RCX - PLC Remote Control Station (X-Series)
Don't want to use our New Concept in Control?
Our OCS product integrates the PLC and HMI in One Product. But there are times when the customer also requires a more traditional approach. RCX is the only X-Series product that does not include a display, yet keeps all the benefits of an Ethernet enabled OCS.

HECX116 / 251 main features:
- Constructed with a plastic chassis and supports Plastic SmartStack™ I/O for local I/O (up to 4 modules)
- Logic engine supports 16k / 256k logic, scanned at 0.2mS/K, with 32Kb of register memory and a Start/Stop pushbutton
- Features a MicroSD™ memory slot, one RS-232 port, one RS-485 port, one CsCAN port and a full 10/100 Ethernet port (HECX251 only)
- The Ethernet port supports HTTP web serving, FTP file transfers, SmartRail™ Ethernet I/O, Modbus/TCP Master/Slave, EGD and more
Control
The RCX has a ladder-based control engine that is powered by a processor with 256KB logic memory. This processor provides speed comparable to most mid-sized PLCs and is exactly the same as used in the XL6 family.
Input/Output
Because of the multiple ports on the RCX, it is capable of handling all Horner I/O expansions including: SmartStack™, SmartRail™ (built-in Ethernet Port), SmartStix™ and SmartBlock™ (CsCAN port) & SmartMod™ (Modbus serial).
The SmartStack™ I/O expansion system allows the RCX to use both digital and analog I/O boards. Up to 4 I/O boards may be stacked onto a single RCX unit, giving you flexibility with various I/O combinations. Together with Ethernet, CAN and Serial I/O capabilities RCX can use all I/O combinations possible.
Operator Interface
Designed to be used with or without a separate operator interface. Horner offers its TIU Range (or another OCS with a display) that can be easily configured to communicate with the RCX.
Networking
A benefit of the RCX is that it can connect to other Horner devices that use our CAN based protocol CsCAN (majority of products). This leaves the other communication ports (Ethernet and 2 serial ports) free to communicate with a device of your choice.
Relay Ladder Logic
Cscape™ software provides graphical ladder diagram programming (IEC-1131 compliant). Design engineers and end users will enjoy reduced development time with a straightforward approach to programming that integrates logic, and networking into a single solution operating in the Windows environments.
- Floating Point Math
- Motion Commands
- Serial Read and Write Commands
- and more
Tech Specs
RCX (HECX116 and HECX251)
| Performance | |
|---|---|
| Logic Scan Time |
0.2ms/k of logic |
| Controller Functions | |
| Built-In Logic Controller |
Yes |
| Relay Ladder Logic Programming |
Yes |
| PID AutoTuning |
Yes |
| Serial Read/Write |
Yes |
| Motion Commands |
Yes |
| Floating Point Math |
Yes |
| Communications | |
| Serial Ports (RS-232) |
One |
| Serial Ports (RS-232/RS-485) |
One |
| Modbus RTU Master/Slave |
Yes |
| CAN (CsCAN) |
Yes |
| Ethernet |
No Yes (CX251) |
| Memory | |
| Logic Memory |
16kB 256 kB (CX251) |
| Register Memory |
32 kB |
| Mass Memory |
MicroSD (up to 2GB) |
| Hardware Specifications | |
| Operating Voltage |
10 to 30VDC |
| Specifications Smart Stack I/O Compatible |
Yes |
| Real Time Clock |
Yes |
| Environmental and Agency Standards | |
| Temperature Range (Operating/Storage) |
-10 to 60C |
| Humidity (Non Condensing) |
5 to 95% |
| NEMA 4/12 IP 65 |
Yes |
| Physical Specifications | |
| Physical Dimensions |
161.7mm (6.37'') tall x 108.2mm (4.26'') wide x 31.4mm (1.23'') deep - SmartStack adds depth |
| Single SmartStack depth |
21mm (0.83'') |
| Communications Options | Ethernet (HECX251 only) |
| Speed |
10/100 |
| Number of Drops |
Unlimited |
| Distance |
Unlimited |
| Programming over network |
Yes |
| Peer to Peer |
Yes |
| Global Data |
Yes |
| Data Grams |
Yes |
| Ethernet Global Data |
Yes |
| Modbus RTU Master/Slave |
Yes |
Documentation
Accessories
To view a list of general accessories for Horner products, please click here.
