Technical Data of the Analog Inputs

Parameter		Value
Number of channels per module		4 configurable thermocouple (TC) inputs
Distribution of channels into groups		1 (4 channels per group)
Resolution
	Temperature	0.1 °C
	Voltage	15 bits plus sign
Connection of the signals I0+ to I3+		Terminals 1, 3, 5 and 7
Connection of the signals I0- to I3-		Terminals 2, 4, 6 and 8
Input type		Floating thermocouple
Galvanic isolation		Against internal power supply and other modules
Common mode rejection		> 120 dB at 120 V AC
Indication of the input signals		No
Module update time		All channels: < 1.6 s
Channel input resistance		On request
Input filter attenuation		-3 dB at 15 kHz
Cold junction error		± 1.5 °C
Basic error		0.1 % of full-scale (voltage)
Conversion error of the analog values caused by non-linearity, adjustment error at factory and resolution within the normal range		Typ.	Depending on thermocouple, see table below at 25 °C
		Max.	± 2 % of full scale (T-Type: ± 3 % for -240… -270 °C) at 0 … 60 °C
Relationship between input signal and hex code		Table AI563 - Analog Input Module
Analog to digital conversion time		400 ms per channel
Unused inputs		Can be left open and should be configured as “unused”
Input data length		8 bytes
Overvoltage protection		Yes, up to 30 V DC
Repeatability		On request
Wire loop resistance		< 100 W
Max. cable length (conductor cross section > 0,14 mm²)
	Unshielded wire	10 m
	Shielded wire	100 m

• Accuracy of Thermocouple Ranges at 25 °C \ (with cold junction compensation)