IC694ALG223 INPUT ANALOG CURRENT 16CH SINGLE

GE IC694ALG223, The 16–Channel Analog Current Input module, provides 16 single–ended inputs. Each input can be configured using the configuration software for any of three input ranges: 20 mA,0 to 20 mA, or 4 to 20 mA Enhanced. High and Low alarm limits are available on all ranges. In the 4 to 20 mA Enhanced range, a low alarm limit can be set up to detect input current from 4 mA to 0 mA, providing open-wire fault detection in 4 to 20 mA applications.

Module PowerThe The 
IC694ALG223 module consumes 120 mA from the 5 VDC bus on the PLC backplane. It also requires 65 mA plus current loop (s) from a user-supplied +24 VDC supply.

LEDS
IC694ALG223 MODULE OK LED provides module status information on power-up as follows:
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 diagnostic or encountered code execution error. The User Supply LED indicates that the external 24 VDC supply is within specifications.

The User Supply LED indicates that the external 24 VDC supply is within specifications.

Reference Address for Input Data
The memory location for input data from the module. Each channel provides 16 bits of analog input data to the PLC CPU.

Reference Address for Status Data
The memory location for the module's status information starts.

Length
The number of status bits reported to the PLC. Bits 1 – 8 provide basic module diagnostics. Bits 9 – 24 contain channel 1 – 8 high alarm and low alarm status. Bits 25 – 40 contain channel 9 – 16 high alarm and low alarm status. Data formats are shown in this section.

Range
In the 4-20 mA range, input currents from 4 to 20 mA are reported to the CPU as values from 0 to 32000 units. In the 0 to 20 mA range, input currents from 0 to 20 mA are reported to the CPU as values from 0 to 3200 units. In the 4 to 20 mA enhanced range, currents from 4 to 20 mA are reported to the CPU as values from 0 to 32000 units. Currents below 4 mA are reported as negative values with 0 represented as –8000 units.

Specifications: IC694ALG223