Hitachi NJI-350B - Manual (Page 187)

Chapter 5 Instruction Specifications
5-137
Item number FUN instructions-12 Name PWM operation control
Ladder format Condition code Processing time ( µs) Remark
R7F4 R7F3 R7F2 R7F1 R7F0 Average Maximum
FUN 147 (s) DER ERR SD V C
↕ z z z z
Instruction format Number of steps 135 
Condition Steps
FUN 147 (s) — 3
Bit Word Double word
Usable I/O
X Y
R,
M
TD, SS,
CU, CT WX WY
WR,
WM TC DX DY
DR,
DM C
o
nstant
Other
s
Argument (PWM output
number)
{
Function
PWM output number: H01 to H04
Operation instruction: H00 – Stop,
H01 - Start
• Starts/stops the PWM output of the specified PWM output number.
Notes
• If a value other than H01 to H04 is specified as the PWM output number, DER will be set to “1” and no processing will be
performed.
• If the external I/O corresponding to the PWM output number is set to a function other than PWM output, DER will be set to
“1” and no processing will be performed.
• If PWM output is activated with this instruction, the output control flag (R7FC to R7FF) corresponding to the specified
PWM output number will turn on and off.
• The PWM output operation does not stop, even when CPU operation is stopped.
• When the CPU is not operating, the PWM output continues/stops according to the setting of the special internal output
(output selection at R7DC stop).
Program example
R7
LD R7
AND DIF7
[
WR7 = H101
FUN 147 ( WR7 )
]
DIF7
WR7 = H0101
FUN 147 (WR7)
Program description
• Prior to starting a PWM output operation, various settings required for the PWM output operation are reflected in the
special internal outputs, and the PI/O function setting flag (R7F5) is turned on while the CPU is being stopped.
For details on the special internal output settings, see Chapter 8.
Starts the PWM output No. 1 (Y100) operation.
S PWM output number Operation instruction
15 8 7 0
FUN 147 (s
)