Siemens S5-155U System Manual page 191

CPU 928
Data blocks DB
Data blocks DX
Organization blocks OB
Integrated special function
organization blocks OB
Dimensions (w x h x d)
Weight
5 - 42
256, of which 253 are freely available
256, of which 253 are freely available
OB 1 to 39 (interfaces for operating system)
See Pocket Guide
40.64 x 233.4 x 160 mm
Approx. 1 kg
System Manual
C79000-B8576-C199-03