Mitsubishi MELSEC-A Series Operating Manual page 101

6.
.
' , )
HOW TO
USE EACH FUNCTION
U E C I A
[Explanation)
(1)
Not
only
the program is read by an operation that is the same as the read
by the step number, but the conductivity state, ON/O,FF state of a device
contact,'and the'currmt valu&f a device are also monitored.
However, the conductivity state of an AOJ2CPU, A3HCPU, A3MCPU,
A2ACPU(SI)
and
.A3ACPU will not
be
not displayed.
(2) Explanation
of display contents
(a) Monitoring conductivity states
Checks whether an instruction such as OUT, MOV, BCD, BIN and
operation instruction is. executed.
The conductivity state is displayed on the left side of the instruction.
To display the conductivity state, set the conductivity state display
sefting (see Section 6.9.15)
fo
"YES"
in the OTHERS mode. When
the power supply is turned ON, the conductivity state display is set
to "NO".
Conductivity state display
When it is conductive,
'1"
is displayed;
1 0
1mov
when not conductive, it becomes blank.
However, when
a
conductivity state display
and the cursor overlap, "
1"
indicates con-
ductivity, and '
b "
indicates non-conductiv-
ity.
(b) Monitoring bit devices
The ON/OFF state of a bit device is displayed on the left side of the
device number.
When a bit device turns
ON, "
I"
is dis-
is displayed.
Contact ONlOFF display
played, and when a bit device turns
OFF "
0"
(c) Monitoring word devices
The current value of a word device is displayed. A 16-bit instruction
displays 1 -word data, and a 32-bit instruction displays 2-word data.
Change the display format (octal display, decimal display, hexadec-
imal display and ASCII display) of a current value according to the
Help operation (see Section 6.6.4).
102 HOV
102
~ 1 a 3
102
D l 113
Display of the current value of D l
(d) T/C monitoring
The contact instruction of T/C monitors the ON/OFF state of a
contact.
The OUT T/C instruction monitors the ON/OFF state of a contact and
a current value.
108
K70
Current value of T1
Contact state of T1
6-34