Siemens Welding System ST PCS 7 ユーザーズマニュアル

ET 200M distributed I/O

Siemens ST PCS 7 · November 2007

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The FM 355 / FM 355-2 modules can be used to implement con-

trol tasks outside the SIMATIC PCS 7 automation system. The 

modules have not only controller structures but also analog and 

digital channels, thus eliminating the need for additional mod-

ules to detect the setpoint/actual value or to control the actuator. 
On the one hand this reduces the work load for the CPU, on the 

other hand it enables backup mode with which the control sys-

tem continues to work even if the CPU fails. In this case the 

FM 355 module can be operated further with an OP operator 

panel (does not apply to FM 355-2). 
The operator panel is connected to the PROFIBUS DP fieldbus 

for this purpose. The CPU of the automation system can surren-

der input privilege to the operator panel in normal operation as 

well. The parameters that can be accessed with the operator 

panel are the setpoint and manipulated variable. If the FM 355 

module is operated from the operator panel, the automation sys-

tem reads back the values accessible from the operator panel 

after the input privilege is withdrawn or recovered again. Bump-

less continuation of the operations is thus assured. 
IM 153-2 High Feature interface modules are needed for the 

PROFIBUS DP connection when the FM 355 / FM 355-2 control-

ler modules are used in ET 200M.
PCS 7 blocks
CFC blocks with OS faceplates for all FM 355 modules are in-

cluded in the scope of supply of the standard SIMATIC PCS 7 li-

brary (part of engineering software). These blocks are integrated 

into the PCS 7 driver concept. This guarantees homogenous 

system integration (including automatic diagnostics messages).
Parameterization in HW-Config
A configuration package containing all parameterization masks 

required for configuring, parameterizing and commissioning is 

included in the scope of supply of the FM 355 controller mod-

ules.

:

In the case of the FM 355 C and FM 355 S controller modules, the chan-

nels are not electrically isolated from one another

IM 153-2

OP

FM-355 module 
(80 mm wide)

Standard
modules

Automation
system

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Order No.

With 4 analog outputs for 

4 continuous-action controllers
Required front connector: 

2 x 20-pin
Incl. multi-lingual configuration 

package, manual and Getting 

Started (German, English, 

French, Italian) on CD-ROM

With 8 digital outputs for 4 step or 

pulse controllers
Required front connector: 

2 x 20-pin
Incl. multi-lingual configuration 

package, manual and Getting 

Started (German, English, 

French, Italian) on CD-ROM

With 4 analog outputs for 

4 continuous-action controllers
Required front connector: 

2 x 20-pin
Incl. multi-lingual configuration 

package, manual and Getting 

Started (German, English, 

French, Italian) on CD-ROM

With 8 digital outputs for 4 step or 

pulse controllers
Required front connector: 

2 x 20-pin
Incl. multi-lingual configuration 

package, manual and Getting 

Started (German, English, 

French, Italian) on CD-ROM

© Siemens AG 2007