User Manual
Section 5
GFK-2958L
May 2021
Detailed Description of I/O Modules
358
5.33
Analog Input Module EP-3804
Figure 198: Analog Input
Module EP-3804
Figure 199: Connection Diagram EP-3804
The analog input module EP-3804 can detect up to 4 analog thermocouple sensors or
voltages between ±15 mV and ±2V. The resolution is 16 bits per channel. Sensor type and
temperature range are set using parameterization. Mixed operation using different sensors
is possible. For each channel, an internal or external cold-junction compensation (CJC) can
be parameterized. A status LED is assigned to each channel.
The inputs are protected against voltage surges and overcurrent. Voltages that exceed ±30
V may cause the destruction of the module.
The module provides individual channel diagnosis with channel related error messages.