pulse, contact a. Produces
M1002
a forward pulse the moment RUN begins; its width = scan cycle
Initiates a reverse (the instant RUN is Off) pulse. Initial pulse, contact a. Produces
M1003
a reverse pulse the moment RUN ends; the pulse width = scan cycle
M1004 Reserved
M1005 Drive malfunction instructions
M1006 Converter has no output (1 = no output, 0 = output)
M1007 Drive direction FWD(0)/REV(1)
M1008
– --
M1010
M1011 10 ms clock pulse, 5ms On / 5ms Off
M1012 100 ms clock pulse, 50ms On / 50ms Off
M1013 1 sec. clock pulse, 0.5s On / 0.5s Off
M1014 1 min. clock pulse, 30s On / 30s Off
M1015 Frequency attained (when used together with M1025)
M1016 Parameter read/write error
M1017 Parameter write successful
M1018 --
X0
RST C0
X1
CNT C0 K5
C0
Y0
Description of Function
16-30
4.
R/W *
RO
RO
RO
RO
RO
RO
RO
RO
--
RO
RO
RO
RO
RO
RO
RO
--