Rs485 Polled Interface - Datalogic DS41-X0 Installation Manual

DS41
To select this interface type, follow the instructions in paragraphs 2.3 and 2.4.

RS485 polled interface

The RS485 POLLED interface is a Half Duplex (3 wires + shield) interface.
The POLLED configuration can be used for multidrop connections with a
Datalogic multiplexer or it can also be used for a master-slave layout (see
paragraph 2.9.1).
The following pins of the 25-pin connector are used for RS485 POLLED
communications:
To select this interface type, follow the instructions in paragraphs 2.3 and 2.4.
2.16 - Installation
DS41
2
TX485+
4
TX485-
3
RX485+
RX485-
5
7
SGND
Figure 2.17 - RS485 NON POLLED connections
Pin Name
2 TX485+
4 TX485-
7 SGND
DS41
2
4
7
SGND
Figure 2.18 - RS485 POLLED connections
USER INTERFACE
Function
RS485 input/output (+)
RS485 input/output (-)
Signal Ground
MULTIPLEXER
TX485+
TX485-
RX485
TX485
SGND
+ RTX485
- RTX485
RS485REF
DATALOGIC