ENGLISH - 6/8
DIP - SWITCH SETTINGS
WARNING
BEFORE YOU ATTEMPT USING THE DIP-SWITCHES, MAKE SURE THAT YOU HAVE
DISCONNECTED ALL DANGEROUS VOLTAGE CIRCUITS.
The range of the instrument is established by the SW1 DIP-switch settings (2-way); the table
below shows the useful combinations for the pre-set ranges.
In the following tables l corresponds to DIP- switch = 1
(ON) no indication corresponds to DIP- switch = 0 (OFF)
DIP Switch
ON
OFF
DIP-Switch SW1 - INPUT SCALES (maximum limit values)
7
8
DC SCALE
AC SCALE
0 – 150 V
0 – 100 V
~
0 – 500 V
0 – 350 V
~
0 – 850 V
0 – 600 V
~
0 – 1200 V
0 – 850 V
~
MODBUS CONNECTION RULES
1)
Install the modules in the omega rail (120 max)
2)
Connect the remote modules using cables of an appropriate length.
3)
The following table shows cable length data:
- Bus length: maximum length of the Modbus network in function of the Baud Rate.
It is the length of the cables that connect the two modules on which the bus terminal
has been inserted by means of a DIPSwitch (see Diagram 1).
- Derivation length: maximum length of a derivation (see Diagram 1).
Diagram 1
Module 3
DL
Module 1 Module 2
Module 5
DL: Derivation length
Bus length
•
MODBUS Diagram 1
BUS length
Derivation
length
Baudrate
1200 m
2 m
115kbps
For maximum performance, it is
recommended to use special shielded
cables, such as BELDEN 9841.
PROGRAMMING VIA MODBUS INTERFACE
The module can be programmed/configured via the MODBUS interface. For
details on communication, refer to the User Manual.
For the variation of the parameters, the communication software is available in the download area of
the www.seneca.it website: Z-NET and EASY-SETUP.
With all DIP-switches in the OFF position (the communication parameters are taken from the memory).
t
Module
4
