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(4)
At setting abnormality
If the sum of the frequencies of the pulse outputs is set to exceed 5 k when the PI/O function setting flag (R7F5) is turned
on, the bit for the total pulse frequency abnormality in the error display special internal output turns on, and none of the
pulse outputs are output. In addition, individual setting of pulse outputs cannot be performed when the bit for the total
pulse frequency abnormality is turned on.
Bit:
15
14
WRF057:
a
Figure 8.36 Special internal output for input/output function abnormality
Bit
a
Total pulse frequency abnormality
b
Pulse 4 frequency abnormality
c
Pulse 3 frequency abnormality
d
Pulse 2 frequency abnormality
e
Pulse 1 frequency abnormality
f
Counter 4 preset value abnormality
g
Counter 3 preset value abnormality
h
Counter 2 preset value abnormality
i
Counter 1 preset value abnormality
(5)
Individual setting of pulse outputs
It is possible to set the frequency and number of output pulses for each pulse output by the special internal outputs for
individual setting, regardless of whether the CPU is operating or stopped. Turn on the corresponding bit in the following
special internal outputs when only the pulse frequency or number of output pulses should be changed.
If the total of frequencies exceeds 5 kHz as a result of performing individual setting of pulse outputs for pulse outputs
that are working normally, the bit for the error display special internal output that corresponds to the changed pulse output
will turn on, and that pulse output will work at the frequency before the setting change. (The value set in the special
internal output also returns to the previous value before the setting was made.)
WRF058:
Pulse output 1
WRF059:
Pulse output 2
WRF05A:
Pulse output 3
WRF05B:
Pulse output 4
Figure 8.37 Special internal outputs for setting individual pulse outputs
Bit
a
Number of output pulse change request
b
Output pulse frequency change request
Chapter 8 High-speed counter, PWM / Pulse train output and Analogue I/O
13
12
11
10
9
Not used
Description of abnormality
15
Description
8-20
8
7
6
5
b
c
d
Related terminal
Y100 to Y103
2
Not used
Not used
Not used
Not used
4
3
2
1
0
e
f
g
h
i
Y103
Y102
Y101
Y100
X6
X4
X2
X0
1
0
a
b
a
b
a
b
a
b
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