The 2MLL-EFMF is a Fast Ethernet (FEnet) communication module for the Honeywell MasterLogic-200 programmable logic controller series. This module enables high-speed network integration between PLCs, higher-level computer systems, and peer controllers on industrial Ethernet networks. Specifically, it uses a fiber optic physical layer to extend communication distance well beyond standard copper limitations.
Engineers choose this module when standard twisted-pair Ethernet cannot cover the required distance or when electrical isolation is critical. The 2MLL-EFMF provides a 100 Mbps baseband transmission over multimode fiber cable with an SC-type connector. Furthermore, it supports a maximum transmission distance of 2 km between a switch and a node, making it suitable for large plant floors or remote control cabinets.
The module operates on the IEEE 802.3U Ethernet standard and supports both TCP-IP and UDP-IP protocols. Network access uses the CSMA/CD method for collision detection and management. For security and network management, a software firewall is configurable through the SoftMaster-NM software, allowing IP address settings and public network access configuration.
Key optical and network parameters include:
Physical Layer: 100Base-Fx (Fiber-Optic)
Media: 62.5/125 µm multimode fiber, SC connector
Transmission Speed: 100 Mbps
Transmission Distance: Up to 2 km (switch/node)
Max Nodes: 64 nodes per network
Current Consumption: 630 mA
Additionally, the module supports multiple industrial protocols for flexible integration. It provides HSL (Peer-to-Peer High Speed Link) for direct communication with other MasterLogic PLCs, with send/receive blocks of 200 words and up to 128 blocks. For Experion system integration, it uses MLDP (MasterLogic Dedicated Protocol). Meanwhile, it functions as a Modbus TCP slave and a P2P master for user-defined protocols.
The 2MLL-EFMF is a plug-in module designed for mounting within the MasterLogic-200 rack system. It features a compact design with a weight of approximately 120 g, minimizing mechanical stress on the backplane. The front panel includes a comprehensive set of diagnostic LEDs: RUN, I/F, HS, P2P, PADT, PC, ERR, TX, RX, and 10/100 indicators. These lights provide immediate visual feedback on power status, network activity, and error conditions.
For environmental tolerance, the module typically operates within a temperature range suitable for industrial control cabinets. Network diagnostics are built into the software and hardware ecosystem, including Auto-scan, Ping Test, Frame Monitor, and Link Monitor functions. Therefore, maintenance personnel can troubleshoot fiber link integrity and data flow without additional specialized test equipment.
First, ensure the MasterLogic-200 rack is powered down before inserting the 2MLL-EFMF module into an available communication slot. Next, slide the module firmly into the backplane connector until it seats properly. Then, connect the multimode fiber optic cable with the SC connector to the module’s port, ensuring the TX and RX strands are correctly crossed (TX to RX on the opposite end).
After physical installation, apply power to the rack. Configuration is performed using the SoftMaster-NM software. Specifically, users must set the IP address, subnet mask, and gateway within the software environment. If the network uses a DHCP server or requires public network access, configure the DNS and gateway settings accordingly. Finally, verify link status using the front-panel LEDs and run a Ping Test through the diagnostic software to confirm connectivity.
1x Honeywell 2MLL-EFMF Fast Ethernet Fiber Module
1x Anti-static protective bag
1x Individual cardboard box with shock-absorbing foam
Q1: What type of fiber cable does the 2MLL-EFMF require?
A1: This module requires 62.5/125 µm multimode fiber optic cable with an SC-type connector. It does not support single-mode fiber.
Q2: Can I use this module for long-distance communication between buildings?
A2: Yes, the 2MLL-EFMF supports transmission distances of up to 2 km over multimode fiber, which is suitable for connecting separate buildings or distant control rooms within a facility.
Q3: Does this module support Modbus TCP?
A3: Yes, it supports Modbus TCP slave protocol as well as P2P master communication for user-defined protocols. This allows integration with third-party devices and SCADA systems.
Q4: What software is used to configure the 2MLL-EFMF?
A4: Configuration is performed via SoftMaster-NM software. This tool allows you to set IP addresses, configure firewall rules, and run network diagnostics.
Q5: How is this product shipped?
A5: We ship via Fedex, UPS, and DHL. Each module is packed in anti-static packaging and a protective box to ensure safe transit.
| Brand Name | |
| Model No. | 2MLL-EFMF |
| Product Type | Communication Module |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
