Справочник Пользователя для Mitsubishi Electronics FX3S-MT/ES
11 Use of Built-in Analog
101
FX
3S
Series Programmable Controllers
User's Manual - Hardware Edition
11
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11.3 Built-in analog input function
11.3
Built-in analog input function
11.3.1 Outline of functions
The main unit has two built-in analog voltage inputs (shown in the figure below).
A/D conversion data will be automatically written to special data registers of the PLC.
A/D conversion data will be automatically written to special data registers of the PLC.
11.3.2 Applicable PLC
The following models have built-in analog inputs.
11.3.3 Analog input performance specifications
Applicable PLC
FX3S-30MR/ES-2AD
FX3S-30MT/ES-2AD
FX3S-30MT/ESS-2AD
Item
Input specification
Analog input range
0 to 10 V DC (Input resistance: 115.7 kΩ)
Absolute maximum input
-0.5 V, +15 V
Digital output
10 bits, binary
Device allocation
D8270 (The digital value of CH1 is stored)
D8271 (The digital value of CH2 is stored)
D8271 (The digital value of CH2 is stored)
Resolution
10 mV (10 V/1000)
Total accuracy
± 1.0 % (± 100 mV) for 10 V full scale
(when ambient temperature is 25 °C ± 5 °C)
± 2.0 % (± 200 mV) for 10 V full scale
(when ambient temperature is 0 °C to 55 °C)
(when ambient temperature is 25 °C ± 5 °C)
± 2.0 % (± 200 mV) for 10 V full scale
(when ambient temperature is 0 °C to 55 °C)
A/D conversion time
180 μs
(The data will be updated at every scan time of the PLC.)
(The data will be updated at every scan time of the PLC.)
Input characteristics
Insulation method
No insulation between each channel or the PLC.
Occupied points
0 point
(This number is not related to the maximum number of input/output points of the
PLC.)
(This number is not related to the maximum number of input/output points of the
PLC.)
Analog input
enlarged view
V-
V2+
V1+
Digital output
Analog input
0
10.2V
1020
1000
10V