Wiring the serial data interfaces (RFU62x-101xx/RFU62x-104xx)
The maximum data transmission rate for the serial interface depends on the length of
cable and on the type of interface. Observe the following recommendations:
Table 16: Serial interfaces: data transmission rates
Interface Data transmission rate Distance to the target computer
(host)
RS-232 Up to 19.2 kBd
38.4 kBd ... 57.6 kBd
115.2 kBd … 500 kBd
Max. 10 m
Max. 5 m
< 2 m
RS-422/485
1)
Up to 38.4 kBd
38.4 kBd ... 57.6 kBd
57.6 kBd … 500 kBd
Max. 1,200 m
Max. 500 m
Max. 10 m
1)
For RS-422/485-suitable cable and corresponding cable termination as per specification.
NOTICE
Risk of damage to the internal interface modules!
If the serial data interfaces are wired incorrectly, then electronic components in the
device could get damaged.
■
Observe the information on wiring.
■
Carefully check the wiring prior to switching on the device.
RS-232
!
"
§
Device 1 Host
TxD
RxD
GND
RxD
TxD
GND
RS-422
RS-485
$
%
&
/
(
Device 1 Host
RD+
TD+
RD‒
TD‒
GND
TD+
RD+
TD‒
RD‒
GND
Figure 32: Wiring of the serial data interfaces RS-232 and RS-422/485
1
Device
!...§
Pin assignment: see RS-232 pin assignment for the respective device
$...(
Pin assignment: See RS-422/485 pin assignment for the respective device
NOTE
Activate the serial data interface type in the device using a configuration tool, e.g. the
SOPAS ET configuration software.
Wire the data interfaces of the RFU62x-101xx/RFU62x-104xx via a connection module:
ELECTRICAL INSTALLATION
6
8015930/ZTM0/2018-11-06 | SICK O P E R A T I N G I N S T R U C T I O N S | RFU62x
59
Subject to change without notice