{
  "$schema": "https://raw.githubusercontent.com/nobrega8/mbmap-library/main/schema/mbmap-2.schema.json",
  "mbmap": 2,
  "vendor": "LC Technology",
  "model": "LC-Modbus-8R-D7",
  "models": ["LC-Modbus-8R-D7"],
  "description": "8-CH Modbus RTU relay + optocoupler input module, RS485/5V TTL, 4800/9600/19200 baud. FC05/FC01: relay ch1-8 at coil addr 0-7 (0xFF00=on/0x0000=off). FC02: optocoupler input ch1-8 at discrete input addr 0-7. FC03 addr 0: device address R (1-255). FC03 addr 1000: baud rate status (2=4800,3=9600,4=19200). FC10 addr 1001: set baud rate. FC10 relay N flash mode: base addr=3+(N-1)*5, 2 regs (word1: 0x0004=flash-OFF, 0x0002=flash-ON; word2=delay×0.1s).",
  "revision": 2,
  "vendor_website": "http://www.chinalctech.com",
  "source": "Omni Console device library (OmniCoreST), modbus-library/lctech-8ch-relay.toml; Source: lctech-modbus-rtu-relay-8ch-register-table.html (chinalctech.com product page). Not verified against the manufacturer's documentation",
  "notes": [
    "LC Technology LC-Modbus-8R-D7.",
    "Converted automatically from the Omni Console device library (OmniCoreST).",
    "Not verified against the manufacturer's documentation.",
    "Corrections are welcome (CONTRIBUTING.md). Change x_status once this table has been checked against the manual.",
    "| LC Technology LC-Modbus-8R-D7 8-Channel Modbus RTU Relay Module",
    "|",
    "| Source: lctech-modbus-rtu-relay-8ch-register-table.html (chinalctech.com product page)",
    "| Protocol: Modbus RTU; RS485 or 5V TTL UART; 4800/9600/19200 baud, default 9600",
    "| Device address: 1-255, default 255 (0xFF); address 0x00 = broadcast",
    "|",
    "| FC05 (Write Single Coil): relay 1-8 at coil addresses 0x0000-0x0007 (0xFF00=ON, 0x0000=OFF)",
    "| FC0F (Write Multiple Coils): addr 0x0000, count 8; data byte bit0-7 = relay 1-8",
    "| FC01 (Read Coils): addr 0x0000, count 8; returns relay 1-8 state (bit0=relay1)",
    "| FC02 (Read Discrete Inputs): addr 0x0000, count 8; optocoupler 1-8 state (bit0=ch1)",
    "| FC03 (Read Holding Registers): device address (addr 0), baud rate status (addr 1000)",
    "| FC10 (Write Multiple Registers): device address (addr 0), baud rate (addr 1001),",
    "| relay flash/delay mode (addr 3/8/13/18/23/28/33/38, 2 regs each)",
    "|"
  ],
  "byte_order": "big",
  "word_order": "big",
  "address_base": 0,
  "x_status": "unofficial",
  "x_origin": "omniconsole",
  "registers": [
    {"name": "Device address R/W (range 1-255; default 255; write via FC10 from broadcast addr 0)", "area": "holding", "address": 0, "type": "uint16", "access": "R"},
    {"name": "Relay 1 flash mode (FC10 W: 0x0004=flash-OFF 0x0002=flash-ON)", "area": "holding", "address": 3, "type": "uint16", "access": "R"},
    {"name": "Relay 1 flash delay (×0.1s; max 0xFFFF=6553.5s)", "area": "holding", "address": 4, "type": "uint16", "access": "R"},
    {"name": "Relay 2 flash mode (FC10 W: 0x0004=flash-OFF 0x0002=flash-ON)", "area": "holding", "address": 8, "type": "uint16", "access": "R"},
    {"name": "Relay 2 flash delay (×0.1s)", "area": "holding", "address": 9, "type": "uint16", "access": "R"},
    {"name": "Relay 3 flash mode (FC10 W: 0x0004=flash-OFF 0x0002=flash-ON)", "area": "holding", "address": 13, "type": "uint16", "access": "R"},
    {"name": "Relay 3 flash delay (×0.1s)", "area": "holding", "address": 14, "type": "uint16", "access": "R"},
    {"name": "Relay 4 flash mode (FC10 W: 0x0004=flash-OFF 0x0002=flash-ON)", "area": "holding", "address": 18, "type": "uint16", "access": "R"},
    {"name": "Relay 4 flash delay (×0.1s)", "area": "holding", "address": 19, "type": "uint16", "access": "R"},
    {"name": "Relay 5 flash mode (FC10 W: 0x0004=flash-OFF 0x0002=flash-ON)", "area": "holding", "address": 23, "type": "uint16", "access": "R"},
    {"name": "Relay 5 flash delay (×0.1s)", "area": "holding", "address": 24, "type": "uint16", "access": "R"},
    {"name": "Relay 6 flash mode (FC10 W: 0x0004=flash-OFF 0x0002=flash-ON)", "area": "holding", "address": 28, "type": "uint16", "access": "R"},
    {"name": "Relay 6 flash delay (×0.1s)", "area": "holding", "address": 29, "type": "uint16", "access": "R"},
    {"name": "Relay 7 flash mode (FC10 W: 0x0004=flash-OFF 0x0002=flash-ON)", "area": "holding", "address": 33, "type": "uint16", "access": "R"},
    {"name": "Relay 7 flash delay (×0.1s)", "area": "holding", "address": 34, "type": "uint16", "access": "R"},
    {"name": "Relay 8 flash mode (FC10 W: 0x0004=flash-OFF 0x0002=flash-ON)", "area": "holding", "address": 38, "type": "uint16", "access": "R"},
    {"name": "Relay 8 flash delay (×0.1s)", "area": "holding", "address": 39, "type": "uint16", "access": "R"},
    {"name": "Baud rate status R (0x02=4800 0x03=9600 0x04=19200)", "area": "holding", "address": 1000, "type": "uint16", "access": "R"},
    {"name": "Baud rate set W (0x02=4800 0x03=9600 0x04=19200; write via FC10)", "area": "holding", "address": 1001, "type": "uint16", "access": "R"}
  ]
}