Connecting Multiple Units Using Linkup - Nortec EL005 Installation Manual

Table 10: Modbus Communication Parameters
Signal type
Transmission mode
Baud rate
Data bits
Stop bits
Parity
Address
Time out
5.8.4

Connecting Multiple Units Using Linkup

The integrated controller in the Nortec EL steam humidifier allows up to six integrated controllers (for
a maximum of 12 steam cylinders) to be connected in a "main-extension" configuration using Nortec's
Linkup system. All the humidifiers within this setup must share the same location, and all linked units
will be controlled by one set of control signals connected to the main unit.
Figure 37
Refer to
1. Connect all control signals for the entire Linkup configuration to the low voltage terminal strip A in
the main unit.
2. Install a jumper wire between the terminal points "1" and "2" in the low voltage terminal strip on all
extension units.
3. Connect a multi-strand twisted pair shielded cable (18-24 AWG, 120 Z) between the J10 connectors
on the control board of each Nortec EL steam humidifier in the Linkup system.
IMPORTANT! Do not reverse polarity.
4. Install the termination jumper JP8 in the control board of the last extension unit in the Linkup system.
5. Finally, refer to the Operation and Maintenance Manual to set up the multi-unit configuration in the
control software.
Installation
54
Parameter
and connect multiple unit using Linkup as follows:
Default
EIA-485
RTU
9600
8
1
Even
10
300 s
2582302_C_EN_1611
Software Adjustable Range
–
–
110, 300, 600, 1200, 2400, 4800,
9600, 19200, 38400, 57600, 76800
or 115200
–
–
Odd, Even, None
1-247
1-300 s
Nortec EL