7 Product-specific CAN objects XN300 slice modules
7.13 XN-322-16DIO-PC05
Gateway XN-312-GW-CAN 06/16 MN050003-EN
www.eaton.eu
161
Figure 69:
PWM signal measurement
a
High Time
b
Low Time
Design of the data bytes:
7.13.9 PWM Period Time (Object 0x3179, 0x317B, 0x317D, 0x317F)
Objects 0x3179, 0x317B, 0x317D, 0x317F are 16-bit count registers used to
record the period for the signal present at the corresponding inputs.
Period t
p
will be the time that passes between the rising edges of the signal
at the digital input. When the first rising signal edge is detected, a counter
will start being incremented every
μ
s. Then, when the second rising signal
edge is detected, the counter value will be recorded in the corresponding 16-
bit PwmPeriodTime(x) counter register. Once the value is transferred to
PwmPeriodTime(x), the counter will be reset.
Feature
Description
Value
EDS
Name
PwmHighTime1
0x3178
[MxSubExt317x]
ParameterName=PwmHighTimex
ObjectType=0x7
DataType=0x0006
AccessType=ro
PDOMapping=1
Count=1
PwmHighTime2
0x317A
PwmHighTime3
0x317C
PwmHighTime4
0x317E
Description
PWM High Time x
Object Code
VAR
Mapping
PDO
Manual
Data type
UNSIGNED16
Sub index
01 … FE
hex
Access
ro
Byte Byte
0:
Sub index
1
≦
n
≦
254
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
MSB
LSB
t
①
②
②
①
t
P
t
P
Содержание XN-312-GW-CAN
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