3-1
Section
Analog I/O Units
183
1 to 5 V
The hexadecimal values 0000 to 1770 (0 to 6000) correspond to an analog volt-
age range of 1 to 5 V. The entire output range is 0.8 to 5.2 V.
Conversion
Data
Hexadecimal
(Decimal)
5.2 V
5 V
1 V
0.8 V
0 V
FED4
(–300)
1770
(6000)
189C
(6300)
8000
0000 (0)
7FFF
0 to 20 mA
The hexadecimal values 0000 to 1770 (0 to 6000) correspond to an analog cur-
rent range of 0 to 20 mA. The entire output range is 0 to 21 mA.
Conversion
Data
Hexadecimal
(Decimal)
21 mA
20 mA
0 mA
1770
(6000)
189C
(6300)
8000
0000
(0)
7FFF
4 to 20 mA
The hexadecimal values 0000 to 1770 (0 to 6000) correspond to an analog cur-
rent range of 4 to 20 mA. The entire output range is 3.2 to 20.8 mA.
Conversion
Data
Hexadecimal
(Decimal)
20.8 mA
20 mA
4 mA
3.2 mA
0 mA
FED4
(–300)
1770
(6000)
189C
(6300)
8000
0000 (0)
7FFF
The averaging function can be enabled for inputs using the DIP switch. The
averaging function stores the average (a moving average) of the last eight input
values as the converted value. Use this function to smooth inputs that vary at a
short interval.
The open-circuit detection function is activated when the input range is set to 1 to
5 V and the voltage drops below 0.8 V, or when the input range is set to 4 to
20 mA and the current drops below 3.2 mA. When the open-circuit detection
function is activated, the converted data will be set to 8000.
Averaging Function for
Analog Inputs
Open-circuit Detection
Function for Analog
Inputs
Содержание SRM1 - PROGRAMING 02-2001
Страница 1: ...Programmable Controllers Cat No W353 E1 06 SYSMAC CPM1 CPM1A CPM2A CPM2C SRM1 V2 PROGRAMMING MANUAL ...
Страница 2: ...CPM1 CPM1A CPM2A CPM2C SRM1 V2 Programmable Controllers Programming Manual Revised February 2008 ...
Страница 3: ...iv ...
Страница 5: ...vi ...
Страница 9: ...x ...
Страница 15: ...xvi ...