Data Sheet for Product

22
Smart Infrastructure
CE2N5324en
2021-03-
19
Properties
● Reading and storing measured values of the heat/cooling energy meter
● Reading and storing measured values of any metering device conforming to the M-bus
standard protocol
● Collection of measured values per e-mail, FTP, http, SMS transparent GSM or TCP
● Configurable report templates for manufacturer-specific reports on values, about the sys-
tem, etc.
● Configurable per SMS, http, or Telenet
● Updating applications, firmware and resources via GPRS remote control
NOTICE
The module must be plugged into slot 2.
M-bus
The module has a built-in M-bus master, capable of reading up to another 8 M-bus meters. If
the bus is overloaded, communication problems with the connected slaves occur.
All connected M-bus devices (slaves) must have a unique M-bus secondary address.
Power supply
The module (WZU-GPRS) is supplied complete with the required power supply module (rat-
ed voltage AC 100…240 V or AC/DC 24 V).
Communication protocols
● E-mail via SMTP with authentication mode HELO, EHLO
● Passive FTP mode with authentication and change of remote directory
● HTTP POST and GET
● GSM data transparent M-bus @ 300 and 2400 baud and GSM data console TCP Trans-
parent M-bus @300 and 2400 baud and TCP console
● SMS for configuration
● Internet time synchronization with NTP or daytime protocol
Tariff control
The following options are available for tariff control.
NOTICE
The summation of energy and volume in the standard registers is performed independently
of the tariff situation!
Threshold value tariff (tariffs T2, 3, 4, 5, 6)
Tariff registers 1, 2 and 3 can be controlled via up to 3 threshold values.
Either energy or volume can be added up in the tariff registers. The threshold values can be
derived from the flow rate (tariff T2), power (tariff T3), temperature cold side (tariff T4), the
flow temperature heat side (tariff T5), or the temperature differential (tariff T6).
Supplied energy / adjusted energy (tariff T7)
In tariff register 1, the energy calculated from the temperature heat side is totaled (and not
from the temperature differential).
The Adjusted Energy function (as of FW 5.24) adds the energy in tariff register 1 that is cal-
culated from the reference temperature and the temperature on the warm side.