Data transmission through COM20, COM21

• COM20 (PROFIBUS module for 3VL circuit breakers)
  for ETU release with communication function
  Module for connecting the 3VL circuit breakers to the PROFIBUS DP, including switching function and Zone Selective Interlocking functionality, connection cable to ETU included in delivery of the ETU, length 1.5 m.
• COM21 (Modbus module for 3VL circuit breakers)
  for ETU release with communication function
  Module for connecting the 3VL to the Modbus RTU circuit breakers, including switching function and Zone Selective Interlocking functionality, connection cable to ETU included in delivery of the ETU, length 1.5 m.
• Connecting cable ETU – COM20/COM21
  for VL160 ... VL250, length 3 m
  for VL630 ... VL1600, length 3 m
  for VL400, length 3 m.
• Addressing plug for assigning the module addresses without using a PC/PG
  to COM20/COM21 through the system interface.
• Parameterization software powerconfig
  Parameterization, operation, monitoring and diagnostics of 3WL air circuit breakers with the software powerconfig, see "Software", "Configuring, visualizing and controlling with SENTRON".
  powerconfig is available free of charge at:
  http://support.automation.siemens.com/WW/view/en/22951684/133100
  You will find further information on the Internet at:
  http://www.siemens.com/sentron