ABB AC500 PLC - Technical Data of the Analog Inputs

Parameter Value
Counting frequency Max. 50 kHz
Used inputs See Fast Counter
Used outputs See Fast Counter
Operating modes See Operating modes
Technical Data of the Analog Inputs
Parameter Value
Number of channels per module 4
Distribution of channels into groups 1 group with 4 channels
Connection if channels AI0+ to AI3+ Terminals 3.0 to 3.3
Reference potential for AI0+ to AI3+ Terminal 3.4 (AI-) for voltage and RTD meas-
urement
Terminal 1.9, 2.9, 3.9 and 4.9 for current
measurement
Input type
Unipolar Voltage 0 V...10 V, current or Pt100/Pt1000/
Ni1000
Bipolar Voltage -10 V...+10 V
Configurability 0 V...10 V, -10 V...+10 V, 0 mA...20 mA,
4 mA...20 mA, Pt100/1000, Ni1000 (each
input can be configured individually)
Channel input resistance Voltage: > 100 kW
Current: ca. 330 W
Time constant of the input filter Voltage: 100 µ s
Current: 100 µs
Indication of the input signals 1 LED per channel (brightness depends on
the value of the analog signal)
Conversion cycle 1 ms (for 4 inputs + 2 outputs); with RTDs Pt/
Ni... 1 s
Resolution Range 0 V...10 V: 12 bits
Range -10 V...+10 V: 12 bits + sign
Range 0 mA...20 mA: 12 bits
Range 4 mA...20 mA: 12 bits
Range RTD (Pt100, PT1000, Ni1000): 0.1 °C
Conversion error of the analog values caused
by non-linearity, adjustment error at factory
and resolution within the normal range
Typ. 0.5 %, max. 1 %
For XC version below 0 °C and above 60 °C:
on request
Relationship between input signal and hex
code
Ä Chapter 1.5.3.1.2.9.1 “Input Ranges
Voltage, Current and Digital Input”
on page 625
Ä Chapter 1.5.3.1.2.9.2 “Input Range
Resistor” on page 626
Device Specifications
I/O Modules > Digital/Analog I/O Modules
2019/04/173ADR010121, 13, en_US632