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RX3i ALG728 Analog

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SKU 2173168  UPC 06490420533


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Common misspellings:
  • 1C695ALG728
  • IC695A1G728
  • IC695ALG72b
  • IC695ALG728

Product Description

The IC695ALG728 is an 8-Channel, Non-Isolated, Voltage/Current, HART, Analog Output module from the GE Fanuc RX3i Series.  This module provides 8 configurable voltage or current output channels with HART communications.  The IC695ALG728 has 2 internal HART modems.  See specifications for this unit on IC695ALG728's website page.

Technical Specifications

No. of channels: 8
Voltage Range: 0 to +10 V, -10 to +10 V
Current Range: 0-20 mA, 4-20 mA
Update Rate: 8 msec
Output Load: 850 Ohms max
Power Consumption:   375 mA @ +3.3VDC, 315 mA @ +24VDC Isolated



Technical Information


Output Ranges

Current: 0 to 20mA, 4 to 20mA Voltage: +/- 10V, 0 to 10V

Backplane Power Requirements

IC695ALG704: 320mA maximum at 3.3V IC695ALG708:330mA maximum at 3.3V

IC605ALG728 with HART enabled: 340mA  maximum at 3.3V

Power Dissipation within Module

IC695ALG704: 4.8 Watts maximum (Vuser=24V)

IC695ALG708,  IC695ALG728:  7.25 Watts maximum (Vuser=24V)

Thermal Derating

IC695ALG704: no derating.

IC695ALG708, see derating curves later in this document IC695ALG728: please refer to the RX3i System Manual, GFK-2314C or

later for derating information.

External +Power Supply

Voltage Range: 19.2V to 30V (24V nominal) Current required for ALG704: 120mA maximum Current required for ALG708:  210mA maximum

Current required for ALG728:190mA maximum


+/-10V: 15.9 bits,  0 to 10V: 14.9 bits,  0 to 20mA: 15.9 bits,

4 to 20mA : 15.6 bits

HART Communications

Version 5.0 HART protocol supported on module IC695ALG728.

Output Data Format

Configurable as floating point IEEE 32 bit or 16-bit integer in a 32-bit field

Analog Update Rate (Determined by I/O scan time, application dependent)

IC695ALG704 and ALG708: 8 milliseconds (approximate, all eight channels)

ALG728: 16mS with HART (approximate, all eight channels) 8mS without HART (approximate, all eight channels)

HART Data Scan Time (in seconds) The HART data scan can consist of up to four acquisition cycles (similar but asynchronous to the analog scan time).  Each cycle includes a specific set of channels.  Total HART scan

time depends on the number of channels enabed for HART within a specific set of channels, number of retries, enabling/disabling of slot variables, and use and configuration settings of pass-thru commands.

One HART Channel in Group

Each HART Data channel updates every 0.7 second (typical)

Two HART Channels in Group

Each HART Data channel updates every 1.9 seconds (typical)

Three HART Channels in Group

Each HART Data channel updates every 3.0 seconds (typical)

Four HART Channels in Group

Each HART Data channel updates every 4.0 seconds (typical)

Output Overvoltage Protection

Current outputs only:  -30V for 60 seconds, +30V for one hour

Calibrated Accuracy

Accurate to within 0.15% of full scale at 25°C Accurate to within 0. 25% of full scale at 60°C

In the presence of severe RF interference (IC 801-3, 10V/M), accuracy may be degraded to +/-1% FS.

Output Load Reactance

Current: 10µH maximum, Voltage: 1µF maximum

Maximmum Output Load

Current: 850 Ohms maximum at Vuser = 20V Voltage: 2 Kohms minimum

Output Gain Drift

Voltage output: 20ppm per degree C typical Current output: 35ppm per degree C typical

Output Settling Time

ALG704, ALG708: Voltage or current output: 2ms, 0 to 95% ALG728: Voltage Output:  2ms, 0 to 95%

Current output with HART: 70mS, 0 to 95% Current output without HART: 23ms, 0 to 95%

Isolation, Field to Backplane

2550VDC for one second

Maximum Compliance Voltage

Vuser  – 3V (minimum) to Vuser (maximum)



Troubleshooting IC695ALG728

Troubleshooting information is available on IC695ALG728's website page; it also includes a datasheet user-manual and a wiring diagram.


Repair your IC695ALG728

PDF Supply can repair your IC695ALG728 in 3-5 business days. And PDF Supply stands by all of its repairs with a 1 year customer satisfaction warranty.

Customer Questions and Answers

  • Question:  What is an IC695ALG728?  Answer:  The IC695ALG728 is an 8-Channel, Non-Isolated, Voltage/Current, HART, Analog Output module from the GE Fanuc RX3i Series. 
  • Question:  What does IC695ALG728 provide?  Answer:  This module provides 8 configurable voltage or current output channels with HART version 5.0 communications capability on each channel. 
  • Question:  How many HART modems does IC695ALG728 have?  Answer:  This module has 2 internal HART modems. 
  • Question:  How many channels are multiplexed with each HART modem?  Answer:  4 single-ended channels are multiplexed with each HART modem. 
  • Question:  At what output ranges can the analog channels be configured?  Answer:
    • Current: 0 to 20mA, 4 to 20mA
    • Voltage: +/- 10 V, 0 to 10 V
  • Question:  What range must the configuration be for channels that use HART communications?  Answer:  4-20mA range
  • Question:  Where must IC695ALG728 receive its 24 VDC power?  Answer:  It must receive this power from an external source.
  • Question:  What should I do if my IC695ALG728 is not working properly?  Answer:  Your IC695ALG728 may need repair

For more information on the IC695ALG728 8-Channel, Non-Isolated, Voltage/Current, HART, Analog Output Module of the GE Fanuc RX3i Series, please see the Datasheet User-Manual.

Release History



Firmware Revision

Upgrade Kit


IC695ALG704-AA IC695ALG708-AA



Initial Release




Initial Release

IC695ALG704-AB IC695ALG708-AB










IC695ALG704-BB IC695ALG708-BB



Modified the terminal block detector switch to increase the size of the switch lever. The increased size of the switch lever allows additional tolerance to assure contact with the terminal block actuator.





IC695ALG704-CB IC695ALG708-CB



Label change only. No change in functionality, performance or compatibility.















HW/FW change to address obsolescence and implement EU RoHS compliance 2011/65/EU


CA = Conformal Coated version LT = Low Temperature version


ST. LOUIS, Feb. 1, 2019 – Emerson today announced it has completed the purchase of Intelligent Platforms from General Electric.
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