The 6ES7138-4DE01-0AB0: The module mounts on an ET 200SP base unit (BusAdapter). Depth is 52 mm—standard for this system, so it fits alongside other slices on the same rail. The 24 V supply powers the module and the digital outputs; note the L+ drop of 0.8 V—use that when calculating sensor supply tolerance at the terminals. Diagnostics report group errors via the red SF LED. Terminating resistor (330 Ω) is built in for the RS-422 line, which means you don't need an external terminator on the encoder cable. Unshielded cable runs up to 600 m; shielded up to 1 000 m for the counter input.
Siemens 6ES7138-4DE01-0AB0 ET 200SP Counter, 500 kHz
MPN6ES7138-4DE01-0AB0
Siemens ET 200SP counter module, 6ES7138-4DE01-0AB0, 24 V DC, 500 kHz input, 2 A outputs, 52 mm depth.
$180.59Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Digital outputs | 2 |
| Parameter | Value |
|---|---|
| Rated value (DC) | 24 V |
| Output current, resistive load, max. | 100 Hz |
| Output current at signal "1" (rated) | 2 A |
| Permissible range, upper limit (DC) | 28.8 V |
| Permissible range, lower limit (DC) | 20.4 V |
| Output voltage at signal "1" (min.) | L+ (-1 V) |
| Residual current at signal "0", max. | 0.5 mA |
| Power dissipation (typ.) | 2 W |
| Inductive shutdown voltage clamp | L+ (-50 to -60 V) |
| Isolation between channels and backplane bus | Yes |
| Parameter | Value |
|---|---|
| Short-circuit protection | Yes |
| Reverse polarity protection | Yes |
| Diagnostics function | Yes |
| Short-circuit response threshold (typ.) | 2.6 A to 4 A |
| Output can drive a digital input | Yes |
| Parameter | Value |
|---|---|
| Output switching delay 0 to 1, max. | 100 µs |
| Switching frequency, inductive load, max. | 2 Hz |
| Switching frequency, lamp load, max. | 10 Hz |
| Parameter | Value |
|---|---|
| Cable length, unshielded, max. | 600 m |
| Cable length, shielded, max. | 1 000 m |
| Width | 30 mm |
| Height | 81 mm |
| Depth | 52 mm |
| Weight (approx.) | 65 g |
Product details
Frequently asked questions
What is the supply voltage and how is it specified?
Rated 24 V DC, with L+ (-0.8 V) tolerance. That means the module powers from the 24 V rail but allows for a 0.8 V drop on the positive feed.
Will this module fit in place of a 6AG1123-2DB03-2AX0?
Yes, mechanically they are identical—both are 52 mm deep and 30 mm wide. Electrical specs for supply, counter inputs, and digital outputs match. The SIPLUS variant adds environmental ruggedization, but the base module is a drop-in replacement for standard environments.
What dimensions does the module have?
Depth 52 mm, width 30 mm, height 81 mm.
MPN
6ES7138-4DE01-0AB0