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Siemens 6ES7138-6CG00-0BA0 — Digital Output Modules

Siemens 6ES7138-6CG00-0BA0, ET 200SP 24V I/O, 1µs Jitter

MPN6ES7138-6CG00-0BA0
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Siemens SIMATIC ET 200SP, 6ES7138-6CG00-0BA0, 24V digital I/O module with counters, PWM, 15 mm wide, 58 mm deep.

$144.12Ref. price · indicative, final on quote
Siemens 6ES7138-6CG00-0BA0 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

6ES7138-6CG00-0BA0 — Outputs
ParameterValue
Digital outputs6
Output typeTransistor
6ES7138-6CG00-0BA0 — Electrical
ParameterValue
Rated value (DC)24 V
Output current, resistive load, max.10 kHz
Output current at signal "1" (rated)0.5 A; 0.1 A with High Speed output, observe derating
Output current, max. per circuit / per module0.6 A; 0.12 A with High Speed output, observe derating
Total output current per module, max.3.5 A; Observe derating
Permissible range, upper limit (DC)28.8 V
Permissible range, lower limit (DC)19.2 V
Output voltage at signal "1" (min.)23.2 V; L+ (-0.8 V)
Residual current at signal "0", max.0.5 mA
Power dissipation (typ.)1.5 W
Inductive shutdown voltage clamp-0.8 V
Load resistance, upper limit12 kΩ
Load resistance, lower limit48 Ω; 240 ohm with High Speed output
Isolation between channels and backplane busYes
Isolation test voltage707 V DC (type test)
6ES7138-6CG00-0BA0 — Protection & Diagnostics
ParameterValue
Short-circuit protectionYes; electronic/thermal
Reverse polarity protectionYes; against destruction
Diagnostics functionYes
Diagnostic alarmYes
Short-circuit response threshold (typ.)1.7 A with Standard output, 0.5 A with High Speed output
Short-circuit detectionYes
6ES7138-6CG00-0BA0 — Performance
ParameterValue
Output switching delay 0 to 1, max.1 µs; With High Speed output, 5 µs with Standard output
Output switching delay 1 to 0, max.1 µs; With High Speed output, 6 µs with Standard output
Switching frequency, lamp load, max.10 Hz
6ES7138-6CG00-0BA0 — Environmental
ParameterValue
Operating temperature, horizontal mount, max.60 °C; Observe derating
Operating temperature, horizontal mount, min.-30 °C
6ES7138-6CG00-0BA0 — Mechanical & Connection
ParameterValue
Cable length, unshielded, max.600 m; depending on load and cable quality
Cable length, shielded, max.1 000 m; depending on load and cable quality
Width15 mm
Height73 mm
Depth58 mm
Weight (approx.)45 g

Product details

The Siemens 6ES7138-6CG00-0BA0 is an ET 200SP digital I/O module designed for SIMATIC S7-1500 distributed systems. It mounts onto a BaseUnit type A0 and communicates via the backplane bus. The module provides 26 input bytes and 32 output bytes, with isochronous mode support for deterministic cycle times. Operates at 24 V DC with tolerance L+ (-0.8 V). The module width is 15 mm.

The module includes three counters and one PWM output, with a maximum jitter of 1 µs when using High Speed output. The counter inputs can handle 24 V pulse encoders and 2-wire sensors; signal threshold for “1” is +11 to +30 V, “0” is -5 to +5 V. This makes it a fit for high-speed counting or frequency measurement without a separate counter module. Outputs are parameterizable as standard or high speed, with rise/fall times as fast as 1 µs in high-speed mode. The module sinks or sources current (selectable) and includes short-circuit protection. Total power dissipation is 1.5 W typical, so panel cooling is not a concern even in a densely populated rack.

Frequently asked questions

What is the 24V specification on this module?

The module is rated 24 V DC with a tolerance of L+ (-0.8 V). That means the supply can drop up to 0.8 V below the nominal 24 V without affecting operation — useful for long cable runs.

What is the depth of 6ES7138-6CG00-0BA0?

The module depth is 58 mm. Width is 15 mm and height is 73 mm. It fits standard ET 200SP enclosures and DIN-rail layouts.

Can this module replace 6AG1123-2DB03-2AX0 without rewiring?

No. The 6AG1123-2DB03-2AX0 is a SIPLUS variant for harsh environments (extended temperature, coating) and uses a different BaseUnit type. Wiring may differ; check the specific application requirements before substituting.

MPN
6ES7138-6CG00-0BA0