Developed over several years, it is now the engine of our automation projects. It can be used as a PLC or intelligent interface with RS485 or WiFi communication. The system has easily configurable I / Os by adding or removing SMD components from the board, to best suit the user's wishes. These modules can be easily cascaded by connecting them to the same 485 bus for long distances or via the UART connection available at the screw terminal block for short distances. Pragmatic 1.1S is intended to be mounted by you in a 700 series BERNIC enclosure (code BE4269010702), with a cutout for the RS485 connector at the top. This enclosure will contain a base module for I / O and relays, a mains power supply module and a controller module. The base module also has an area where you can mount the components for a 24 to 6V buck power supply when you have an external, industrial, low power supply. The RS485 connection cable also contains wire for powering the other modules in the chain. The cable used is a simple patch cable with RJ45 connectors (screened version). The Y splitters available on the market will help you connect the data bus with each module or with HMI (human machine interface).

Packing List:

• Control board PLC_CB_1.2M based o ATMEGA328P
• Base board PLC_I/0_1.1S with 5 relays istalled.
• Mains Power supply PSU1.0
• 2x20 pin headers 2.54mm, 30mm height
• 2x20 female connector 2.54mm, 8mm height
• 1x6 pin headers 2.54mm for FTDI connection on controll board
• 2x3 pin headers 2.54mm for ICSP connection on controll board
• 2pcs. M2.5 mm, 30mm height Nylon studs
• 2pcs. Nylon M2.5mm nuts
• 2pcs. Nylon M2.5mm screws

Extra components needed ( not included):

• BERNIC enclosure code BE4269010702
• RJ45 straight connector (with LEDs or not) if you need RS485 communications
• Various SMD components depending on your project. Please consult the related documentation. The DNP in the schematic diagram means it is not mounted. It is up to you to assemble your component according to what you want.

Features:

• Up to 10, protected, filtered or buffered configurable I/Os
• 5pcs, 5A/230Vac, NO contact relays
• Up to 2, gain adjustable Operational Amplifiers for 4...20mA configurable inputs or other sensors.
• Up to 2, 0....10V outputs
• Internal, insulated , 6 watts mains power supply 90....250Vac to 12/6Vcc with available output screw connector for powering other low power circuits
• Non insulated RS485 driver with self ENABLE circuit, ready to be used with Arduino SerialPrint library
• ATMEGA328P or ESP32 wroom ( comming soon) controller board
• Arduino type FTDI connector on controller board for software debugging
• ATMEL ICSP connector on controller board for firmware programming
• Easy expandable if you need more I/Os
• 2 x 12 Screw connectors for up to 1.5 mm2 cross section wire
• DIN rail mounted enclosure available

Applications:

• Industrial automation
• Home automation systems
• Specific projects where the use of an industrial PLC is limited by price or I / O configurations
• Automatic garden watering systems

Specifications:

• Mains Voltage: 90....250Vac 50/60Hz ( 6W) (with PSU1.0 power supply module installed)
• Low voltage input: 13Vcc....24Vcc (with internal buck power supply components installed)
• Max. Outputs current (sink) from 24Vcc system power supply, ( not internal one!): 1...3A (with appropriate MOSFETs installed)
• Max. Outputs voltage: 24Vcc
• Max. Inputs voltage: 48Vcc (must adjust the internal divider resistors)

Connections:

• RJ45 connector for RS485 , +12/24Vcc, +6Vcc
• 2x12 industrial screw connectors for 1 mm2 cross section wire The photos show the kit, the assembled module, the final look and one of the products made with it: VibofoggX1 electric panel , fog generator for poultry farms disinfection.