This 6ES7138-6DB00-0BB1 is a 20 mm digital output module with 24 V outputs supporting pulse-train, PWM, and isochronous mode. Supply voltage is 24 V (L+ drop -0.8 V). Diagnostic alarms and short-circuit protection are integrated; the module is parameterizable for ON-delay, OFF-delay, and dithering (–) to match valve and actuator timing.
20 mm width and 73 mm height fit standard mounting rails; depth of 58 mm leaves clearance for wiring ducts. Typical power dissipation of 1.7 W keeps adjacent modules within derating limits without forced airflow.
Electrical characteristics
Outputs switch with a 0.8 µs max rise/fall time in high-speed mode, supporting PWM periods parameterized from 0.05 to 20 ms. Minimum load impedance is 12 Ω for standard output and 240 Ω for high-speed output; the module sinks or sources current and provides 24 bytes output data (12 per channel,).