YWP-AH 3BSC980004R680 | DTDX741A 61430001-UP ABB ANALONG INPUT

Each analog output channel is monitored on the block. This readback function serves two
purposes:
■ Provides high accuracy (0.1 percent) by using a software compensation algorithm in combination with the analog output readback value.
■ The integrity of the hardware and field wiring is constantly monitored by way of checking
the readback value.
The block also reports the readback values to the controller. It automatically scales the values to
their proper engineering units before reporting them. The readback values are converted to the
proper engineering units based on engineering unit high and low value specifications.
The AIN block interfaces various analog inputs: Current, voltage, thermocouple, and RTD. An
AIN block that supports thermocouple inputs includes cold junction compensation for the TC
inputs and can detect open thermocouples. The AIN block supports redundant I/O electronics.
An AIN block can be ordered with either a screw terminal (S type) or cable/clamp terminal (Ctype) base.