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October 14, 2026 BY
IN Beckhoff

Beckhoff EL3751 | EtherCAT Terminal, 1-channel analog input, multi-function, 24 bit, 10 ksps

The EL3751 analog input terminal is part of the new generation of analog

EtherCAT measurement terminals. The nominal measuring range of the

input channel can be comprehensively parameterized, both electrically

and on the software side:

• voltage measurement: ±5 mV to ±30 V (incl. ±10 V), 0…10 V, 0…5 V

• current measurement: ±20 mA, 4…20 mA, 0…20 mA, NAMUR NE43

• resistance measurement: 0…5 kΩ

• electrical resistance R in 2-/3-/4-wire connection

• RTD measurement in 2-/3-/4-wire connection

• strain gauge/load cell: ¼ bridge (350 Ω + 120 Ω), ½ bridge (±16 mV/V)

and full bridge (±32 mV/V) with integrated supply in 2-/3-/4-/5-/6-wire

connection

• potentiometer: min. 1 kΩ
October 14, 2026 BY
IN Beckhoff

Beckhoff EL3742 | EtherCAT Terminal, 2-channel analog input, current, 0…20 mA

The EL3742 analog input terminal handles signals in the

range between 0 and 20 mA. The voltage is digitized to

a resolution of 16 bits, and is transmitted, electrically

isolated, to the controller. The input channels of the

EtherCAT Terminal have differential inputs and possess

a common, internal ground potential.

The signals are oversampled with an adjustable, integer

multiple (oversampling factor: n) of the bus cycle frequency

(n microcycles per bus cycle). For each bus cycle, the

EtherCAT Terminal generates a process data block that

is collected and transferred during the next bus cycle.

The time base of the terminal can be synchronized

precisely with other EtherCAT devices via distributed

clocks. This procedure enables the temporal resolution

of the analog input signals to be increased to n times

the bus cycle time. In conjunction with the EL47xx

(analog output terminal with oversampling), responses

with equidistant time intervals, e.g. in the event of a

threshold value being exceeded, become possible.

The distributed clocks function enables several EL3742

devices to be synchronized in almost any configuration.

The maximum sampling rate per channel is 100 ksamples/s

(100.000 samples/s).
October 14, 2026 BY
IN Beckhoff

Beckhoff EL3702-0015 | EtherCAT Terminal, 2-channel analog input, voltage

The EL3702-0015 analog input terminal handles signals in the

range between -150 and +150 mV and is thus ideally suited

for the measurement of shunts and Rogowski coils with built-in

integrator. The voltage is digitized to a resolution of 16 bits,

and is transmitted, electrically isolated, to the controller.

The signals are oversampled with an adjustable, integer multiple

(oversampling factor: n) of the bus cycle time (n microcycles per

bus cycle). For each microcycle, the EtherCAT Terminal generates

a process data block that is transferred collectively during the next

bus cycle. The time base of the terminal can be synchronized

precisely with other EtherCAT devices via distributed clocks.

This procedure enables the temporal resolution of the analog input

signals to be increased to n times the bus cycle time.

In conjunction with the EL47xx (analog output terminal with

oversampling), responses with equidistant time intervals, e.g. in the

event of a threshold value being exceeded, become possible.

The distributed clocks function enables several EL3702-0015 devices

to be synchronized in almost any configuration.

The maximum sampling rate per channel is 100 ksamples/s (100.000

samples/s).
October 14, 2026 BY
IN Beckhoff

Beckhoff EL3702 | EtherCAT Terminal, 2-channel analog input

The EL3702 analog input terminal handles signals in the

range between -10 and +10 V. The voltage is digitized to

a resolution of 16 bits, and is transmitted, electrically

isolated, to the controller.

The signals are oversampled with an adjustable, integer

multiple (oversampling factor: n) of the bus cycle frequency

(n microcycles per bus cycle). For each bus cycle, the

EtherCAT Terminal generates a process data block that is

transferred collectively during the next bus cycle.

The time base of the terminal can be synchronized precisely

with other EtherCAT devices via distributed clocks. 

This procedure enables the temporal resolution of the analog

input signals to be increased to n times the bus cycle time.

In conjunction with the EL47xx (analog output terminal with

oversampling), responses with equidistant time intervals, e.g.

in the event of a threshold value being exceeded, become

possible.

The distributed clocks function enables several EL3702 devices

to be synchronized in almost any configuration. The maximum

sampling rate per channel is 100 ksamples/s (100.000 samples/s).
October 14, 2026 BY
IN CTI

CTI 2500S-27-1550 Slice I/O, RS232/485, 2DIO / 4UAI / 2AI (MATURE)

The 2500S family of Slice I/O modules expands the capability of

2500 Series® Systems to include small drops of I/O connected

over Ethernet. Slice I/O modules communicate to 2500 Series®

Processors using CAMP protocol and read/write directly to the PLC

memory or I/O image table. This allows transparent integration

into the 2500 Series® system without the requirement for any

complicated configuration step. Ethernet connection to the CPU

can be accomplished using the on-board port on 2500-Cxxx

Processors, or using a 2572 / 2572-A Ethernet module. 

Note that when using 2572 or 2572-A modules, Slice I/O can be

connected even to legacy Siemens® and Texas Instruments PLCs.

Several models of Slice I/O are available with different mixes of I/O

and with additional communications options including RS232/485

and 900MHz radio. Slice I/O modules feature Universal Analog Inputs

which allow connection of 0-5V, 0-20mA, thermocouple, and RTD

sensors. All Slice I/O modules can also be configured to communicate

over Ethernet using Modbus-TCP.

