Chapter 5 Relay Ladder Logic Programming 103
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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 Q02
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 (0~32767 ms) ON ON OFF ON 6 Preset stage 6
⑧
Period of preset stage (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)
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