16.8 Analog
Inputs
Input Points
5 at 10V/20mA: 250
Ω
resistance user configurable
with jumper link.
1 at 32.768V
Resolution
15 bits over the 10V and 32.768V measurement range.
14 bits over the 20mA measurement range.
Input Resistance
20k
Ω
for 10V inputs
60k
Ω
for 32.768V inputs
250
Ω
for 20mA inputs
Converter type
16 bit successive approximation
Accuracy
±0.1% of full scale at 25
o
C (77ºF)
±0.2% over temperature range
Type
single ended
Calibration
Calibration constants stored in on board
microcontroller EEPROM.
Normal mode rejection
27 dB at 60 Hz.
Over-scale Input Capacity
(without damage)
10V/20mA inputs clamped at 12V.
Transient: 2.5kV surge withstand capability as per
ANSI/IEEE C37.90.1-1989
Isolation
Analog common side connected to Chassis Ground.
Response Time
100ms typical for 10% to 90% signal change
16.9 Analog
Outputs
Output Points
2 (when optional 5305 analog outputs installed)
Output Signal
Range
0-20mA
Maximum Load
Resistance
925
Ω
with 24Vdc input voltage or when internal 24V power
supply is on.
375
Ω
with 12Vdc input voltage
250
Ω
with input voltage at power supply turnoff
Output Type
Single ended regulation on positive side with common
negative return
Isolation
Analog common side connected to Chassis Ground.
Resolution
12 bits
Accuracy
Specified from 0.5-20mA
±0.15% of full scale at 25
o
C (77
o
F)
±0.25% of full scale over temperature range
Noise and
Ripple
0.04% maximum
Transient
Protection
Transient: 2.5kV surge withstand capability as per
ANSI/IEEE C37.90.1-1989
Response Time
0.5ms to 2ms for 10% to 90% signal change
Power
Requirements
24V boost power supply off: Vin X output current.
24V boost power supply on: 27 X output current.
SCADAPack 350 Hardware Manual
February 14, 2007
60