Note: This unit is designed to work on a battery so +12VDC is operating

voltage, not +24VDC.
October 14, 2026 BY
IN CTI

CTI 2500S-26-1550 Features

Features

• I/O configuration of 8DIO / 2UAI

• RJ45 Ethernet port

• RS232/485 serial port for communications with Modbus devices

• Connects to CTI and legacy Siemens® /TI CPUs over Ethernet

• Several models with differing I/O capabilities allow you to customize

the solution to your needs

• Extensive intelligent features for processing attached I/O signals:

– Totalization, filtering, forcing, inversion, runtime, and counting on

digital inputs

– Frequency out (with PWM) and synchronization on digital outputs

– Filtering, averaging, scaling and totalization on analog inputs

– Data logging and trending

• All module configuration done using a simple web browser interface

• Wide –40°C to +70°C operating temperature range
October 14, 2026 BY
IN Aerotech

Aerotech Automation1 XL2e KEY FEATURES

KEY FEATURES:

• INTEGRATES EASILY IN MULTI-AXIS SYSTEMS

with other Automation1 drives & the iSMC motion controller

• Includes STANDARD ABSOLUTE ENCODER & square-wave

encoder support

• Increases resolution of sine-wave feedback devices with

optional X65.536 ENCODER MULTIPLIER

• Supports optional DUAL-MULTIPLIED & DUAL ABSOLUTE

ENCODER FEEDBACK

• Includes PSO, the ULTIMATE IN POSITION BASED CONTROL

for industrial lasers, cameras & more

• Features SAFE TORQUE OFF (STO) functional safety

(certification pending)

• Offers optional I/O EXPANSION BOARD

The XL2e is more than a motion control device — it also includes

many process control features. Empowered with our PSO functionality,

a single-axis XL2e can track up to three encoders in real time to trigger

a process tool like an industrial laser or camera. Each XL2e can be

configured with an optional I/O expansion board that includes a

dedicated PSO output, and PSO can be used with a synchronization

input to synchronize process control with an external mode-locked

frequency input.

Two HyperWire connections make it simple to connect the XL2e with

other Automation1 drive hardware in a multi-axis configuration.

A 24-volt, one amp brake output is included. The device is CE approved,

NRTL safety certified and EU 2015/863 RoHS 3 directive certified.

The power amplifier bandwidth is software selectable.
October 14, 2026 BY
IN CTI

CTI 2500S-26-1550 Slice I/O, RS232/485, 8DIO / 2UAI

The 2500S family of Slice I/O modules expands the capability of

2500 Series® Systems to include small drops of I/O connected

over Ethernet. Slice I/O modules communicate to 2500 Series®

Processors using CAMP protocol and read/write directly to the

PLC memory or I/O image table.

This allows transparent integration into the 2500 Series® system

without the requirement for any complicated configuration step.

Ethernet connection to the CPU can be accomplished using the

on-board port on 2500-Cxxx Processors, or using a 2572 / 2572-A

Ethernet module. Note that when using 2572 or 2572-A modules,

Slice I/O can be connected even to legacy Siemens® and Texas

Instruments PLCs.

Several models of Slice I/O are available with different mixes of I/O

and with additional communications options including RS232/485

and 900MHz radio. Slice I/O modules feature Universal Analog Inputs

which allow connection of 0-5V, 0-20mA, thermocouple, and RTD

sensors. All Slice I/O modules can also be configured to communicate

over Ethernet using Modbus-TCP.

Note: This unit is designed to work on a battery so +12VDC is operating

voltage, not +24VDC.
October 14, 2026 BY
IN CTI

CTI 2500S-23-1550 Features

Features

• I/O configuration of 4DI / 4DO / 2UAI / 2AO

• RJ45 Ethernet port

• RS232/485 serial port for communications with Modbus devices

• Connects to CTI and legacy Siemens® /TI CPUs over Ethernet

• Several models with differing I/O capabilities allow you to customize

the solution to your needs

• Extensive intelligent features for processing attached I/O signals:

– Totalization, filtering, forcing, inversion, runtime, and counting on

digital inputs

– Frequency out (with PWM) and synchronization on digital outputs

– Filtering, averaging, scaling and totalization on analog inputs

– Data logging and trending

• All module configuration done using a simple web browser interface

• Wide –40°C to +70°C operating temperature range
October 14, 2026 BY
IN CTI

CTI 2500S-23-1550 Slice I/O, RS232/485, 4DI / 4DO / 2UAI / 2AO

The 2500S family of Slice I/O modules expands the capability of

2500 Series® Systems to include small drops of I/O connected

over Ethernet. Slice I/O modules communicate to 2500 Series®

Processors using CAMP protocol and read/write directly to the

PLC memory or I/O image table.

This allows transparent integration into the 2500 Series® system

without the requirement for any complicated configuration step.

 Ethernet connection to the CPU can be accomplished using the

on-board port on 2500-Cxxx Processors, or using a 2572 / 2572-A

Ethernet module. Note that when using 2572 or 2572-A modules,

Slice I/O can be connected even to legacy Siemens® and Texas

Instruments PLCs.

Several models of Slice I/O are available with different mixes of

I/O and with additional communications options including RS232

/485 and 900MHz radio. Slice I/O modules feature Universal

Analog Inputs which allow connection of 0-5V, 0-20mA,

thermocouple, and RTD sensors. All Slice I/O modules can also

be configured to communicate over Ethernet using Modbus-TCP.

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