IE2042 by Beckhoff
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The IE2042 is a digital output extension box produced by Beckhoff for the IE Extension Box Units series. The device offers eight switching channels that distribute field power directly on the machine, removing the need for cabinet-mounted terminal blocks in compact automation cells. By housing solid-state drivers and M12 signal connectors in a sealed enclosure, the unit supplies remote actuators while leaving logic processing to the central controller. This arrangement supports decentralized installation near valves, contactors, indicator lamps, and other electrically controlled field devices.
Each channel operates from a nominal supply of 24 VDC, and the module provides 8 outputs in the process image as eight output bits for cyclic access. The output stages deliver up to 2.0 A per channel, while the internal power distribution supports a combined maximum of 12 A across all outputs. The outputs are organized into three load groups, with a collective limit of 4 A per group to prevent localized trace overheating. Typical current consumption is 50 mA per channel, and the drivers can energize resistive, inductive, or lamp loads without derating. Short-circuit current is limited to a typical value of 4.0 A, while reverse-polarity diodes protect the electronics if the supply leads are accidentally reversed.
The wiring system uses screw-in M12 sockets for signal routing and two four-pin M8 connectors for the power feed, supporting direct field installation without separate terminal blocks. The module provides control/fieldbus isolation, and each output is individually short-circuit-proof so unaffected channels can continue operating after a channel fault. A dedicated sensor supply delivers up to 0.5 A per channel, and the same limit applies to auxiliary devices connected to that rail. An LED signal-state indication provides visual feedback for each channel. Because the module switches only digital outputs, active and inactive channel states remain easy to identify during system checks.
Technical Specifications
Cable Length
Not specified (M12 connector present)
Connection Type
M12 Connector
Control/fieldbus Isolation
Yes
Downstream Connection
None
Housing Material
Stainless Steel
Load Circuit Count
3
Load Circuits
3
Load Current Consumption
50 mA/Channel Typical
Load Group Limit
4 A
Load Type
Ohmic, Inductive, Lamp Load
Load Types
Ohmic, Inductive, Lamp Load
Max Output Current
2.0 A/Channel
Max Total Current
12 A
Mounting Type
Flush
Nominal Voltage
24 VDC
Number Of Outputs
8
Operating Temperature
-25°C to +70°C
Output Connection
M12 Screw-In
Output Current
2.0 A Per Channel
Output Protection
Individually Short-Circuit Proof
Output Type
Digital Output
Power Feed
2 x M8 Connector, 4-Pin
Process Image
8 Output Bits
Protection Class
IP67
Reverse Polarity Protection
Yes
Reverse Voltage Protection
Yes
Sensing Distance
4 mm
Sensor Supply
0.5 A/Channel Max
Sensor Supply Limit
0.5 A Per Channel
Short Circuit Protection
Yes
Short-circuit Current
4.0 A Typical
Signal Connection
Screw-In M12 Connectors
Signal State Indication
LED
Supply Voltage
10...30 V DC
Switching Element Function
Normally Open (NO)
Switching Frequency
2 kHz
Total Output Current
12 A
Type
Inductive Proximity Sensor
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1620 Old Apex Road, Cary, NC 27513, USA
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