2.1
Brief description
The analog input module 4-channel is equipped with four universal analog inputs that are elec-
trically isolated from each other for thermocouples, RTD temperature probes, resistance trans-
mitters, resistance/potentiometers, or standard signals (current or voltage) as well as one
digital input (DC 0/24 V). The digitized input values/states are available in the system for further
processing.
LEDs are used to indicate applied voltage supply, the module operating status, as well as the
logical status of the digital input.
A setup program or the multifunction panel 840 can be used to comfortably configure the ana-
log input module.
For service work, the module insert can be easily pulled out of the case at the front. The case
including the bus PCB remains mounted on the DIN rail.
2.2
Block diagram
4 universal analog inputs
electrically isolated
1 digital input
(DC 0/24 V)
Voltage supply
2 Description
System bus
15