Cewe Prometer 100 User Manual

BGX501-943-R01 Prometer 100 User Manual Page 41 of 72
7.5.2.1 Output states
An active output means a closed relay when the output is not inverted. When the output is inverted, the active
relay is open. The Prometer 100 outputs are of the solid-state type and when the meter is turned off, they are
open.
7.5.2.2 Meter variants
Inputs/Outputs
Prometer 100-R
Prometer 100-W
4 configurable input/output
●
●
8 outputs and 4 configurable input/output
●
7 outputs and 4 configurable input/output
●
7.6 Communications and Security
Prometer 100 meters have optical port, RS232, RS485 and Ethernet ports for communication.
Note:
The Prometer 100-W supports attachment of field replaceable communication modules for RS232 and RS485.
These modules are optional and can be procured separately.
Communication
channel
Default / Max
supported Baud
rate
Supported protocol Usage
Optical port- IEC1107
300 / 19200 bps DLMS
Local Meter Reading
RS485 (RJ-45 in & out) 9600 / 57600 bps DLMS, Modbus RTU
Meter reading, online
monitoring, third party
interface
RS232 9600 / 57600 bps DLMS
Remote meter reading
through external modem
Ethernet port 10 / 100 Mbps
Modbus TCP (port no.: 502)
DLMS TCP (port no.: 4059)
Meter reading, online
monitoring, third party
interface
Note: For more information on protocol support, see the document ‘Prometer 100 meter reading’.
7.6.1 Communication speed
The meter’s optical port always starts with a baud rate of 300 bps, regardless of what is configured, before
shifting over to the specified communication speed. This means that software (for example, M-Cubed) that
communicates with the meter via the optical port does not need to know the speed that the meter’s optical port
is set to. RS232 and RS485 communication ports differ in this respect. They start at the specified baud rate from
the beginning, which means that connected software must be aware of the speed to be able to communicate.
RS232 communication port can be set at a speed of between 9600 bps and 57600 bps, and RS485
communication port can be set at a speed of between 9600 bps and 57600 bps. The optical port can be set at a
speed of between 300 and 19200 bps.
7.6.2 Security
The meter has five authorisation levels that can limit access to the meter during communication via any of the
meter’s communication ports. Authorisation levels are password-protected.
Authorisation levels
1
Provides access to reading.
2 Provides access to everything in level 1 plus access to set the clock and
finish historical periods (also resets maximum demand values).

Cewe Prometer 100 Specifications

General

Brand	Cewe
Model	Prometer 100
Category	Measuring Instruments
Language	English