Cl Module; M-Bus Module G4 - Landis+Gyr ULTRACOLD T550 Technical Description

Communication
9.2

CL module

9.3

M-Bus module G4

With the CL module it is possible to read out the meter by wire e.g. on the
doorstep through a point-to-point connection.
Display in LCD
Classification
Type
Baud rate
Isolation
Polarity
Voltage
Current
Voltage drop
Interface description
The M-Bus module enables the meter to communicate with an M-Bus center
in order to transmit measured values.
Standard
Protocol
Electrical isolation
from the meter
from the pulse inputs
Connection
Strip-back length
Connection capacity
rigid or flexible
flexible with wire end ferrule
Polarity
Voltage
Current consumption
Addressing
Baud rate
Interface description
CL (Current Loop)
acc. to EN 62056-21 Mode B
passive current loop
2400 Baud, fix
galvanic
yes
30 V max.
30 mA max.
< 2 V at 20 mA
TKB 3436
EN 1434-3; EN 13757-2, -3
EN 60870-5
yes
no
5 mm
0.25 ... 0.75 mm²
0.25 ... 0.75 mm²
any
50 V DC maximal
1 M-Bus load (1.5 mA)
primary or secondary
300, 1200, 2400, 4800 or 9600 baud
see TKB3448
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