Danfoss application A214 Manual do Utilizador descarregar pdf (Página 33)

Data sheet ECL Comfort 310 controller, Remote Control Units ECA 30 / 31 and Application keys

VD.KT.X3.02 © Danfoss 04/2015

DEN-SMT/DK

ECL 485 communication bus data:

Purpose For internal ECL Comfort 210 / 310 and ECA 30 / 31 use only

(Danfoss proprietary bus)

Connection Terminals in base part

Non-galvanic isolated

Cable type Shielded cable, 2 x twisted pair,

Min. cross section: 0,22 mm (AWG 24).

Examples:

LiYCY 2 × 2 × 0.25 mm2 (AWG 24) or Ethernet CAT5

Max. total cable length (bus cable + sensor cables) 200 m in total (inclusive sensor cables)

Max. number of ECL slaves connected Units with unigue address (1 - 9): 9

Units with address “0”: 5

Max. number of Remote Control Units connected 2

Data sent from master Date

Time

Outdoor temperature

Desired room temperature

DHW-priority signal

Data sent from addressed slave controller Desired ow temperature from each circuit

Data sent from ECA 30 / 31

• Actual and desired room temperature

• Function selector mode

• (ECA 31) Relative humidity

Modbus communication data:

Purpose For SCADA system

Connection Terminals 34 and 35 in base part. Modbus reference

(terminal 36) must be connected.

Galvanic isolated (500 V).

Protocol Modbus RTU

Cable type Shielded cable, 2 x twisted pair + Signal GND.

Min. cross section: 0,22 mm2 (AWG 24).

Example: LiYCY 2 × 2 × 0.25 mm2 (AWG 24)

Max. bus cable length 1200 m (dependent on cable type and installation).

Communication speed Half duplex.

9,6 Kbit/s (default) / 19.2 Kbit/s / 38.4 Kbit/s

Serial mode 8 data bit, even parity and 1 stop bit.

Network According to the standard Modbus Serial Line

Implementation Guide V1.0.

M-bus communication data:

Purpose Connection to heat meters, max. 5 heat meters

Connection Terminals 37 and 38 in base part.

Non-galvanic isolated

M-Bus master according to DS / EN 1434-3: 1997

Cable type 2 x 0,8 mm2

Example: JY(St)Y 2 x 0.8 mm2 (not twisted pair)

Max. cable length 50 m

Baud rate 300 baud (adjustable)

Update time 60 s (adjustable)

Gateway function Allows the ECL Portal to read energy meters directly

Supported heat meters Infocal 6 and many other marks and types.

Information about other heat meters on request

Transmitted heat meter data Heat meter type dependent:

• Primary ow temperature

• Primary return temperature

• Actual ow / accumulated ow

• Actual heat / power

• Accumulated heat energy

Recommendations: Danfoss recommends 230 V a.c. supplied heat meters

USB communication data:

USB CDC (Communication Device Class) For service purposes

(Windows driver is needed, to enable that Windows recognize

the ECL as a virtual COM port)

Modbus over USB Similar to the serial Modbus, but with relaxed timing

Connection, cable type Standard USB cable (USB A -------- USB B)

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 39 40

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Danfoss application A214 Manual do Utilizador Página 33

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