Siemens SIMATIC ET 200iSP Operating Instructions Manual page 132

Wiring
6.4 Wiring the ET 200iSP
At the terminal module TM-IM/IM, connect the bus connectors for redundant operation of the
two interface modules.
Requirements for Zone 1 and Zone 21 for the configuration with PROFINET connection
Explosion hazard
When the fiber-optic cables that are connected to the ET 200iSP run through hazardous areas,
all devices must be certified according to the EN/IEC 60079-28 standard.
Keep to the following rules in Zone 1 and Zone 21:
1. Use a suitable media converter (see Appendix "Article numbers (Page 419)").
2. For the connection of the PROFINET IO, the interface module IM 152-1PN must be plugged
in: "Inserting and labeling the interface module and electronic modules (Page 143)"
3. If you want to loop through the PROFINET connection to the next ET 200iSP, use a fiber-optic
cable with LC plug. To loop-through, connect the fiber-optic cable to the second fiber-optic
cable connection of the interface module.
4. Use the fiber-optic cables specified in the Appendix "Article numbers (Page 419)" for the
PROFINET IO connection and mark the bus cable as "Ex i bus cable". If you use a color as the
identifier, you must select light blue.
Requirements for Zone 1 and Zone 21 for the configuration with PROFIBUS connection
Keep to the following rules in Zone 1 and Zone 21:
1. Use the RS 485-IS coupler (see Appendix "Article numbers (Page 419)").
2. If you want to loop-through the PROFIBUS RS 485-IS connection to the next ET 200iSP, use
the PROFIBUS bus connector RS 485-IS (article number 6ES7972-0DA60-0XA0). To loop the
module through, connect the bus cable to the second cable outlet of the bus connector.
3. Terminate the PROFIBUS RS 485-IS with the PROFIBUS bus connector RS 485‑IS. The
PROFIBUS bus connector RS 485-IS (6ES7972-0DA60-0XA0) has an integrated terminating
resistor.
4. Use the bus cables specified in the Appendix "Article numbers (Page 419)" for the PROFIBUS
RS 485-IS connection and mark the bus cable as "Ex i bus cable". If you use a color as the
identifier, you must select light blue.
5. The shield of the bus cable must be connected to one of the following locations providing a
sure ground connection EB:
– Either at the transition of the bus cable from the safe area to the hazardous area
– or in the safe area directly at the RS 485-IS coupler. In this case, the shield must be
132
DANGER
installed like an active intrinsically safe circuit, i.e. protection against accidental contact
must also be provided for the shield of the bus cable (IP20).
Operating Instructions, 11/2022, A5E00247483-AK
ET 200iSP