Siemens SIMATIC ET 200iSP Operating Instructions Manual page 49

3. You can use standard PROFIBUS DP cables (see Appendix "Order Numbers (Page 335)")
in potentially explosive areas. You must, however, mark these as "Ex i bus cable" (for
example, with a blue band/blue shrink-on sleeve at the ends or mark the cable with a blue
color).
4. Connect the PROFIBUS RS 485-IS bus cable to the IM 152 using the PROFIBUS RS 485-
IS connector (see Appendix "Order numbers (Page 335)").
5. Terminate the PROFIBUS RS 485-IS with the PROFIBUS RS 485-IS connector: (see
Appendix "Order Numbers (Page 335)"). The transmission rate determines the maximum
length of PROFIBUS RS 485-IS (refer to product information RS 485-IS coupler
support.automation.siemens.com/WW/view/en/29306413)).
Figure 3-2 Configuration Options for the ET 200iSP in Zone 1
Rules for configuring the ET 200iSP in Zone 21:
If you use the ET 200iSP in zone 21, you must adhere to the following rules:
1. Install the ET 200iSP in a dust-proof (certified) enclosure with at least degree of protection
IP 6x (according to directive 94/9/EU for category 2D). You can find additional requirements
(such as surface temperature) in the certification document for the specific enclosure (see
section "Rules for installation (Page 83)", see appendix "Order numbers (Page 335)").
2. See points 2 to 5:
ET 200iSP
Operating Instructions, 11/2017, A5E00247483-07
Rules for Configuring the ET 200iSP in Zone 1
Configuration options
3.4 Configuration Options in Zones
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