Technical \ Data of the Analog Inputs

Parameter	Value
Number of channels per module	16
Distribution of channels into groups	2 groups of 8 channels each
Connections of the channels I0- to I7- Connections of the channels I0+ to I7+	Terminals 1.0 to 1.7 Terminals 2.0 to 2.7
Connections of the channels I8- to I15- Connections of the channels I8+ to I15+	Terminals 3.0 to 3.7 Terminals 4.0 to 4.7
Input type	Bipolar (not with current or Pt100/Pt1000/Ni1000)
Input data length	32 bytes
Galvanic isolation	Against internal supply and other modules
Configurability	0…10 V, -10…+10 V, 0/4…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 µs, current: 100 µs
Indication of the input signals	1 LED per channel
Conversion cycle	2 ms (for 16 inputs), with Pt/Ni… 1 s
Resolution	Range 0…10 V: 12 bits
	Range -10…+10 V: 12 bits + sign
	Range 0…20 mA: 12 bits
	Range 4…20 mA: 12 bits
Conversion error of the analog values caused by non-linearity, adjustment error at factory and resolution within the normal range	Typ.	± 0.5 % of full scale at 25°C
	Max.	± 1 % of full scale (all ranges) at 0…60 °C or EMC disturbance
Relationship between input signal and hex code	See tables Input Ranges Voltage, Current and Digital Input AI523 - Analog Input Module and Input Ranges Resistance AI523 - Analog Input Module
Unused voltage inputs	Are configured as “unused”
Unused current inputs	Have a low resistance, can be left open-circuited
Overvoltage protection	Yes