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SKU 2170411  UPC 0799705792906

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Common misspellings:
  • 1C693ALG442
  • IC693A1G442
  • IC693ALGA42
  • IC693ALG4A2
  • IC693ALG442

Technical Specifications for IC693ALG442

ManufacturerGE Fanuc
SeriesSeries 90-30
Part NumberIC693ALG442
Product TypeCombination Module
Number of Channels6
Number of Outputs2
Number of Inputs4
Number of Connector Block Terminals20
Nominal Voltage24 Volts DC
Output Current0 to 20 milliamps, 4 to 20 milliamps

Product Description

The GE Fanuc IC693ALG442 is an analog I/O module of GE Fanuc series 90-30 PLC systems. It has four input and two output channels. Power supply for this module is the typical +5VDC supply from the CPU with a maximum 95mA current and an external supply combined. The external power supply for this module has a typical value of 24 VDC but can vary from 20 to 30 VDC. Warning: Connecting this module to a baseplate while power is on is dangerous and may damage the components of the system. This module must be installed in a metal enclosure with external wiring. 

There are six types of I/O modules for series 90-30 of GE Fanuc PLCs. These are either Discrete or Analog modules. Generally, Analog modules can be of Analog input type only, Analog output only, or have a combination of input and output channels. This type of module is combined input/output. Data within %AI and %AQ record analog values that are used by the PLC. The number of modules that can be installed on a system depends on %AI, %AQ, and %I references available. These references are different on each CPU type. The GE Fanuc IC693ALG442 analog I/O module provides the PLC with a range of status information, including health of the module, detection of an open wire or overload in output mode, very low or high status of input channels, and status of the module’s supplied power.

Technical Specifications

No. of channels: Output: 2 single-ended; Input: 4 differential
VoltageOutput Range: 0 to +10V (unipolar) or -10 to +10V (bipolar)
Current Output Range: 0 to 20 mA or 4 to 20 mA
Update Rate:  4 msec (all channels)
Max Output Load: 5 mA
Power Consumption: 95 mA from +5 V bus or 129 mA from +24 V  user supply



The IC693ALG442 module is a GE Fanuc Series 90-30 combination module that comes with both input and output channels. Additionally, the IC693ALG442 combination module supports both current and voltage power for its inputs and outputs. The inputs and outputs on this combination module only need about 4 milliseconds to update. The IC693ALG442 combination module’s nominal voltage rating is 24 Volts DC and it can operate in a voltage range between 20 and 30 Volts DC. It supports 2 output current ranges which are 0 to 20 milliamps and 4 to 20 milliamps. Its channels include 2 single-ended output channels and 4 differential input channels for a total of 6 input and output channels. At 25 degrees Celsius, the accuracy rating of the IC693ALG442 combination I/O module is 0.25%.


The GE Fanuc Series 90-30 IC693ALG442 6-channel combination I/O module draws its power from the CPU in the system that it is part of and from an external power supply. It is meant to be mounted on a baseplate, but it should never be mounted on the baseplate while it is still connected to any power source. For protection against common industrial hazards, the IC693ALG442 combination module should be installed in a metal enclosure with the correct environmental protection rating for its environment, and its wiring should all be external. The field wiring connections are easy to make on this module because it has a connector block with 20 terminals. The IC693ALG442 6-channel combination I/O module supports jumpers, ladder logic, and handheld programming devices.

Technical Information


Power Requirements

External Supply Voltage Range

20 to 30 VDC (24 VDC typical)

Power Supply Rejection Ratio

Current:  5 μA/V (typical), 10 μA/V (maximum) Voltage: 25 mV/V (typical), 50 mV/V (maximum)

(Measured by varying VUSER  from 24 VDC to 30 VDC)

Voltage Ripple


Power Consumption

95 mA from internal +5 VDC Supply, 150 mA from external +24 VDC supply

Update Rate

Update Rate: 3 ms

Isolation, Field to Backplane (optical) and to Frame Ground

250 VAC continuous; 1500 VAC for 1 minute

Analog Outputs

Two, Single–Ended

Analog Current Output


Output Ranges

0 to 20 mA, 4 to 20 mA


0 to 20 mA: 0.6 μA (1 LSB = 0.6 μA)

4 to 20 mA:  0.5 μA (1 LSB = 0.5 μA)

Absolute Accuracy1,5

±0.1% of full scale @ 25°C (77°F), typical

±0.25% of full scale @ 25°C (77°F), maximum

±0.5% of full scale over operating temperature range (maximum)

Maximum Compliance Voltage

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

User Load

USER = 20 V, maximum 1350Ω at VUSER = 30 V)

Output Load Capacitance

2000 pF (maximum)

Output Load Inductance

1 H (maximum)

Analog Voltage Output


Output Ranges

-10 to +10 V (bipolar), 0 to +10 V (unipolar)


–10 V to +10 V:    0.3125 mV (1 LSB = 0.3125 mV)

0 to +10 V:             0.3125 mV (1 LSB = 0.3125 mV)

Absolute Accuracy2,5

±0.25% of full scale @ 25°C (77°F), typical

±0.5% of full scale @ 25°C (77°F), maximum

±1.0% of full scale over operating temperature range (maximum)

Output Loading

5 mA (2 K Ohms minimum resistance)

Output Load Capacitance

1 μF (maximum capacitance)

Analog Inputs

Four, differential

Analog Current Input


Input Ranges

0 to 20 mA, 4 to 20 mA, 4 to 20 mA Enhanced


5 μA (1 LSB = 5 μA)

Absolute Accuracy3,

± 0.25% of full scale @25°C (77°F)

±0.5% of full scale over specified operating temperature range


<1 LSB

Common Mode Voltage

200 VDC (maximum)

Common Mode Rejection

>70 dB at DC; >70 dB at 60 Hz

Cross Channel Rejection

>70 dB from DC to 1 kHz

Input Impedance

250 Ω

Input Filter Response

38 Hz


Troubleshooting IC693ALG442

Troubleshooting information is available on IC693ALG442’s website page; it also includes a datasheet user-manual and a wiring diagram.


