Technical specifications   
8.2 Guidelines and declarations 
  SIMATIC IPC547D 
92  Operating Instructions, 06/2011, A5E03473780-01 
9ROWDJH
5HODWLYHKXPLGLW\
        
 >@
>N9@
 
①  Synthetic materials 
②  Wool 
③  Antistatic materials such as wood or concrete 
 
CAUTION 
 
Grounding measures 
There is no equipotential bonding without grounding. An electrostatic charge is not 
discharged and may damage the ESD. 
Protect yourself against discharge of static electricity. When working with electrostatic 
sensitive devices, make sure that the person and the workplace are properly grounded. 
 
Protective measures against discharge of static electricity    
●  Disconnect the power supply before you install or remove modules which are sensitive to 
ESD. 
●  Pay attention to good grounding: 
–  When handling electrostatical sensitive devices, make sure that persons, the 
workstation and devices, tools and packaging used are properly grounded. In this 
manner, you avoid static discharge. 
●  Avoid direct contact: 
–  As a general rule, do not touch electrostatic sensitive devices, except in the case of 
unavoidable maintenance work. 
–  Hold the modules at their edge so that you do not touch the connector pins or 
conductor paths. In this way, the discharge energy does not reach and damage the 
sensitive components. 
–  Discharge your body electrostatically before you take a measurement at a module. Do 
so by touching grounded metallic parts. Always use grounded measuring instruments.