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FX2N-8AD Analog input block Specifications 7
7-3
Table 7.4: Voltage/current input specifications
Item Voltage input Current input
Analog input range
-10 to +10 V DC
(input resistance: 200 k
Ω
)
Adjustment is enabled in following condition:
Offset value: -10 to +9 V
Gain value: 10 V or less
"Gain - Offset": > 1 V
(Resolution is constant.)
However, change is disabled while analog
value direct display is used.
Maximum absolute input: ±15 V
-20 to +20 mA DC, +4 to +20 mA DC
(input resistance: 250
Ω
)
Adjustment is enabled in following condition:
Offset value: -20 to +17 mA
Gain value: 30 mA or less
"Gain - Offset": > 3 mA
(Resolution is constant.)
However, change is disabled while analog
value direct display is used.
Maximum absolute input: ±30 mA
Digital output Signed 16-bit binary Signed 16-bit binary
Resolution
•
0.63 mV (20 V
×
1/32000)
•
2.5mV (20 V
×
1/8000)
•
2.50
µ
A (40 mA
×
1/16,000)
during input of -20 to +20 mA
•
5.00
µ
A (40 mA
×
1/8,000)
during input of -20 to +20 mA
•
2.00
µ
A (16 mA
×
1/8,000)
during input of +4 to +20 mA
•
4.00
µ
A (16 mA
×
1/4,000)
during input of +4 to +20 mA
Total accuracy
Ambient temperature: 25
°
C ± 5
°
C
±0.3% (±60 mV) against full scale 20 V
Ambient temperature: 0 to +55
°
C
±0.5% (±100 mV) against full scale 20 V
Ambient temperature: 25
°
C ± 5
°
C
±0.3% (±120
µ
A) against full scale 40 mA
+4 to +20mA input is same (±120
µ
A)
Ambient temperature: 0 to +55
°
C
±0.5% (±200
µ
A) against full scale 40 mA
+4 to +20mA input is same (±200
µ
A)