IMO iSmart V4 - PWM Output Instruction (DC Transistor Output Models Only)

Chapter 5 Relay Ladder Logic Programming 111
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10BPWM Output Instruction (DC Transistor Output Models Only)
The transistor output model, T type, includes the capability to provide a PWM (Pulse Width Modulation) output on
terminal Q01 and Q02. The PWM instruction is able to output up to an 8-stage PWM waveform. It also provides a PLSY
(Pulse output) output on terminal Q01, whose pulse number and frequency can be changed. The table below describes number
and mode of PWM.
Mode
Output
P01
PWM, PLSY
Q01
P02
PWM, PLSY
Q02
Mode1 PWM Mode
P01 and P02 both can work under this mode. Each PWM has 8 group preset stages which contents Width and
Period. The 8 group preset values can be constant or other function current value. Each PWM has 10 parameters for
proper configuration. The table below describes each configuration parameter and lists each compatible memory type for
configuring PWM.
Symbol
Description
Enable
Select3
Select2
Select1
stage
PWM Output
①
PWM mode (1)
OFF
X
X
X
0
OFF
②
present stages as operating (1~8)
ON
OFF
OFF
OFF
1
Preset stage 1
③
Select1 (I01~g1F)
ON
OFF
OFF
ON
2
Preset stage 2
④
Select2 (I01~g1F)
ON
OFF
ON
OFF
3
Preset stage 3
⑤
Select3 (I01~g1F)
ON
OFF
ON
ON
4
Preset stage 4
⑥
present stages as operating (1~8)
ON
ON
OFF
OFF
5
Preset stage 5
⑦
Width of preset stage ② (0~32767 ms)
ON
ON
OFF
ON
6
Preset stage 6
⑧
Period of preset stage ② (1~32767 ms)
ON
ON
ON
OFF
7
Preset stage 7
⑨
Output port (Q01~Q02)
ON
ON
ON
ON
8
Preset stage 8
⑩
PWM code (P01~P02)
Example:
The state of M01, M02 and M03 are OFF-ON-OFF, so that PWM output pulse is at stage3 like this as setting
above.