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Presentation
In order to communicate with an intelligent environment, Zelio Logic smart relays
and their I/O extension and communication modules are equipped with various types
of communication port.
Compact and modular smart relays offer:
1 RS 232 serial port for connection of the PC, the Modem communication interface
or a memory cartridge slot.
Zelio Logic modular smart relay I/O extension and communication modules offer:
1 Modbus RS 485 port on communication module SR3 MBU01BD,
1 Ethernet 10/100 base T port supporting the Modbus TCP protocol on
communication module SR3 NET01BD.
These three ports allow Zelio Logic compact or modular smart relays to use 3
communication protocols:
Programming,
Modbus,
Ethernet.
Communication ports on Zelio Logic smart relays and their I/O extension and
communication modules:
Communication
port
Serial port
Modbus port on
communication
module
SR3 MBU01BD
Ethernet port on
communication
module
SR3 NET01BD
Modem
communication
interface port
Physical layer RS 232
RS 485
10/100 base T
RS 232
Connector
Specific to Zelio RJ45
RJ45
Specific to Zelio
Compact
smart relays
All types
(connection and
isolation via cable
SR2 CBL01 or
SR2 USB01)
–
–
All modules with
clock
SR2 B
ppppp
SR2 E
ppppp
(see page
54)
Modular
smart relays
All types
(connection and
isolation via cable
SR2 CBL01 or
SR2 USB01)
All modules with
c
24 V supply
SR3 B
ppp
BD
All modules with
c
24 V supply
SR3 B
ppp
BD
All types
(see page
54)
b
v
b
v
v
b
b
b
109449
Smart relay
6
7
000003-26
1
3
1
Modular smart relay (10 or 26 I/O).
2
RS 232 serial port, Zelio Logic type
connector.
3
Modbus slave or Ethernet server
communication module.
4
RJ45 connector for Modbus or Ethernet
network connection.
5
I/O extension module: discrete
(6,10 or 14 I/O) or analogue (4 I/O).
6
Modem communication interface.
7
GSM (or analogue PSTN) Modem.
d
The order shown above must be observed when using
a Modbus slave or Ethernet server communication
module and a discrete or analogue I/O extension module.
An I/O extension module cannot be fitted before the
Modbus slave or Ethernet server communication module
2
4
5
Presentation
1
Zelio Logic smart relays
1
Communication
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