Networks And Connectivity; Connection To Monitoring System - Galletti EVO-2-TOUCH Manuel D'installation Et D'utilisation

7

NETWORKS AND CONNECTIVITY

EVO-2-TOUCH offers the possibility to interface
in networks of the type:
1. RS485 network with monitoring software
GARDA. See figure 11.1 p. 114
7.1 CONNECTION TO MONITORING SYSTEM (GARDA SOLUTION)
Through the RS485 serial port it is possible to
connect the EVO controllers (up to 247 hydronic
indoor units) to a management software pro-
gramme that uses the MODBUS RTU standard
as communication protocol with the following
features:
Ū Settable baud rate (default: 9600);
Ū no parity
Ū 8 data bits
Ū 1 stop bit
Within a monitoring network, each EVO control-
ler behaves like a SLAVE towards the centralised
management system that constitutes the MAS-
TER of the (see figure) 11.1 p. 114 network.
Once you have wired the network, you must
configure each EVO controller. Enter the list of
network and connection parameters (accessible
via the key in the USER MENU) and set the RS485
SETUP parameters as follows:
Ū MST/SLV = "Slave from SPV"
Ū Protocol = "Modbus"
Ū Serial address = set a value from 1 to 255
» Coil status (digital read/write)
Description
ON/OFF controller
1
SUMMER/WINTER controller
2
ECONOMY controller
3
ANTIFREEZE ENABLING controller
4
HEATING ELEMENTS ENABLING controller
5
modulating fan MAN/AUTO controller
6
ON/OFF enabling from MASTER
7
ECONOMY enabling from MASTER
8
SUMMER/WINTER enabling from MASTER
9
» Input status (digital read-only)
Description
Hydronic indoor unit ON/OFF
1
SUMMER/WINTER
2
ECONOMY active
3
2. SMALL network: SMALL RS485 network and
SMALL power-line communication network
3. MIXED network (GARDA+ PLC or RS485 +
PLC) 11.4 p. 114
Ū Speed = set according to the needs of the
Master, leave the PLC SETUP parameters un-
changed (MST/SLV = none).
INFO:
for details on the network wiring it is
recommended to read the document "RS485
network guidelines", available in the Galletti
website's download area.
The functions recognized and managed by the
controller as SLAVE are the following:
Code Description
coil status reading
01
input status reading
02
holding register reading
03
input register reading
04
coil status multiple writing
15
holding register multiple writing
16
WARNING: As a result of the use of different
MODBUS protocol standards, the addresses
shown in the following tables may differ by
one unit.
The following are the available variables:
Description
ANTIFREEZE enabling from MASTER
10
HEATING ELEMENTS enabling from MASTER
11
SET-POINTS enabling from MASTER
12
SET-POINT LIMITS enabling from MASTER
13
FAN SPEED enabling from MASTER
14
KEYPAD LOCK controller
15
HUMIDITY CONTROL enabling signal from MASTER
16
HUMIDITY CONTROL enabling
17
CONFIGURABLE DIGITAL OUTPUT NO7 controller
18
Description
ANTIFREEZE active
4
presence of ALARM
5
Room temperature probe alarm
6
45
FC66005977