Redundant Power Supply Module GE Fanuc IC693ALG223 PLC Module INPUT ANALOG 16 PT CURRENT

 

 

 

Number of Channels 1 to 16 selectable; single ended

Input Current Ranges 0 to 20 mA, 4 to 20 mA and 4 to 20 mA Enhanced (selectable per channel)

Calibration

Factory calibrated to:

4 µA per count on 4 to 20 mA range

5 µA per count on 0 to 20 mA and 4 to 20 mA Enhanced range

Update Rate 13 msec (all 16 channels)

Resolution at 4-20 mA 4 µA (4 µA/bit)

Resolution at 0-20 mA 5 µA (5 µA/bit)

Resolution at 4-20 mA Enhanced 5 µA (5 µA/bit)

Absolute Accuracy

± 0.5% of full scale over specified operating temperature range

Linearity

< 1 LSB from 4 to 20 mA (4 to 20 mA range) < 1 LSB from 100 µA to 20 mA (0 to 20 mA and 4 to 20 mA Enhanced ranges)

Isolation 1500 volts between field side and logic side

Common Mode Voltage 0 volts (single-ended channels)

Cross-Channel Rejection> 80 db from DC to 1 kHz

Cross-Channel Rejection 80 db from DC to 1 kHz Input Impedance

Input Impedance 250 ohms

Input Low Pass Filter Response 19 Hz

External Supply Voltage Range 20 to 30 VDC

External Supply Voltage Ripple 10%

 

 

Analog Current Input – 16 Channel

IC693ALG223

The 16-Channel Analog Current Input module provides up to 16 single-ended input channels, each

capable of converting an analog input signal to a digital value for use as required by your

application. This module provides three input ranges:

4 to 20 mA

0 to 20 mA

4 to 20 mA Enhanced

 

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Current Ranges

The default range is 4 to 20 mA with user data scaled so that 4 mA corresponds to a count of 0 and 20 mA corresponds to a count of 32000. The other ranges are selected by changing the configuration parameters using the IC641 configurator software or the Hand-Held Programmer. The range can be configured so that the input range is 0 to 20 mA with user data scaled so that 0 mA corresponds to a count of 0 and 20 mA corresponds to a count of 32000. Full 12-bit resolution is available over the 4 to 20 and 0 to 20 mA ranges.

 

A 4 to 20 mA Enhanced range can also be selected. When this range is selected, 0 mA corresponds to a count of –8000, 4 mA corresponds to a count of 0 (zero) and 20 mA corresponds to a count of +32000. The Enhanced range uses the same hardware as the 0 to 20 mA range but automatically provides 4 to 20 mA range scaling with the exception that negative digital values are provided to the user for input current levels between 4 mA and 0 mA. This gives you the capability of selecting a low alarm limit that detects when the input current falls from 4 mA to 0 mA, which provides for open-wire fault detection in 4 to 20 mA applications. High and Low alarm limits are available on all ranges. Ranges can be configured on a per channel basis. The module also reports module status and user-side supply status to the CPU.

 

Power Requirements and LEDs

This module consumes 120 mA from the 5V bus on the PLC backplane and also requires 65 mA

plus current loop current(s) from a user supplied +24V supply (see Table 3-13, Specifications).

There are two green LED indicators on the module which provide module and user supply

status. The top LED, MODULE OK 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 diagnostics or encountered code execution error.

The bottom LED, User Supply OK, indicates that the user provided 24V supply is within

specifications, thereby enabling the analog side of the module to work properly.

 

 

 

Location in System

This module can be installed in any I/O slot of a 5 or 10-slot baseplate in a Series 90-30 PLC

system

 

 

 

References Used

The number of 16-Channel Analog Current Input modules which may be installed in a system

depends on the amount of %AI and %I references available. Each module uses 1 to 16 %AI

references (depending on the number of channels enabled) and from 8 to 40 %I (depending on

alarm status configuration) references.

The number of 16-Channel Analog Current Input modules which may be installed in a system

depends on the amount of %AI and %I references available. Each module uses 1 to 16 %AI

references (depending on the number of channels enabled) and from 8 to 40 %I (depending on

alarm status configuration) references.

The available %AI references are: 64 in a Model 311, Model 313, and Model 323 system, 128

in a Model 331 system, 1024 in a Model 340 and 341 system, and 2048 in a Model 351 and

Model 352 system.

 

 

The maximum number of 16-Channel Analog Current Input modules which may be installed in a

system are:

4 in a Model 311, Model 313, and Model 323 system

8 in a Model 331 system

12 in a Model 340 and Model 341 system

51 in a Model 351 and Model 352 system

When planning the module configuration for your appl

When planning the module configuration for your application you must also consider the load

capacity of the installed power supply and the total load requirements of all modules that are

installed in the baseplate.

Refer to the Series 90-30 Programmable Controller Installation Manual, GFK-0356 for details on

power supplies and module load requirements.