General
Analog input signals	0–10 V, 0/4–20 mA
Ethernet ports	2
Air humidity	5–95 %
Peer-to-peer communication
ioSearch utility

The Moxa ioLogik E1240 is a remote Ethernet I/O device from the ioLogik E1200 series, designed for decentralized data acquisition and control in industrial applications. It connects sensors and actuators via Ethernet with IT and OT systems, enabling communication over multiple common protocols simultaneously. The device is particularly suitable for installations requiring flexible, scalable, and reliable networking, such as in manufacturing automation, power supply, or process industries. The E1240 features eight analog inputs designed for measurement signals in the range of 0–10 V and 0/4–20 mA, offering a resolution of 16 bits. These inputs enable precise acquisition of physical quantities such as pressure, temperature, or flow rate. The integrated Ethernet ports support Daisy-Chain networking, allowing multiple devices to be connected over a common network without requiring additional switches. Communication is supported via Modbus TCP, EtherNet/IP, Moxa AOPC, RESTful API, SNMP v1/v2c, and the MXIO library, making the E1240 suitable for use in both classic SCADA systems and modern IIoT environments.

Applications

The ioLogik E1240 is designed for use in harsh industrial environments, particularly in installations requiring high reliability and operational safety. Certification to ATEX Zone 2 and Class I Division 2 (except for models E1213/E1213-T) makes the device suitable for locations with increased explosion risk, provided specific restrictions are observed. The operating temperature range for standard models is -10 to 60 °C, and for T models, -40 to 75 °C, enabling use in climatically demanding environments. The storage temperature is -40 to 85 °C, and the relative humidity is 5 to 95 %, non-condensing. The devices can be mounted on a DIN rail or on the wall, allowing flexible installation in enclosures or on machines.

Functions and Features in Detail

The device features a user-friendly web interface accessible via a standard web browser, as well as the ioSearch utility, which enables mass configuration of multiple devices. The Modbus TCP slave address can be user-defined, simplifying integration into existing networks. Peer-to-peer communication allows multiple ioLogik devices to communicate directly with each other without requiring a central control device. Active push messages can be sent via the MX-AOPC UA server in case of events, supporting reactive control and monitoring. The MXIO library for Windows and Linux enables integration into custom software applications.

Technology Explained Simply

The integrated 10/100BaseT(X) Ethernet ports enable data transmission at up to 100 Mbit/s. The Daisy-Chain function reduces the number of required network cables and switches, simplifying installation and reducing costs. The isolation of 3 kVDC / 2 kVrms protects internal circuits from electrical interference and voltage surges. Power supply is via 12–36 VDC, with power consumption ranging from 110 to 200 mA at 24 VDC depending on the model. Dimensions are 27.8 x 124 x 84 mm, and the device weighs 200 g. Certifications to UL 508, EN 61000, FCC, RoHS, and WEEE confirm compliance with international safety and environmental standards.

Compatibility and Accessories

The ioLogik E1240 is compatible with various I/O configurations within the E1200 series, with the specific number of channels varying per model. The integrated protocols enable connection to SCADA systems, PLCs, operator panels, and IT infrastructures. The RESTful API supports integration into IIoT platforms. The MXIO library for Windows and Linux allows development of custom applications for control and visualization.

Mounting and Installation

Mounting is either on a DIN rail or on the wall. The delivery includes multiple terminal blocks: one 8-pin (3.81 mm), one 12-pin (3.81 mm), and one 3-pin (5.00 mm), used for connecting sensors and actuators. The quick start guide and warranty card are also included in the delivery. Installation requires no special tools, and configuration can be performed via web browser or ioSearch.

Operational Advantages

The E1240 offers high flexibility through support for multiple protocols and the ability to network decentralised. The precise analog input acquisition with 16-bit resolution ensures reliable measurement values. The robust design and certification for explosive environments extend the range of applications. Simple configuration and maintenance via web browser or ioSearch reduce maintenance effort. The 5-year warranty (except for E1214, where 2 years applies) underscores the reliability of the device.