Rs422, Synchronization - MICRO-EPSILON scanCONTROL 29 Series Operating Instructions Manual

Mounting and Installation
5.2.3
Connector multifunction
The scanCONTROL 29xx sensor has a RS422 port according to EIA standards, which can be parameterized
as input or output via software.
scanCONTROL 29xx
The RS422 port can be used to synchronize several sensors with each other, triggering or measurement
supports Power over
value output (for example Modbus).
Ethernet. If the sen-
sor is connected to
The internal terminating resistor (termination R
a network adapter/
software. The signals must be operated symmetrically, according to the RS422 standard, i.e. preferably with
switch that is capable
RS422 driver circuits or converters. Alternatively use devices with RS422 connectors, e.g. sensors or PLC's.
of POE and if you also
The RS422 port is galvanically isolated from GND and Laser on/off, but not from GND-In1 ... 3. When used
use the power supply
one of the GND-In1 ... 3 should connected to the GND of the remote station in order to avoid potential differ-
of the multifunction
port, these two power ences.
supplies have to be
galvanically isolated.
RT On/Off
(Software)
Fig. 18 RS422 synchronization internal circuity
scanCONTROL 29xx

RS422, Synchronization

socket, see Fig. 16,
Rx
Tx
IN/OUT
pin assignment, see Fig. 17.
= 120 Ohm, see Fig.
T
Sync+
RT = 120 Ohm
Sync-
GND
18) can be activated or switched off via
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