WM-E8S

A compact and cost-effective modem for connecting meters, sensors into the AMI and Smart Grid infrastructure.

Our cellular modem has been designed specifically for the automatic readout of meters. It can be installed as a universal external modem and can be connected to any meter type.

With this device you can connect any kinds of meters, industrial measurement systems, sensors with a central server by creating a transparent data link between them and the HES. The device can be ordered with various cellular module types.

Read consumption data from utility meters, sensors with a single modem! You can save money by using our modem, because there is no need further for manual readout of the meter systems, measurement environments.

The modem is equipped with several interfaces to connect multiple industrial equipment through the RS232 / RS485 port, CL (current loop), DI (2 digital inputs), a secondary RS485 interface and optional Mbus port (request of ports by order).

Our device is suitable for remote readout of registers, consumption data of connected meters.

The modem is configurable by our WM-E Term^® software.

Main features

Wireless module options:
- 4G LTE Cat.1 / 450MHz with 2G “fallback”
- LTE Cat.M / Cat.NB / 450MHz with 2G “fallback”
AC or DC power supply
Physical interfaces:
- RJ45: RS232 and RS485 (4-wire)
- Terminal block:
  - Secondary RS485 port (2-wire) -optional
  - CL (current loop)
  - DI (2 digital inputs)
  - Mbus master for max. 4 slaves (optional)
Compatible with any meter
Surge protection (up to 4kV)
Tamper switch for detecting the absence of the cover
Supercapacitor option (for power outage notification)
Enclosure/Casing: IP52 plastic (according to DIN 43861 part 2), sealable
Built-in 35mm DIN-rail mount
Embedded, realtime operation system
Transparent communication
Remote & safe firmware updates
Configuration: WM-E Term software; optionally by Device Manager

Application

Design and outfit

IP52 plastic enclosure, sealable port cover / DIN-rail mountable
RJ45 connector: RS232 and RS485 (4-wire) connection
Terminal block:
- Secondary RS485 port (2-wire) – order option
- CL (current loop – IEC1107, Mode C)
- DI (2 logical inputs)
- Mbus for max. 4 slaves (order option)
AC or DC power supply
External antenna connector (SMA or FAKRA, 50 Ohm) – order option

Compatibility

Universal external modem, compatible with any meter type

Operation

Transparent communication
Immediate alarm notification (power loss, input changes)

Accessories (order options)

RJ45 connection cable (RS232, RS485)
RS232-USB adapter for configuration
SMA antenna (50 Ohm)
WM-E Term^® configuration software (mass fw updates, actualization of settings)

Technical data

WM-E8S Modem with RS232/RS485 port, CL (Current Loop) interface, DI (2 digital inputs)

WM-E8S Modem with RS232/RS485 port, Alternative RS485 port, CL (Current Loop) interface, DI (2 digital inputs)

WM-E8S Modem with RS232/RS485 port, MBus port, CL (Current Loop) interface, DI (2 digital inputs)

Datasheet – WM-E8S Modem with RS232/RS485 port / CL (Current Loop) interface / DI (2 digital inputs)

Datasheet – WM-E8S Modem with RS232/RS485 port / Alternative RS485 port / CL (Current Loop) interface / DI (2 digital inputs)

Datasheet – WM-E8S Modem with RS232/RS485 port / MBus port (for max. 4 slaves) / CL (Current Loop) interface / DI (2 digital inputs)

WM-E8S User Manual

WM-E8S Quick Reference Guide

WM-E Term User Manual

WM-E Term Appendix

WM-E Term configuration tool

Factory configuration sample file for WM-E Term (compressed CFG file)