Following components are available as accessories for the ET 200M:

• Bus modules for connection/disconnection of modules during operation (hot swapping)
• DIN rail for connection and disconnection of modules during operation
• Covers for backplane bus and bus modules
• Front connectors
• Ex partition for ET 200M
• DM 370 dummy module
• LK 393 cable guide

Ex partition for ET 200M

Ex partition

A mechanical isolation is required between the IM 153 interface module and the first Ex I/O module. For the hot swapping function, an Ex partition is installed which guarantees the prescribed isolation distance between non-intrinsically-safe and intrinsically-safe areas of an ET 200M remote I/O station.

Note:

The Ex partition must be used in connection with bus modules with active backplane bus. If no bus modules with active backplane bus are being used, the DM 370 dummy module can be used instead.

DM 370 dummy module

DM 370 dummy module

• Reservation of slots for unconfigured I/O modules
• Retention of design and address assignment when replacing by I/O module

LK 393 cable guide

LK 393 cable guide

The LK 393 cable duct provides the prescribed isolation between the load voltage input and the intrinsically safe inputs/outputs. The cable duct is easy to fit following insertion of the load voltage inputs L+.