Repair your IC693ALG442

PDF Supply can repair your IC693ALG442 in 3-5 business days. And PDF Supply stands by all of its repairs with a 1 year customer satisfaction warranty.

RAMP Mode for IC693ALG442


IC693ALG442 - RAMP Mode

Setup an E2 COMMREQ to change the ramp mode of an output channel on ALG442. Note there is an incorrect sample code in Chapter 12 of GFK-0898F.


There are two modes for both the outputs, standard and ramp mode. The mode of each output channel is independent of the mode of the other channel. When the output is in ramp mode, there are two lower level modes - time mode and step mode.

When firing a COMMREQ to ramp the output from present output value of 16000 counts (5V) to 32000 (10V) in a total time of 10ms (put 10000 in %R102 and Hex value of 0060 in %R101).

In reference view tables, you will see the %AQ output change instantly to the final output value of 10V rather than ramping up slowly within the desired time frame of 10ms. The important thing to note here is that the ramping will take place on physical module output channel. You will not be able to see it on the software side when viewing the channel output in the reference view table. With a voltmeter to connect to CH1 on the module, you see will the ramping from the present output value to the final output value. Ramping is done in the module firmware.

Attached is a sample E2 COMMREQ program set for ramp time mode.


Using QuickPanel or PC Control with The IC694APU300/301/302,IC693DSM302 & IC693ALG442 Modules


The QuickPanel Control and PC Control products support connection to 90-30 I/O using specialized hardware and the 90/30 control I/O driver.

The driver implements access to certain 90/30 modules, including the IC694APU300/301/302, IC693DSM302 & IC693ALG442, using a data transfer mechanism called communication requests or COMMREQs. COMMREQs comprise a block of information, command & control data etc. that is passed to the module.

The implementation of COMMREQs in QuickPanel or PC Control mirrors COMMREQs used in GE IP PLCs. See GFK-0467 (90-30) or GFK-2222 (PACs) for more information on COMMREQs used in the PLCs.


From the Proficy Machine Edition 90/30 I/O driver Help on COMMREQs:


Data Description

Data Values

Data Type



16#E201(APU300 and ALG442)
16#E501(APU301, APU302 and DSM302)




The module status word returned from the module is the COMMREQ status word



Max Communication Time

Max time (ms) permitted for COMMREQ before time out error occurs



Data Length

Defined by the module (length of the data array to be transmitted or received)



COMMREQ data word

Contains the data sent to the module


For the IC694APU300/301/302,IC693DSM302 & IC693ALG442 modules, the first double word of information in the COMMREQ is an encoded command to the module.

A detail not included in the PME help is that Command is made of two parts : the upper word is the command itself while the lower word is used to either enable or disable the COMMREQ.

i.e. The value 16#E2 is used for the APU300 and ALG442, while the value 1 (one) tells the driver to send the COMREQ to the module. A value of 0 (zero) in the lower word would prevent the driver from transmitting the COMMREQ to the module.

Customer Questions and Answers

  • Question:  What is an IC693ALG442?  Answer:  The IC693ALG442 is an Analog Current/Voltage combination Input/Output that includes 4 differential input currentvoltage channels and 2 singled-ended output channels with either current loop outputs or voltage outputs.  Each channel can be individually configured for the current or voltage range required for your application.
  • Question:  What is the main power supply for IC693ALG442?  Answer:  The main power supply for IC693ALG442 Analog Input/Output of the GE 90-30 Series MUST be the user supplied single +24 VDC power source (and it requires a maximum current of 129 mA). This includes loop output power and voltage output load power.
  • Question:  What does the ramp mode operation represent?  Answer:  This mode represents a separate mode of the module's outputs.
  • Question:  What does the top LED (OK) provide?  Answer:  It provides the IC693ALG442's status information.
  •  Question:  What does the bottom LED (USOK) indicate?  Answer:  It indicates whether the user supply is present and above a minimum designated level. 
  • Question:  What is a good way to test this Analog Input/Output Voltage/Current module?  Answer:  You can use a multi-meter to test the voltage/current in IC693ALG442. Since this is an analog part, you can test at different levels for different responses. 
  • How to tell if your device is faulty (troubleshooting).  Answer:  If you cut the value in half and it still gives you the same reading as before, your device may need repair

·         For more information on the IC693ALG442 Analog Output Module of the GE 90-30 Series, please see the Datasheet Manual.



Firmware Release



IC694ALG442-CC IC693ALG442-EC


Jan. 2014

Resolves an issue that occurred when user power was cycled.

IC694ALG442-CB IC693ALG442-EB


May 2012

Resolves several rarely-occurring issues that were identified in field and factory testing. For details, see GFK-2687A.

IC694ALG442-BA IC693ALG442-DA


Sep. 2011

Adds ability to perform field upgrades in RX3i targets. Adds display of module serial number, revision and Manufacturing date code in programming software in RX3i targets.

Resolves issue with Ramp operation.

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

Common related search terms: BuyDatasheetEmersonManualPriceRepairSpecificationTroubleshootWiring


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