IC694ALG222 The 16–Channel Analog Voltage Input

Description

The 16–Channel Analog Voltage Input module, IC694ALG222,
provides 16 single-ended or eight differential input channels.
Each channel can be configured using the configuration software for
either of two input ranges:
▪ 0 to 10 V (unipolar), default
▪ -10 to +10 V (bipolar)
High and Low alarm limits can be configured for both ranges.
This module can be installed in any I/O slot of an RX3i system.
Isolated +24 VDC Power
If the module is located in an RX3i Universal Backplane, an external
source of Isolated +24 VDC is required to provide power for the
module. The external source must be connected via the TB1
connector on the left side of the backplane.
If this module is located in an Expansion Backplane, the backplane’s
power supply provides the Isolated +24 VDC for the module.
LEDs
The MODULE OK LED provides module status information on
powerup:
▪ ON: status is OK, module configured
▪ OFF: no backplane power or software not running (watchdog
timer timed out)
▪ Continuous rapid flashing: configuration data not received
from CPU
▪ Slow flashes, then OFF: failed power–up diagnostics or
encountered code execution error
The Module P/S LED indicates that the module’s internallygenerated +5 VDC supply is above a minimum designated level.

IC694ALG222