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

16 bits including 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

Conversion error of the analog values caused by non-linearity, adjustment error at factory and resolution within the normal range

Typ.

0.1 % of full-scale (voltage)

Depending on thermocouple, see table 'Accuracy of thermocouple ranges at +25 °C'⮫ “Accuracy of thermocouple ranges at 25 °C (with cold junction compensation)”

Max.

± 2 % of full scale (T-Type: ± 3 % for -240 °C ... -270 °C)

at 0 °C ... +60 °C

Relationship between input signal and hex code

⮫ “Measuring ranges”

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