西门子公司总裁前来参加会议上，SIMATIC第7节，以6ES7，模拟的投入模块

Digital input/output modules possess digital inputs/outputs for the automation system. Digital sensors and actuators can be connected via these modules.Use of the digital input modules offers the following advantages for users:Optimum adaptation; the number of inputs/outputs can be adapted to the respective task using optional combination of modules. Superfluous investments no longer existFlexible process connection; the automation system can be connected to the process using many different digital actuators and sensors SM 321 digital input module Digital inputs For connecting standard switches and two-wire proximity switches (BERO) 6ES7 321-7BH01-0AB0 16 input DC 24V 6ES7 321-1BH02-0AA0 16 input DC 24V 6ES7 321-1BH50-0AA0 16 input DC 24V 6ES7 321-1BL00-0AA0 32 input DC 24V 6ES7 321-1BH10-0AA0 16 input DC 24V 6ES7 321-1FH00-0AA0 16 input AC 120/230V 6ES7 321-1EL00-0AA0 32 input AC 120/230V SM 322 digital output module 6ES7 322-1BH01-0AA0 16 output DC 24V 0.5A 6ES7 322-1BH10-0AA0 16 output DC 24V 0.5A 6ES7 322-1BL00-0AA0 32 output DC 24V 0.5A 6ES7 322-8BF00-0AB0 8 output DC 24V 0.5A 6ES7 322-8BH00-0AB0 16 output DC 24V 0.5A 6ES7 322-1BF01-0AA0 8 output DC 24V 2A 6ES7 322-1FH00-0AA0 16 output AC 120/230V 1A 6ES7 322-1FL00-0AA0 32 output AC 120/230V 1A 6ES7 322-1HH01-0AA0 16 output relays 2A 6ES7 322-1HF01-0AA0 8 output relays 2A 6ES7 322-1HF10-0AA0 8 output relays 5A 6ES7 322-5HF00-0AB0 8 output relays 5A SM 323/SM 327 digital input/output modules 6ES7 323-1BH01-0AA0 8 input / 8 output DC 24V 6ES7 323-1BL00-0AA0 16 input / 16 output DC 24V 6ES7 327-1BH00-0AB0 8 DI / 8 DX