Datasheet

Data sheet

ECA 71

MODBUS for the ECL Comfort 200/300 series

DH-SMT/DK

Application The ECA 71 MODBUS communication module

makes it possible to establish a MODBUS

network with standard network components.

Via a SCADA system (OPC Client) and the

Danfoss OPC server it is possible to control

ECL Comfort controllers in the 200/300 series

remotely.

ECA 71 can be used for all application cards in

the ECL Comfort 200 series as well as in the 300

series (as of controller version 1.04).

The following parameters (card dependent)

can be read and / or set:

• Sensor values

• References and desired values

• Manual override

• Output status

• Mode indicators and status

• Heat curve and parallel displacement

• Flow and return temperature limitations

• Schedules

• Heat meter data (if ECA 73 is mounted)

Application example

Ordering

Type Description Code No.

ECA 71 MODBUS communication module 087B1126

Instructions, ECA 71 protocol

Instructions, ECA 71 / 72 installation and user guide

087B1773 (English)

087B1771 (English)

Gateway RS232 /

RS485 MODBUS

SCADA system:

Connected via

Danfoss MODBUS

OPC server

ECL Comfort

Heat meter

M-bus connection

PAGE 1
Data sheet ECA 71 MODBUS for the ECL Comfort 200/300 series Application The ECA 71 MODBUS communication module makes it possible to establish a MODBUS network with standard network components. Via a SCADA system (OPC Client) and the Danfoss OPC server it is possible to control ECL Comfort controllers in the 200/300 series remotely. ECA 71 can be used for all application cards in the ECL Comfort 200 series as well as in the 300 series (as of controller version 1.04).
PAGE 2
Data sheet ECA 71 for the ECL Comfort 200/300 series Technical data Storage temperature -40 oC - 70 OC Ambient temperature 0 - 50 OC Installation Rear slot ECL Comfort controller Module weight 12 g Transceiver type RS 485 MODBUS Communication speed 38.4 KB/s half duplex / 19.2 KB/s half duplex Read performance Single parameter (PNU): 200 parameters/minute @ 19.2 KB/s Compressed read: up to 16 x 200/minute @ 19.2 KB/s According to the standard Modbus Serial Line Implementation Guide V1.0.