Siemens S7-1200 vs Omron CP2E: Compact PLC Cross-Reference
The S7-1200 and the Omron CP2E compete for the same machine: a small 24 VDC controller with built-in Ethernet, priced for OEM volume. If you are standardising on one ecosystem, or maintaining a machine that uses the other, this page maps the functional equivalents side by side.
Both families are compact controllers with onboard I/O, an Ethernet port for programming and Modbus-style messaging, and expansion for a modest number of additional I/O points. The S7-1200 leans on PROFINET and signal boards that plug onto the CPU; the CP2E offers EtherNet/IP and side-mounted CP1W expansion units. At the same I/O count they are direct functional peers.
What does not transfer is the engineering. A TIA Portal project cannot be downloaded to a CP2E, and a CX-Programmer project cannot go the other way. The instruction sets, addressing models and software tools are unrelated, so any cross-brand move is a program rewrite with a wiring review, not a hardware swap.
Model mapping
| Competitor model | Omron equivalent class | What to check |
|---|---|---|
| S7-1211C (6 DI / 4 DO) | CP2E-N14DR-A / -D | Smallest class on both sides. CP2E relay (-DR) vs transistor (-DT) output suffix must match the load. |
| S7-1212C (8 DI / 6 DO) | CP2E-N20DR / -DT | Same I/O class. CP2E adds a second Ethernet port on -D variants. |
| S7-1214C (14 DI / 10 DO) | CP2E-N30DT-D | Closest built-in I/O count. S7 signal boards have no CP2E equivalent; use CP1W expansion instead. |
| S7-1215C (14 DI / 10 DO, 2-port Ethernet) | CP2E-N60DR-D | The most direct functional peer: dual Ethernet, larger I/O, expansion slots. |
| S7-1200 + SB signal board | CP2E + CP1W expansion units | Different philosophy: front-plug board vs side-mounted units. Check panel depth for CP1W. |
What we stock on the Omron side
We stock the CP2E range — CP2E-N20, N30, N40 and N60 variants in relay and transistor outputs — plus CP1W expansion I/O, the CJ platform for larger machines, and the NX series when the machine needs EtherCAT motion.
Related pages
Frequently asked questions
Can I load a TIA Portal program into an Omron CP2E?
No. TIA Portal targets Siemens instruction sets; the CP2E is programmed in CX-Programmer. The logic must be rewritten and the I/O addresses reassigned. Budget the migration as a software project, not a download.
Which Omron PLC is closest to the S7-1200?
For the compact class, the CP2E-N series — built-in Ethernet, 14 to 60 I/O points, CP1W expansion. If the application needs PROFINET, integrated motion or high-channel-count I/O, the comparison moves to the Sysmac NJ/NX1P2, which is a different price class.
Does the CP2E speak PROFINET?
Not natively — CP2E Ethernet covers EtherNet/IP and Modbus TCP. PROFINET on an Omron system requires a network master unit such as the CJ1W-PNT21 on a CJ rack, or an NX coupler on the Sysmac side. Tell us the required topology and we will confirm the architecture before you order.
We build on Siemens but one OEM machine arrives with Omron — can you supply it?
Yes. We stock CP2E, CJ and NX hardware and can quote the exact suffix from the machine's parts list. Send the model numbers and we confirm availability, or cross them to the current suffix if the machine is older.
Siemens, SIMATIC, S7 and TIA Portal are trademarks of Siemens AG; Omron, CP, CJ, NX, NB, NS, NA, Sysmac, S8VK, S8VS, S8FS, E2B, E2E, E3Z, E3FA, E3X and CP1W are trademarks of Omron Corporation. All trademarks are named for identification and cross-reference purposes only. Hengyixin Automation is an independent distributor, not affiliated with or authorised by any of these manufacturers.