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Panel Meters - Counters - Timers - Transmitters, 4-20 mA & Modbus - Ethernet - USB - RS485 - RS232

Communication Interfaces, 2nd Generation

With Data Caching for High-Speed Communications

High-speed Ethernet board with USB

High-speed Ethernet & USB Board, P/N LNET1

Connects meter to an Ethernet LAN at 10 or 100 Mbits/sec. Has USB port for programming or data transfer at 38400 bits/sec. Stores data in cache memory for retrieval every 2 ms via Ethernet or 10 ms via USB. Able to transmit 60 updated analog readings per sec. This is a faster replacement for the Gen 1 LNET board. Available in Spring 2023.
High-speed Ethernet board with RS485

High-speed Ethernet & RS485 Board, P/N LNET1485

Same Ethernet capabilities as LNET1, but with an RS485 port in lieu of USB. The RS485 port can be used for programming, for data transfer at up to 115 kbits/sec, and as an Ethernet-to-RS485 gateway to an RS485 bus with up to 31 meters or transmitters. This is a faster replacement for the Gen 1 LNET485 board.
WiFi Board with Built-in Antenna and USB

WiFi Board with Built-in Antenna & USB, P/N LWIFI

Allows host meter to transmit data wirelessly to a PC or HMI. On-board antenna simplifies installation in a plastic enclosure. Complies with IEEE 802.11 b/g/n standard for 2.4 GHZ wireless communications at up to 72 Mbits/sec. Has USB port for meter programming or data transfer at 38400 bits/sec. Stores data in cache memory for retrieval every 2 ms via WiFi or 10 ms via USB. Able to transmit 60 updated analog readings per sec.
WiFi Board with External Antenna and USB

WiFi Board with External Antenna & USB, P/N LWIFIX

Same capabilities as LWIFI, but with an external 5 dBi antenna and a 30" antenna cable. Use of an external antenna allows meter installation inside a metal cabinet and increases range.

WiFi Board with External Antenna, USB & RS485

WiFi Board with Built-in Antenna, USB & RS485, P/N LWIFI485

Same capabilities as LWIFI, but with an added RS485 port. That port can be used for programming, for data transfer at up to 115 kbits/sec, or as a WiFi-to-RS485 gateway to an RS485 bus with up to 31 meters or transmitters.

WiFi Board with External Antenna, USB & RS485

WiFi Board with External Antenna, USB & RS485, P/N LWIFIX485

Same capabilities as LWIFIX, but with an added RS485 port. That port can be used for programming, for data transfer at up to 115 kbits/sec, or as a Wifi-to-RS485 gateway to an RS485 bus with up to 31 meters or transmitters.

Communication Interfaces, 1st Generation

Without Data Caching for Communications at 9600 Baud

RS232 Board with RJ11 Connector

RS232 Board with RJ11 Connector, P/N L232

Used for point-to-point communications at 9600 baud. RTS line can be set high momentarily for single readings. Supports Modbus RTU and Custom ASCII protocols. Can stream analog readings in continuous mode at up to 60 readings/sec using the Custom ASCII protocol.
RS485 Board with Dual RJ11 Connectors

RS485 Board with Dual RJ11 Connectors, P/N L485

Dual RJ11 connectors allow daisy chaining where up to 31 meters are addressed in multipoint mode on the same RS485 line using Laurel's RS485 gateway boards and CBL03 RS485 data cables. Recommended for new designs. Supports the Modbus RTU and Custom ASCII protocols, which both offer an addressable command mode.
RS485 Board with Dual RJ45 Connectors

RS485 Board with Dual RJ45 Connectors, P/N LMOD

Equivalent to board P/N L485 above, but uses RJ45 connectors instead of RJ11 connectors. Not recommended for new designs, but readily available from Laurel. P/N L485 provides more supporting cables and hence is easier to use.
USB Interface Board

USB Interface Board, P/N LUSB

This board is the easiest way to connect a Laureate meter or counter to the USB port of a PC or HMI. Uses a standard USB cable with Type A and B connectors. Supports the Modbus RTU and Custom ASCII protocols in point-to-point mode. Using Custom ASCII, can stream analog readings at 60 readings/sec.
USB-to-RS485 Gateway Board

USB-to-RS485 Gateway Board, P/N LUSB485

Connects to the USB port of a PC with a standard USB cable with Type A and B connectors. Also provides an RJ11 connector to for multipoint communications at 9600 baud to an RS485 bus with up to 31 Laureate instruments. The host meter and remote meters are addressed using the Modbus RTU or Custom ASCII protocols.
Ethernet Board

Ethernet Board, P/N LNET

Ethernet port allows Laureate meters or counters to be connected to the same LAN as a PC or HMI, or to be connected to a WAN via the Internet. Works with Modbus TCP protocol. The Ethernet node and its host instrument are automatically discovered by Instrument Setup (IS) software.
Ethernet-to-RS485 Gateway Board

Ethernet-to-RS485 Gateway Board, P/N LNET485

Same Ethernet capabilities as LNET, but with the addition of RS485. This board is designed as an Ethernet-to-RS485 gateway to connect an Ethernet line to an RS485 bus with up to 31 adressable meters or transmitters. All instruments are discovered by Instrument Setup (IS) software.
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