SIMATIC S7-1500 digital input/output module, DI16x 24VDC BA, 16 channels in groups of 16, input delay typ. 3.2 ms input type 3 (IEC 61131), DQ16XDC 24V/0.5A BA: 16 channels in groups of 8: 4 A per group: the module supports the safety-oriented shutdown of