© Danfoss | 2017.06 | 7
VI.LV.H1.02
Service guide
ECL 296 / ECL 310 Modbus
7.1 Central heating station
1) = surge protector 2) = repeater
Note:
a)
Repeater channels are isolated. Based on the central heating
station architecture, more than one network (like left wing, right
wing) is possible. Single point earthing on common reference
signal (S.Gnd) and shield cable to be maintained (Refer section 5
point 5, 6).
Dot on the intersection lines (S.Gnd, Earth) means that those two
signals are electrically shorted.
Surge suppressor connection should match as in section 8.2.
