Manual 85586V1
AtlasPC Digital Control, Vol. I
Woodward
63
Physical
The AtlasPC Analog Combo board connects to the CPU board through the
PC/104 bus. It does not connect to the AtlasPC power bus directly, it requires a
SmartCore board for this purpose.
Watchdog
& LED
32.768 kHz
Crystal
Two16-bit
4-channel
Serial A/D
converters
MC68332
Microcontroller
Analog Out
circuitry
4-20mA Analog
Outputs (2)
Thermocouple or 4-
20mA Inputs (15)
EEPROM
non-
volatile
memory
Mux &
Input cfg.
Flash memory
256 Kbyte
Isolation
Circuits
8-channel
Serial A/D
Converter
Isolation
Circuits
Isolated
Optocouplers
Dualport
RAM
Memory
PC/104 Interface
Signals
Speed
Sensing
Circuitry
PC/104 Interface
and Decode Logic
BDM
Port
Board Address
Dip Switches
Speed Sensor
Inputs (2)
Input cfg.
RTD or 4-20mA
Inputs (4)
One16-bit
VIS-003
00-01-18 KDW
Figure 7-2. AtlasPC Analog Combo Board Block Diagram
Specifications
Thermocouple/4–20 mA Analog Inputs
Number of channels
11
Input type
4–20 mA, type J or type K, thermocouple
(required)
Max. input current
24 mA if configured for 4–20 mA
Max. input voltage
±72.8 mV for thermocouples inputs
Thermocouple Range
Type E:–9.83 mV (–267.68 °C/–449.82 °F) to
72.8 mV (952.60 °C/1746.68 °F)
Type J:–8.09 mV (–209.72 °C/–345.50 °F) to
69.55 mV (1199.94 °C/2191.89 °F)
Type K:–6.45 mV (–263.95 °C/–443.11 °F) to
54.88 mV (1371.81 °C/2501.26 °F)
Type N:–4.34 mV (–263.14 °C/–441.65 °F) to
47.51 mV (1299.92 °C/2371.86 °F)
Type R:–0.22 mV (–48.27 °C/–54.89 °F) to
21.10 mV (1767.88 °C/3214.18 °F)
Type S:–0.23 mV (–48.60 °C/–55.48 °F) to
18.69 mV (1767.76 °C/3213.97 °F)
Type T:–6.25 mV (–265.71 °C/–446.28 °F) to
20.87 mV (399.97 °C/751.95 °F)
Summary of Contents for AtlasPC
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