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SIMATIC S7 PLC

11 variants · Siemens

About the SIMATIC S7 PLC

AO Ctrl is an independent industrial PLC distributor and automation sourcing specialist for SIMATIC S7 PLC components — the parts engineering, repair and maintenance teams source here when lines face allocation constraints or urgent machine-down emergencies — with the physical condition of every unit verified up front. The Siemens SIMATIC S7 PLC series groups 11 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. Variants differ by supply voltage, output signal and mounting fastener, so you can match the exact supply voltage your application requires using the selection guide below.

Select a variant by

Supply voltage
24 V DC · 230 / 120 V AC, 50/60 Hz
Output signal
Optically isolated · Relay · Transistor
Mounting fastener
DIN Rail · Panel
Is profinet IO controller
No · Yes
Is profinet IO device
No · Yes
Terminal type
Screw · Screw Terminal
I/O channels
8 · 14
Current
0.4 A · 4 A

Variant comparison

Parameter6ES72121AF500XB06ES72121BG500XB06ES72121HF500XB06ES72121HG500XB06ES72141AH500XB06ES72141HF500XB0
Supply voltage24 V DC24 V DC24 V DC24 V DC24 V DC24 V DC
Output signalRelayRelayRelayRelayTransistorRelay
Mounting fastenerPanelDIN RailDIN RailDIN RailPanelDIN Rail
Is profinet IO controllerNoNo—NoNoNo
Is profinet IO deviceNoNo—NoYesNo
Terminal typeScrew—Screw Terminal—Screw—
I/O channels8———14—
Current——————

Request a quote on any SIMATIC S7 PLC part number and we confirm price, availability and lead time per line — including end-of-life, allocation-constrained, and machine-down urgent requirements.

All variants

19 products