To program this "shift register" you must first pull the BS0 line low on the DAQ_IF board. Expansion options allow NCD relay controllers to scale up to 256 channels. Note that the AQZ10 SSR has an optional socket. Single channel relay. The WD signal is pulsed (reset occurs on falling edge). PCB thickness: 1.6mm. The PPDO reset signal is held low for at least 10 msec (input signal to the DS1834, which causes a reset signal to be generated). This is a 12V 16-Channel Relay interface board, Be able to control various appliances, and other equipments with large current. Note that the PPRelay-12 and PPSSR-16 boards do not use the MISO, J238, and IRQ signals. This year I have upgraded tk solid state relays and have added an additional 16 channels. In particular, with the jump in this position, holding the WD_LATCH signal low does not force the SRCLR line low. To prevent this undefined operation, it's a good idea to always refresh the watchdog timer immediately prior to shifting out any data and checking the WD_LATCH value to ensure that the watchdog timer hasn't already timed out. Links to high-resolution versions of the pictures appear below each picture. In theory, the software has hung up and probably isn't shifting data to the PPDO connector. Note that you must transfer the H.O. Note that during the shift operation, the data on the TPIC6B595 output pins (controlling the relays) does not change until the rising edge of the BS0 signal. The PPSSR-16 has the following features: Bill of Materials (BOM) for the PPSSR-16 board: Note: If you only want a few PPSSR-16 PCBs, contact Plantation Productions (randy@plantation-productions.com) to see if there are any in stock. If you move the shift register clear selection jump to the SRCLR/WD position, SRCLR is a combination of the DS1834 RST output and the WD_LATCH line. (2) TPIC6B595 8-bit serial-in/parallel out high-current shift registers, (17) 2-pin screw terminals (5mm/0.2" centers), Optional: one set of horizontal 35mm DIN rail mounts for DAQ boards, Power is applied to the board (DS1834 power-on reset chip handles this). Size: 155 x 55 x 24 mm ( approximately 6.1 x 2.17 x 0.95 inch ). However it takes about 12mA to switch the solid state relay, so do check that your board can supply that amount of current from a digital output. Each relay can handle over 2000W, and the board operates via I2C, meaning you only need two pins to … Therefore, if you shift 48 bits onto the PPDO bus, the last 16 bits you shift will wind up on the first board in the daisy chain; the second 16 bits (the middle 16 bits) you shift in will wind up on the second board in the daisy chain; the first set of 16 bits you shift in wind up on the third board in the daisy chain. I have had this idea for a few months I thought of a great cheap 16 channel light controller it would use 3# 6 channel 5v dumb rgb controllers and 2# 8 channel sainsmart solid state relay boards. I use Seeed Studio Fusion PCD service (https://www.seeedstudio.com/fusion.html). The most … Because the PPDO connector carries high-frequency SPI bus signals, you should try to keep the connecting ribbon cables as short as possible. This control would not be able to dim the lights like a … While the reset line is low, the PPSSR-16 and PPSSR-16 boards will force the internal shift registers to all zero bits. If the jumper is on the SRCLR and RST pins, then the SRCLR line is only low while the DS1834 RST output (5V or 3.3V, depending on the DS1834SEL jumpers) is low. If the power supply drops more than 10% below the rated voltage (typically 5V in the DAQ system) then it forces a reset output. The STL files can be found here: PPSSR-16 DIN Rail Brackets 3D printer files. Numato’s URMC16 16 Channel USB Relay Module provides exceptional value for money. Output with resistive 240V 2A fuse. The correct setting depends upon your application. This board has eight on-board Solid State Relays which can switch up to 3A. If the watchdog timer times out and asserts the WD signal on the PPDO connector, the PPSSR-16 board will automatically put the output relays in a fail-safe mode by clearing the internal shift register and transferring their contents to the TPIC6B595 output latches. I have upgraded from last year when i used a Sainsmart 16 channel relay board. Good engineering practice suggests that you derate a device by 50%. ESP8266 and USB I2C Interface Modules are Also Available. By their design, solid-state relays offer a fair amount of isolation beween the relay circuit and the rest of the circuit (opto-isolation is used by the AQZ10 SSR). This pin controls the state of the TPIC6B595 shift register clear signal. In particular, note that even though the jumper is not in the RST/SRCLR position, a pulse on the WD_LATCH line will still reset the shift registers and clear the output pins. A wide variety of 16 channel relay board options are available to you, such as general purpose, pcb, and protective. They