Instructions
ECL Comfort 210 / 310, communication description
6.10
Alarm
PNU 1024 and 1025 holds the alarm status bitmask. The
meaning of the alarm numbers is specific to the application.
Alarm number 1 corresponds to PNU 1025 bit 0.
The ECL display can be used to show the alarm numbers, e.g.
PNU 1040 – 1071 hold the status of each individual alarm
number.
6.11
Energy meter data, M-bus (from version 1.10)
The ECL 310 allows communication with up to 5 energy
meters via M-bus. The M-bus readout is based on the EN-1434
standard.
Danfoss recommends that AC supplied energy meters are used
for M-bus communication.
Use of a battery supplied energy meter will normally shorten the
battery life-time. Consult the specific manufacturer for details
about battery life-time and the allowed data exchange rate.
M-bus configuration
PNU Description
5997
M-bus Baud rate
0: 300 (default)
1: 600
2: 1200
3: 2400
5998
M-bus command request
0: None
1: Init (re-initialization)
2: Scan for energy meter
5999
M-bus state
0: Reset
1: Init
2: Scanning
3: Idle (collecting data if setup is present)
The available data from an energy meter depends on selected
‘Type’ and what the energy meter supports. See {Appendix}
for further description.
Base PNU
6000
Energy meter 1
6050
Energy meter 2
6100
Energy meter 3
6150
Energy meter 4
6200
Energy meter 5
Danfoss District Energy
VI.LG.V3.02
DEN-SMT/DK
17