Description; Important Notice; Interface; Optional Rs232 Board - codix R60355 Serie Complemento - Instrucciones De Utilización De La Opción

1 Description

These operating instructions describe the optional
RS232/RS485 interfaces and their protocols.

2 Important notice

Read both these operating
instructions relating to the
optional interfaces and the
operating instructions of the
basic device before operating
the device.

3 Interface

Signal lines are connected via 5 screw terminals
with a spacing of 3.5 mm.

3.3 Device connection recommended by the Modbus Organization [1]

Page 2
MODBUS
D0
D1
Common

3.1 Optional RS232 board

The RS232 interface allows a point to point
connection. No data flow control is supported.
Connections
The maximum allowed cable length is 15 meters,
or the cable length compatible with a capacity of
2500 pF.
The ground of the interface GND 5 is connected to
the ground of the device.

3.2 Optional RS485 board

The RS485 interface allows a multipoint
connection. Up to 32 devices may be connected to
a bus segment.
Connections
The use of low-capacity and low-attenuation
twisted pair cable allows achieving extremely
reliable connections over long distances
(maximum 1000 m).
Description
Device
B (-)
A (+)