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What you need
The module
One BLOC 8 v2 running the power firmware, product ID 010020008. The e-paper front is part of the box: it is powered by the module and talks to it over an internal link, so there is nothing to order, address or wire for it.
Mounting, supply and the connector layout are in The hardware; the electrical ratings — what each output may carry, and the supply window — are in the product data. Nothing below replaces them.
The eight outputs
| Count | 8, each switching the module's own supply to its load |
| Level | switched fully off or fully on, or chopped for dimming — the chopping period is 10 ms |
| Feedback | the current in each output is measured, continuously |
| Protection | per output: a maximum current with a delay, and an optional minimum current for open-load detection. Both are settings, not fuses — see Reference — Bloc 8 power module |
Wire one circuit per output and keep the circuit's own protection where the boat's electrical design puts it: the firmware's trip is a supervision that switches an output off, not a substitute for a fuse.
Dimming chops the output. Only put a load on a dimming output if it tolerates being chopped — LED strips and incandescent lamps do, most motors, electronics and their power supplies do not. Dimming is off by default on every output.
The six digital inputs
Dry contacts. Each input has an internal pull-up and reads on when it is closed to ground: wire the contact between the input and the module's ground, nothing else. Float switches, door contacts, an existing hard-wired switch panel — anything that closes a circuit.
A change is reported on the bus as soon as it has been stable for a few acquisition cycles, so a bouncing contact does not fill the bus.
The three analog inputs
Voltage inputs, published as the voltage measured at the input, up to 5 V. Tank senders, temperature probes and pressure senders are the usual ones.
The module also carries a supply line for those sensors, switched by the EnAnalogPwr parameter (on by default). A sender wired to that line loses its supply if the parameter is turned off, and reads flat.
The MUXEN side
| Bus | the boat's MUXEN bus, 500 kbit/s |
| Termination | 120 Ω at each physical end of the bus, and nowhere else |
The module publishes and is commanded on that bus, and it is where the Brain reaches it to configure it, name its outputs and update it.
The e-paper front
| Pads | 8 numbered pads, one per output, plus two arrows to change page |
| Link | internal, to the module — no external wiring |
| Configuration | none of its own: it takes its instance number, its identity, the trip settings and the output names from the module |
The panel keeps the names it has been given through a power cut: they are stored in the panel, not re-sent at every start. What it shows with no power at all is simply the last image it painted — e-paper does not go blank when the boat does.
