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DVP-ES2/EX2/SS2/SA2/SX2/SE Operation Manual - Programming
3-142
API Mnemonic Operands Function
58
PWM
Pulse Width Modulation
Controllers
ES2/EX2 SS2 SA2
SE
SX2
Bit Devices Word devices Program Steps Type
OP
X Y M S K H KnX KnY KnM KnS T C D E F
S
1
* * * * * * * * ***
S
2
* * * * * * * * ***
D *
PWM: 7 steps
PULSE 16-bit 32-bit
ES2/EX2 SS2
SA2
SE
SX2 ES2/EX2 SS2
SA2
SE
SX2 ES2/EX2 SS2
SA2
SE
SX2
Operands:
S
1
: Pulse output width (ms) S
2
: Pulse output cycle (ms) D: Pulse output device (Y0, Y1, Y2,Y3)
Explanations:
38. S
1
is specified as pulse output width (t). S
2
is specified as pulse output cycle (T).
Rule: S1 ≦ S2. (It is not applicable to DVP-SE.)
Reference Table for Output Cycle and Output Width
Output Y0 Y2 Y1 Y3
t 0~1000 0~32767
Range of
pulse output
width / cycle
T 1~1,000 1~32,767
Flag for switching unit M1112 M1113 M1070 M1071
Flag for high-speed output M1116 is ON. (Unit: 1us) M1117 is ON. (Unit: 10us)
39. S
1
is specified as pulse output width (t). S
2
is specified as pulse output cycle (T).
Rule: S1 ≦ S2. (It is only applicable to DVP-SE.)
Reference Table for Output Cycle and Output Width
Output Y0 Y1 Y2 Y3
t 0~1000 0~32767
Range of
pulse output
width / cycle
T 1~1000 1~32767
Flag for switching unit M1112 M1070 M1113 M1071
40. Pulse output devices for operand D: Y0, Y1, Y2, Y3,
41. When several pulse output instructions (PLSY, PWM, PLSR) use Y1 or Y3 as the output
device in the same scan cycle, PLC will perform the instruction which is executed first.
42. When S
1
≦0, S
2
≦0 or S
1
＞S
2
, errors will occur (M1067 and M1068 will not be ON) and no
output will be generated from pulse output devices.
When S
1
= S
2
, the pulse output device will
be ON continuously.
43. S
1
, S
2
can be changed when PWM instruction is being executed.
44. When M1112 = ON, the unit of Y0 output pulse is 10μs, when M1112 = OFF, the unit is 100μs.
45. When M1070 = ON, the unit of Y1 output pulse is 100μs, when M1070 = OFF, the unit is 1ms.