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8024493/AE00/V1-0/2020-09| SICK
O P E R A T I N G I N S T R U C T I O N S | DUSTHUNTER SP100 Ex-2K
Subject to change without notice
ELECTRICAL INSTALLATION
7
7.8
Connecting interfaces
7.8.1
Interface module (option) of the MCUDH Ex-3K
The optional RS485 (Modbus ASCII/RTU) interface module is to be plugged onto the top-
hat rail in the control unit (
see “MCUDH Ex-3K component layout”, page 54
) and connected
to the corresponding connection on the processor board with the ribbon cable via plug
connector (
see “MCUDHEx-3K processor board connections”, page 55
The module offers the possibility to connect another optional Ethernet CoLa-B or Ethernet
Modbus® TCP interface module (
see “Options for MCUDH Ex-3K control unit”, page 127
via a RS485 signal line up to 1000 m long, outside the Ex-area, for example in a control
room. These two interface options are not intended for use in Ex-areas. Furthermore the
RS485 signal line can be used directly.
To use the USB service interface, we recommend using the Sopas Service Kit (2097408)
and the appropriate adapter plug (6075779).
Fig. 27: Adapter plug (6075779) with connection diagram