Manual 85586V1
AtlasPC Digital Control, Vol. I
Woodward
27
Analog Outputs
Number of channels
4
Output type
4–20 mA outputs, non-isolated
Common Mode
Voltage
15 Vdc ±10%
Current output
4–20 mA
Max current output
25 mA ±5%
Min. load resistance
0
Ω
Max load resistance
300
Ω
at 22 mA
Resolution 12
bits
Accuracy @ 25 °C
less than ±0.1% of full scale, 0.025 mA
Temperature Drift
140 PPM/°C, 0.23 mA maximum
70 ppm/°C, typical (0.45% of full scale, 0.11375 mA)
Discrete Inputs
Number of channels
16
Input type
Optically isolated discrete input
Input thresholds
< 8 Vdc = “OFF”
> 16 Vdc = “ON”
Input current
3 mA @ 24 Vdc
Contact voltage
24 Vdc isolated
Max input voltage
28 Vdc
Isolation voltage
500 Vac, all channels are isolated from the AtlasPC platform
•
For EMC compliance, the on-board, isolated, +24 Vdc supply is
recommended for use as power to contacts, 100 mA maximum.
•
All channels are common to each other. Isolation is with respect to the
AtlasPC platform and other I/O types.
Serial I/O
Number of channels
3
Channel configuration
1 - RS-232, 9 pin sub D connector
2 - RS-232/RS-485/RS-422 software configurable, terminal block
connections
Termination Resistor
Located on the board and are accessible via field wiring.
Termination resistors are provided for RS-485 and RS-422
Receive.
Isolation Voltage
500 Vdc
AtlasPC SmartCore Board Operation
This board includes no potentiometers and requires no field calibration. A
SmartCore board may be replaced with another board of the same part number
without any adjustment.
Summary of Contents for AtlasPC
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