Danfoss m2 User Manual

32 Manual RS.8A.N5.02 © Danfoss 10-2007 m2 Version 3.11
Each controller must have an address set using the controller’s menu system.
Network address o03 1-99
Service-pin message o04 ON
Setup
EKC controllers
m2 can receive signals from up to 99 EKC controllers.
(Although max. 99 measurements in all to one m2.)
The data communication cable on RS485 (LON) must
full the requirements described in the separate
document: RC8AC.
Addresses
Each EKC controller must have an address set in its
menu system. This address must then be sent via
data communication to the m2 unit. This is done us-
ing a setting in the EKC controller. When m2 receives
the address, it will rst use the address number as
a point number, so that the two numbers are the
same. BUT this is only the case if the point has not
already been dened for the other side (another EKC
controller or a direct point). If it has already been
used, the existing setting will be retained and the
last one entered will not be used.
The following controllers can be connected to an m2
unit:
EKC 201, 201C, 201 dbl. thermostat, EKC 301
EKC 202 version A, B, C, D
EKC 331
EKC 331T
EKC 531D1 version 1.36 application 1 (1.361)
AK-PC 530 version 1.36 application 1 (1.361)
Do not use the same address for several EKC controllers and do not use an
address number that has already been used as a point number.
Sequence:
1. Connect m2 and the EKC controllers using a data communication cable
2. Switch on m2
3. Switch on the rst EKC controller
a. Set the menu “o03”
b. Set the menu “o04”
4. Repeat point 3 for all controllers on the data communication
5. Continue setup in m2. See page 33.
Shown in the table below is the operation for logging a EKC controller onto a
m2 system.
The symbols for pushing of buttons have the following meanings:
Push the upper button Push the lower button
Push both buttons simultaneously
When a EKC controller is logged on to a m2 system, whatever the controllers
address is parameter (o03) will automatically be assigned as the point number
on the m2. This will include overwriting any previous settings set to that point
number.
Ensure before logging a EKC controller onto a m2 system, that the address set is
available in the m2. If not available then change the address on the controller.
A EKC controller is logged onto a m2 system from the
controller only.

Danfoss m2 Specifications

General

Brand	Danfoss
Model	m2
Category	Control Systems
Language	English