Modules
Terminal modules
4 AI I 4WIRE HART
x
x
x
4 AI RTD
x
x
x
4 AI TC
x
x
x
4 AO I HART
x
x
x
Reserve module
x
x
x
x
1
x
1
WATCHDOG
x
x
x
1
product version 3 or higher of the reserve module
3.4
Configuration Options in Zones
General rules
Regardless of the configuration of the ET 200iSP in hazardous areas or in the safe area, the
following rules apply:
The ET 200iSP distributed IO station can only be operated on the intrinsically safe PROFIBUS
RS 485-IS:
1. An RS 485-IS coupler (field bus isolating transformer) is always required
2. Identification of PROFIBUS DP as Ex i (not only for potentially explosive areas)
3. Marking of the cables/wires to the actuators and sensors as EEx i (for example, using the
color light blue).
WARNING
Connect only intrinsically safe devices to PROFIBUS RS 485-IS
All devices connected to PROFIBUS RS 485-IS must be intrinsically safe.
Do not connect voltage measuring devices, oscillographs, and bus testers to
PROFIBUS RS 485-IS.
Rules for configuring the ET 200iSP in Zone 1:
If you use the ET 200iSP in zone 1, you must adhere to the following rules:
1. Installation of ET 200iSP in an enclosure with type of protection Ex e (increased safety).
(see section "Rules for installation (Page 83)", see appendix "Order numbers (Page 335)").
2. Isolation of PROFIBUS DP by means of RS 485-IS coupler (see Appendix "Order
Numbers (Page 335)"). The RS 485-IS Coupler ensures protection class Ex i of PROFIBUS
DP in potentially explosive areas. You can install the RS 485-IS Coupler in zone 2 potentially
explosive areas or in safe areas.
Configuration options
3.4 Configuration Options in Zones
ET 200iSP
48
Operating Instructions, 11/2017, A5E00247483-07