西门子系列文档_et200sp_f-dq_4x24vdc_2a_pm_hf_manual_en-US_en-US.pdf,Digital output module ___ Preface F-DQ 4x24VDC/2A PM HF (6ES7136- 1 ___ Documentation guide 6DB00-0CA0) 2 ___ Product overview SIMATIC 3 _