14
DRAFT
dential SIME
MODBUS mode (fig. 4/d)
This mode allows for MODBUS commu-
nication of at least two boilers in cascade
and is performed by requesting another
RS-485 board provided in the kit code
8092244.
ATTENTION: Communication will occur
only with the MASTER boiler, (boiler
with PAR 15 = 0), interpreting the casca-
de as a single heat capacity generator:
P
CASCADE
= P
BOILER
x No.
BOILERS
.
To install the second board, proceed as
follows:
- Remove the cover and electrical-
ly connect the second RS-485 board
equipped with lid to the RS-485 board
already installed in the MASTER boiler
(boiler with
PAR 15 = 0
) with the wired
connector provided in the kit.
CAUTION: Insert the wired connector
with caution.
- Set the DIP SWITCH of the new board
in MODBUS mode.
- Close the lid of the second board.
- Choose the communication configu-
ration suited to the MODBUS network
(PAR 17 INST) according to
Table PAR
17 INST
.
RS-485 connection to the INSOL/MIXED
ZONE (fig. 4/e)
The RS-485 board can be connected
to optional INSOL kit code 8092254 or
MIXED ZONE code 8092252. Both require
the board housing kit code 8092236.
Carry out the electrical connections as
indicated in the figure 4/e.
ATTENTION
See the instruction sheet provided with
the INSOL / MIXED ZONE kits fro con-
nection details.
CN10
Schedino
INSOL/ZONA MIX e kit
alloggiamento scheda
CN10
COMUNICAZIONE
MODBUS
MODBUS
COMMUNICATION
1
23
45
6
Schedino
INSOL/ZONA MIX e kit
alloggiamento scheda
Fig. 4/e
d
r
a
o
b
5
8
4
-
S
R
2
h
ti
w
r
e
li
o
B
d
r
a
o
b
5
8
4
-
S
R
1
h
ti
w
r
e
li
o
B
INSOL/MIXED ZONE
Expansion card
INSOL/ MIXED ZONE
Expansion card
Fig. 4/d
CN10
COMUNICAZIONE
MODBUS
MODBUS
COMMUNICATION
CONNETTORE CABLATO
(cod. 6319173)
WIRED CONNECTOR
(cod 6319173)
1
23
45
6
1
2
3
DIP SWITCH
GESTIONE IN MODBUS
MODBUS MANAGEMENT
1 2 3
ON
INSTALLER PARAMETER SETTING:
PAR 16
MODBUS ADDRESS
--
= Not enabled
1...31 = Slave from 1 to 31
(ATTENTION: Do not set the
slave boilers with the same
address
PAR 17
MODBUS CONFIGURATION
--
= Not enabled
1...30 = Default value: 25
(See
Table PAR 17 INST
)
