Network Connection; Setup; Control Logic; Management Of Slave By Terminal (Master) - Carel humiSonic User Manual

13.1 Setup

The Master unit is able to control the operation of a maximum of 3 Slave
units connected via tLAN network . For electrical connections refer to
diagram on following.
The Master unit's dipswitches 1-3 must be all set to OFF.
Each slave unit must be properly confi gured via the following dipswitches:
1: Set to ON for the conversion of the serial port (M11) from 485 to tLAN;
2/3: Slave address, as shown in the following fi gure.

13.2 Control logic

The master unit controls each Slave unit, through the following
parameters:
•
enable / disable the operation;
•
level of production of atomized water.
The control signals (probes / humidistat / external regulator) are read and
handled only by the Master who shall then adjust the operation of the
slave. The production level of the Master is passed to all the Slaves:
Es.1: Master confi gured proportional control (see cap.4.4 the manual)
and 90% of request: The master and each slave modulate 90% of its
capacity (see chap. "Operating principles").
ES.2: Master confi gured in the control room sensor, set point 50% rH: The
setpoint is reached the Master and all Slave interrupt the production of
waterspray.
Each unit (Master or Slave) is autonomous as regards the control logic of
the production of atomized water and all the other functions.
13.3 Management of slave by terminal
(master)
From the main screen press the PRG button for 3 seconds and enter
the password 90. The terminal displays the status of slaves connected
according to the following logic:
a digit from the left: Unit 1 Status, Unit 2 Status, Unit 3 Status.
The symbol 1 means "online unit" and the symbol  means "unit offl ine".
In Fig.1 is the example of online Unit 1 (left Digit to1) while Unit 2 and 3
Offl ine(middle digit and the right to  ).
Pressing the ENTER key on the terminal goes into the selection menu of
the drive you want to check with the UP and DOWN to select the desired
unit. Fig.2 shows the selection screen of Unit 1.
Press ENTER to access the control menu of the desired unit, with UP and
DOWN you can scroll through the following views:
•
Percentage of demand from the master (Fig. 3).
•
Operating hour counter (Fig. 4), resettable by pressing UP + DOWN for
5 seconds (see parameter d3, Sect. 7.4 of manual - cod. +0300056EN).
•
Units alarms (Fig. 5, if absent --is displayed), can be reset by pressing UP
+ DOWN for 5 seconds.
•
Access to confi guration parameters menu (Fig. 6).
In this view, the icons show the status of the selected unit (Fig.9)
Press ENTER at the login screen of the confi guration parameters menu to
access the list of parameters (Fig. 7).
For the meaning of the parameters, see chap. "Confi guration parameters".
Parameter b8 is used as a timeout for the recognition of a unit offl ine.
According to the number of connected slaves it may be necessary change
this parameter (default is 10 seconds).

13. NETWORK CONNECTION

33

13.4 Alarms

From the main screen, the Master displays the presence of alarms, of a
given slave, trough the code ESX.
With X meant as the slave address that the alarm is active (Fig. 8, alarm
slave 1).
For details of the alarm being you must enter the menu on the slave.
Each unit is autonomous in managing their alarms, except those related
to control signals connected to the Master that inhibit the entire network
of humidifi ers (See Table 13.a)
13.5 Control via Supervisor (Carel/Modbus®)
Using supervision variables I62 and I63 (Modbus 189 and 190) you can
view and set the parameters of the slave.
The variable I62 (Modbus 189) must be written as in table 13.b. If the
variable is required for reading the value will be present in the variable
I63 (Modbus 190) after writing the I62, if the variable is required for
writing, the value written will be present in the variable I63, which must
be written fi rst.
Ex: Write the parameter P0 Slave 2 to 70
•
Writing I63 into 70;
•
Writing I62 into 50224 (See table 13.b for example):
Fig. 1
Fig. 4
Fig. 7
Code Description
PU External Signal not connected
OFL Supervisor unconnected and Master Unit with serial request
enabled
Bit 15 Bit 13-14 Bit 8-12
Mode Slave Address Variable Type
0=Reading 01 = Slave 1 00100=Int.
1=Writing 10 = Slave 2 01000=Analog
11 = Slave 3 10000=Dig
Example:
Writing Slave 2 Int.
variable Address 48
1 10 00100 00110000
Direct version for room applic. +0300062IE - rel. 1.0 - 10.09.2015
ENG
Fig. 2 Fig. 3
Fig. 5 Fig. 6
Production
Fill
Water presence
Fig. 8
Drain
Fig. 9
Tab. 13.a
Bit 0-7
Carel Supervisor Address
Es.: 0000 1000=8
Tab. 13.b
P0=
=1100010000110000=50224