accomplish this by using infrared light as the ‘contact,’ a solid-state relay is really just an $8.99 ... #16. It can be controlled directly by Micro-controller (Raspberry Pi, Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic). Bare boards are $25 each plus shipping. Therefore 1A is a more reasonable choice the maximum current you should put through one of these relays. Top subscription boxes – right to your door, © 1996-2020, Amazon.com, Inc. or its affiliates. The PPSSR-16 board has 100 mil traces (top and bottom layers) from the relay contacts to the associated screw terminal pins. Discover over 33589 of our best selection of Ranking Keywords on AliExpress.com with top-selling Ranking Keywords brands. In particular, as long as you hold the WD_LATCH line low the PPSSR-16 will hold the SRCLR line low. If you want to ensure that the PPSSR-16 outputs remain in fail-safe mode (relays open) as long as the watchdog timer (on the DAQ_IF board) has not been reset, put the jumper in the SRCLR/WD position. The PPRelay-12 and PPSSR-16 boards are output-only devices, so the MISO (Master input, slave output) pin has no use. The MOSI (Master Out, Slave In -- the PPSSR-16 is a slave) signal coming in on the PPDO In connector is fed to the serial in pin on the first TPIC6B595 shift register. Note that "RelaySettings" is the SPISettings object created in the Teensy code to communicate with the SPI bus. The Grove - 8-Channel Solid State Relay is based on the high-quality G3MC202P module, which allows you to use a 5VDC to control MAX. The DS1834SEL jump is a 6-pin header on the board: There are always two jumpers installed on this header. Here is the Teensy 3.2 code that will toggle the reset line: Here is the Netburner code that will toggle the reset line: Note that DAQ system requirements state that the RESET line must be held low for at least 250 msec. Note that applying 5V to the DS1834 3.3V sense input will not damage the IC - all inputs (including the 3.3V sense input) are rated for 5V. The DS1834 is programmed with a 10% tolerance. The device has been designed to automate home or industrial electrical equipment. Likewise, these two boards don't generate any interrupts, so these boards don't use the IRQ line. Order) 2 YRS . Hardware Requirements Specifications (HRS), Hardware Inspection list (HI), Hardware Test Cases (HTC), Hardware Test Procedures (HTP), Hardware Design Description (HDD), and (reverse) Traceability Matrix (RTM) are available for the DAQ system, including this board. SPECIFICATION This item has been assembled, and electrical test passed. The relays themselves (AQZ10) are rated for 2A operation. 2 x Single channel solid state relay modules. " 3.3 ~ 5V : High state (relay ON). It has sixteen onboard 12V/ 24V DC relays that can switch up to 10A load. In theory, you could put as many boards in the daisy-chain as you like; however, TTL fanout and trace/ribbon cable length limit you to about 10 boards. You connect the first board in the daisy-chain directly to the PPDO connection on the DAQ_IF board: You daisy-chain additional boards (PPRelay-12 or PPSSR-16) by connecting the PPDO Out connector on one board to the PPDO In connector on the next board: The PPSSR-16 presents one TTL load to all the SPI bus signals. If you simply want to view the schematic on-line, you'll find that here: The DIN rails were created using AutoDesk's Fusion 360 (to produce STL files) and I personally print the results on a Lulzbot Taz6 3D printer using ABS filament (ABS is recommended for this job, PLA and PETG are a bit brittle). You accomplish this by programming the A0, A1, and A2 output pins (on the DAQ_IF) with zeros and then activate the SPI chip select line. These pins are polarized and have (+) and (-) terminals (the relays are DC solid state relays). Here's some sample Teensy 3.2 code that will refresh the watchdog timer: Here is the Netburner MOD54415 code that will refresh the watchdog timer: Open Hardware design based on Creative Commons 4.0 license, Single 5V power supply input connector (screw terminals), 16 independent digital output channels featuring solid-state relays (rated at 2 amps each, though the board allows 1A per relay), 16 LEDs indicate the current state of each output channel, 16 two-pin screw terminal output connectors with open/closed contacts, Each channel is completely isolated from the output control circuit, (2) PPDO-compatible ribbon cable connectors (10-pin) -- one for input and one for output (to support daisy-chaning), Schematic and board layout are available in Eagle format, DIN rail mounts allow the board to be optionally mounted in a horizontal orientation on a 35mm DIN rail, DIN rail brackets are available in .STL format for 3D-printing. 0 ~ 2.5V : Low state (relay … Finally, you set the BS0 line high (by setting the SPI chip select line high or by writing all ones to the A0, A1, and A2 output lines). 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