Schneider Electric SpaceLogic RP-C-16A-F-230V
Schneider Electric · BACnet/IP room controller for DIN rail, powered from 230 V · RP-C-16A-F-230V
what it is
A programmable room controller of the EcoStruxure Building Operation system: it controls heating, ventilation and lighting of one or several rooms. The program is loaded by the integrator, and supervision is handled by an automation server, for example the AS-P.
The enclosure measures 180 × 110 × 64 mm and weighs 0.472 kg (data sheet SXWRCF16A10003). Material ABS/PC, IP20 protection, no display, one green status LED. Supply 230 V AC, up to 65 VA; a built-in transformer provides 24 V at terminals 4–5, up to 19 VA, for nearby devices. It neither accepts nor supplies PoE.
The height of 164 mm circulating in descriptions online is the dimension with the optional terminal covers. The body is 110 mm — anyone who plans a distribution board by the first number will leave 54 mm too much.
Inputs and outputs according to the data sheet:
- eight universal inputs/outputs (Ub1–Ub8),
- four semiconductor outputs DO1–DO4, 30 V, 2 A,
- three relays DO5–DO7, 250 V AC or 30 V DC, 4 A,
- one high-power relay DO8, 12 A resistive load.
In addition Bluetooth LE for commissioning from a mobile app (the data sheet gives a range of up to 100 m line of sight) and a clock with 7 days of backup.
what we read from it
On the network side the controller has only BACnet/IP on UDP 47808 (the port can be changed). There is no SNMP, web page or SSH — no TCP port is open. This is the correct state, not a firewall. Only silence on the BACnet port is a symptom of failure.
From the Device object we read:
- model — the
model-namefield readsRP-C-16A-F-230V, - firmware version and version of the program loaded by the integrator,
- system status: operational, non-operational, download in progress,
- object name — assigned by the integrator according to their own convention,
- the object list of the application, read one index at a time, because the whole list may not fit in a single response.
For application objects — temperatures, setpoints, relays — what matters are the status flags: alarm, fault, overridden and out-of-service. The last one says that the value does not come from the sensor. Which objects exist depends solely on the integrator's program.
Reading is read-only. A write to an output object or a setpoint changes the operation of the installation, and a write with a priority can persist and override the program.
how to recognize it on the network
- The MAC prefix
00:50:06is registered in the IEEE registry to TAC AB, not to Schneider Electric. A filter by manufacturer name will miss all the controllers. - AS-P and AS-B servers have the same prefix. The controller is distinguished by the absence of TCP services and the
model-namefield. - The label on the board reads
RP-C-16A-230V, whilemodel-namein BACnet isRP-C-16A-F-230V. Both describe the same model. - The RP-C-16B-F-230V has the same enclosure and the same edge layout. You cannot tell them apart by appearance —
model-nameor the "Model:" label on the board settles it.
From the factory the controller gets its address from DHCP. When there is no DHCP server, it assigns itself an address from the 169.254 link-local pool — a controller "lost" after a replacement should be looked for there as well.
chain and ring
The two Ethernet ports are a built-in switch. Both are equivalent, so controllers are connected one after another — in a chain or in a ring protected by RSTP, which blocks one port of the loop.
The effects are visible on the network switch side:
- Several or a dozen or so addresses
00:50:06on one switch port are a chain of controllers, not a loop or an error. - A drop in the number of these addresses on a port is a cut-off segment of the chain. The controller has no SNMP, so only the switch will show it.
- Each controller is an RSTP bridge, i.e. one hop. A ring broken in one place becomes a chain along its entire length. A ring that works can, after a single cable failure, exceed the reach of the RSTP tree — and only then cut off the controllers at the end.
The manufacturer's data sheet does not say whether the switch passes traffic after a loss of power to the controller. Safe assumption: a powered-off controller in a chain cuts off all those behind it.
port layout
No RJ45 port is visible from the front — only the terminal screw heads in two rows and a central strip with the LED. The drawing above is a to-scale diagram made from the manufacturer's dimensional drawing.
| terminals | purpose |
|---|---|
| 1–3 | 230 V supply: L, N, protective earth |
| 4–5 | 24 V AC output, 19 VA |
| 6–11 | semiconductor outputs DO1–DO4 with commons COM1 and COM2 |
| 12–15 | relays DO5–DO7 with common COM3 |
| 16–18 | relay DO8: normally closed, common, normally open |
| 19–30 | universal inputs/outputs Ub1–Ub8 with RET terminals |
Between terminals 5 and 6 there is the Reset hole. The Status LED lights in the right part of the central strip.
The top edge carries two RJ45 ports RS-485 Com A and Com B. The bottom edge, from the left: USB mini-B, Ethernet 1, Ethernet 2, USB-A, the wires of terminals 19–30 and the SMA connector of the Bluetooth antenna. The manufacturer gives the order but does not dimension the ports.
pitfalls
- The RS-485 ports look like Ethernet. They are also RJ45, but each supplies 24 V DC up to 3 W for room sensors. A network cable plugged into Com A will not get a link, and the device on the other end will receive a voltage it does not expect.
- Signal ground between controllers. Installation sheet: in hardware version 9 and earlier the RET terminals, USB, Ethernet and antenna shields must not be connected between controllers if no RET is connected to earth — there is a risk of electric shock. In newer versions they are not connected at all, because of the risk of damage. This also applies to shielded twisted pair in a chain.
- Bluetooth LE is a second configuration path, alongside the network and outside it.
what we cannot read
- Anything over SNMP — the controller does not have it. The switch shows the state of the ports and the chain.
- The RSTP bridge priority and the limit of controllers in a ring — the manufacturer refers to the hardware manual, which is not publicly available.
- The meaning of objects without the integrator's program — names and numbers from one installation do not carry over to another.
full parameter list
A full parameter list for this model is not here yet — the ones described above are those we have read and verified. A missing list does not mean the device exposes nothing more.