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3-1
Section
Analog I/O Units
178
Item
Voltage I/O
Current I/O
Analog
I
Number of inputs
2 inputs (2 words allocated)
g
Input
Section
Input signal range
0 to 5 VDC, 1 to 5 VDC,
0 to 10 VDC, or –10 to 10 VDC
0 to 20 mA or 4 to 20 mA
Max. rated input
±
15 V
±
30 mA
External input impedance
1 M
Ω
min.
250
Ω
Resolution
1/6000 (full scale)
Overall accuracy
25
°
C
0.3% full scale
0.4% full scale
y
0 to 55
°
C
0.6% full scale
0.8% full scale
A/D conversion data
16-bit binary (4-digit hexadecimal)
Full scale for –10 to 10 V: F448 to 0BB8 Hex
Full scale for other ranges: 0000 to 1770 Hex
Averaging function
Supported (Settable for individual inputs via DIP switch)
Open-circuit detection function
Supported
Analog
O
Number of outputs
1 output (1 word allocated)
g
Output
Section
Output signal range
1 to 5 VDC, 0 to 10 VDC, or
–10 to 10 VDC,
0 to 20 mA or 4 to 20 mA
Allowable external output load
resistance
1 k
Ω
min.
600
Ω
max.
External output impedance
0.5
Ω
max.
---
Resolution
1/6000 (full scale)
Overall accuracy
25
°
C
0.4% full scale
y
0 to 55
°
C
0.8% full scale
Set data (D/A conversion)
16-bit binary (4-digit hexadecimal)
Full scale for –10 to 10 V: F448 to 0BB8 Hex
Full scale for other ranges: 0000 to 1770 Hex
Conversion time
2 ms/point (6 ms/all points)
Isolation method
Photocoupler isolation between analog I/O terminals and internal circuits.
No isolation between analog I/O signals.
CPM1A-MAD11 Part Names
Expansion I/O connecting cable
Expansion connector
Analog I/O terminals
DIP switch
Connected to analog I/O devices.
Connected to the CPU Unit or previous Expansion Unit. The cable is provided
with the Unit and cannot be removed.
Caution
Do not touch the cables during operation. Static electricity may cause operating
errors.
Connected to the next Expansion Unit or Expansion I/O Unit.
Analog I/O Terminals
Expansion I/O
Connecting Cable
Expansion Connector
Содержание SRM1 - PROGRAMING 02-2001
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