Digital output modules switch 24 V DC or 230 V AC voltages in the plant and thus transfer internal signals from the PLC to the plant. Solenoid valves, DC contactors, and indicator lights can be connected.

High Feature output modules feature configurable parameters and diagnostic functions and can thus be freely adapted to the respective process requirements.

Low-cost 25 mm wide output modules do not have settable parameters or diagnostic functions and can therefore be integrated very easily into the engineering. They are recommended for use in locations where only very few input channels are necessary or under conditions of use in which a high number of channels must be implemented in a very limited space.

Both module types can be used side by side in one station as required. Standardized features and shared system accessories guarantee easy handling.

The following digital output modules with a width of 35 mm are available:

• DQ 16x24VDC/0.5A HF;
  Digital output module with 16 channels 24 V DC / 0.5 A (transistor); two potential groups; 4 A per group; parameterizable diagnostics; parameterizable substitute values for the outputs; integrated switching cycle counter for connected actuators such as contactors or solenoid valves, safety-related load group disconnection via an external safety relay according to SILCL 2
• DQ 32x24VDC/0.5A HF;
  Digital output module with 32 channels 24 V DC / 0.5 A (transistor); four potential groups; 4 A per group; parameterizable diagnostics; parameterizable substitute values for the outputs; integrated switching cycle counter for connected actuators such as contactors or solenoid valves, safety-related load group disconnection via an external safety relay according to SILCL 2
• DQ 8x24VDC/2A HF;
  Digital output module with 8 channels 24 V DC / 2 A (transistor); one potential group; 8 A per group; parameterizable diagnostics; parameterizable substitute values for the outputs; option of using two channels for pulse width modulation (PWM) up to 500 Hz; integrated switching cycle counter for connected actuators such as contactors or solenoid valves, safety-related load group disconnection via an external safety relay according to SILCL 2
• DQ 8x230VAC/2A ST (triac);
  Digital output module with eight outputs 230 V AC / 2 A (triac); 8 potential groups; 2 A per group; parameterizable substitute value for the outputs
• DQ 8x230VAC/5A ST (relay);
  Digital output module with eight outputs 230 V AC / 5 A (relay); 8 potential groups; 5 A per group; parameterizable substitute value for the outputs; switching cycle counter for integrated relays
• DQ 16x230V/1A ST (triac);
  Digital output module with 16 outputs 230 V AC / 1 A (triac); 8 potential groups; 2 A per group; parameterizable substitute value for the outputs
• DQ 16x230V/2A ST (relay);
  Digital output module with 16 outputs 230 V AC / 2 A (relay); 8 potential groups; 4 A per group; parameterizable substitute values for the outputs; switching cycle counter for integrated relays
• DQ 16x24V…48VUC/125VDC/0.5A ST;
  Digital output module with 16 outputs 24 … 24 V UC bus 125 V DC / 0.5 A; 16 potential groups; 0.5 A per group; parameterizable substitute values for the outputs; safety-related load group disconnection via an external safety relay according to SILCL 2
• DQ 64X24VDC/0.3A BA;
  digital output module with 64 channels 24 V DC / 0.3 A (transistor); sourcing; four potential groups; 2 A per group
• DQ 64X24VDC/0.3A SRC BA;
  digital output module with 64 channels 24 V DC / 0.3 A (transistor); sourcing; four potential groups; 2 A per group

The following digital output modules with a width of 25 mm are available:

• DQ 16x24VDC/0.5A BA;
  digital output module with 16 channels 24 V DC / 0.5 A (transistor); sourcing output; two potential groups; 4 A per group
• DQ 32x24VDC/0.5A BA;
  digital output module with 16 channels 24 V DC / 0.5 A (transistor); sourcing; four potential groups; 4 A per group

Siemens Digital Modules S7-1500 Product Specifications: