总线模块55308详细介绍：

  MVK I/O COMPACT MODULE, METAL  Profibus DP, 8 multif.channels / 8 dig. In / Diag

 Digital inputs/outputs
DIO8 DI8
PROFIBUS 12 Mbit/s; M1
7/8", 5-pole, 2× max. 9 A
M12, 5-pole, A-coded
Connection cables are in
Housing fully potted.