Siemens Welding System ST PCS 7 User Manual

ET 200iSP distributed I/O

Siemens ST PCS 7 · November 2007

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The IM 152 interface module connects the ET 200iSP to the 

PROFIBUS DP with intrinsically-safe RS 485-iS transmission 

technology with transmission rates up to 1.5 Mbit/s. A redundant 

connection is also possible. In this case the ET 200iSP is con-

nected via two interface modules to two redundant 

PROFIBUS DP segments of a fault-tolerant automation system.
The IM 152 is plugged onto a special terminal module (to be or-

dered separately). The following terminal modules are available:
• TM-IM/EM60 terminal module for one interface module and 

one electronics module (with screw-type or spring-loaded ter-

minals)

• TM-IM/IM terminal module for two interface modules (for re-

dundant PROFIBUS DP connection)

Tasks of the IM 152 interface module
• Connection of ET 200iSP to the intrinsically-safe 

PROFIBUS DP

• Autonomous communication with the host automation system
• Preparation of data for the fitted electronic modules
• Saving of parameters of the electronics modules
• The IM 152 can assign a 20-ms time stamp to digital process 

signals.

The maximum address space of the interface module is 

244 bytes for inputs, and 244 bytes for outputs.

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The terminal module of the IM 152 (TM-IM/EM or TM-IM/IM) is 

connected directly next to the power supply unit on the DIN rail. 

The PROFIBUS DP connection of the IM 152 is made using the 

standard Sub-D socket on the terminal module. The matching 

connection element we provide is a special terminating plug with 

selectable terminating resistance. The terminating resistance 

must be activated on the last ET 200iSP station of each 

PROFIBUS DP segment. 
Hot swapping of the IM 152 and the PROFIBUS connector is per-

missible under hazardous conditions.
A terminating module is provided together with the IM 152, and 

must be fitted at the right end of each ET 200iSP station following 

the last electronics module.
The IM 152 has a slot for micro memory cards (MMC). The firm-

ware can therefore be updated either via the PROFIBUS DP or 

using MMCs.
The PROFIBUS addresses can be set using DIL switches at the 

front which are protected by a cover.
LEDs on the front of the IM 152 signal the supply voltage, group 

faults, bus faults, the active IM with redundant operation, and the 

operating state of the fitted power supply modules. 

B) Subject to export regulations: AL: N, ECCN: EAR99H
For further accessories such as labeling strips or plates, see Catalog 

IK PI or the A&D Mall/CA 01 under "ET 200iSP distributed I/O".

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Order No.

incl. terminating module

for one IM 152 module and one 

electronics module
• TM-IM/EM60S (screw-type 

terminals)

B)

• TM-IM/EM60S (spring-loaded

terminals)

B)

for two IM 152 modules 

(redundant operation)

for connection of IM 152 to 

PROFIBUS DP with RS 485-iS 

transmission technology

B)

Isolating transformer for connec-

tion of PROFIBUS DP segments 

with RS 485 and RS 485-iS trans-

mission technologies

• 585 mm long, suitable for 

assembly of ET 200iSP in a 

650-mm wide wall housing

• 885 mm long, suitable for 

assembly of ET 200iSP in a 

950-mm wide wall housing

© Siemens AG 2007