{
  "$schema": "https://raw.githubusercontent.com/nobrega8/mbmap-library/main/schema/mbmap-2.schema.json",
  "mbmap": 2,
  "vendor": "Moxa",
  "model": "ioThinx 45MR-1600 / 1601",
  "models": [
    "ioThinx 45MR-1600",
    "ioThinx 45MR-1600-T",
    "ioThinx 45MR-1601",
    "ioThinx 45MR-1601-T"
  ],
  "vendor_website": "moxa.com",
  "description": "16-channel digital input modules (45MR-1600 PNP sink, 45MR-1601 NPN source) for the ioThinx 4510 adapter",
  "revision": 3,
  "revised": "2026-11-11",
  "source": "Moxa, ioThinx 4510 Series User's Manual, version 6.2 (July 2024), Appendix A (Modbus/TCP slave rules and register lists)",
  "sources": [
    {
      "title": "ioThinx 4510 Series User's Manual",
      "version": "6.2",
      "date": "2024-07",
      "note": "Appendix A, 45MR-1600 (-T) registers"
    },
    {
      "title": "ioThinx 4510 Series User's Manual",
      "version": "6.2",
      "date": "2024-07",
      "note": "Appendix A, 45MR-1601 (-T) registers"
    }
  ],
  "notes": [
    "Addresses are relative to the module: the Modbus address on the 4510 is the slot's base address (set on the Modbus page of the 4510 web console: reload the default addresses or edit them) plus the relative address given here, separately for coils, discrete inputs, holding registers and input registers. Modbus/TCP port 502 on the ioThinx 4510 adapter.",
    "The manual lists every parameter with a length: in bits for coils and discrete inputs, and in 16-bit registers for the others. A DWORD or REAL value takes two registers; a REAL is a 32-bit float. Per-channel entries here follow that: for example 8 registers of DWORD for 4 channels are four 32-bit values.",
    "The manual does not state the word order of the 32-bit values; big is assumed. The function codes are 1, 5 and 15 for coils, 2 for discrete inputs, 3, 6 and 16 for holding registers and 4 for input registers.",
    "Each 'All' register is a bit mask with one bit per channel.",
    "The earlier version of this map read the counters as 64-bit values; the manual and its RESTful API list them as 32-bit (0 to 4294967295)."
  ],
  "protocol": "tcp",
  "port": 502,
  "unit_id": 1,
  "byte_order": "big",
  "word_order": "big",
  "address_base": 0,
  "x_status": "official",
  "registers": [
    {
      "name": "DI - Counter mode - status ch0",
      "group": "diCounterStatus",
      "area": "coil",
      "address": 0,
      "type": "bool",
      "access": "RW",
      "description": "DI - Counter mode - status (0: Pause, 1: Run)"
    },
    {
      "name": "DI - Counter mode - status ch1",
      "group": "diCounterStatus",
      "area": "coil",
      "address": 1,
      "type": "bool",
      "access": "RW"
    },
    {
      "name": "DI - Counter mode - status ch2",
      "group": "diCounterStatus",
      "area": "coil",
      "address": 2,
      "type": "bool",
      "access": "RW"
    },
    {
      "name": "DI - Counter mode - status ch3",
      "group": "diCounterStatus",
      "area": "coil",
      "address": 3,
      "type": "bool",
      "access": "RW"
    },
    {
      "name": "DI - Counter mode - clear overflow flag ch0",
      "group": "diCounterOverflowFlagClear",
      "area": "coil",
      "address": 4,
      "type": "bool",
      "access": "RW",
      "description": "DI - Counter mode - clear overflow flag (1: Clear)"
    },
    {
      "name": "DI - Counter mode - clear overflow flag ch1",
      "group": "diCounterOverflowFlagClear",
      "area": "coil",
      "address": 5,
      "type": "bool",
      "access": "RW"
    },
    {
      "name": "DI - Counter mode - clear overflow flag ch2",
      "group": "diCounterOverflowFlagClear",
      "area": "coil",
      "address": 6,
      "type": "bool",
      "access": "RW"
    },
    {
      "name": "DI - Counter mode - clear overflow flag ch3",
      "group": "diCounterOverflowFlagClear",
      "area": "coil",
      "address": 7,
      "type": "bool",
      "access": "RW"
    },
    {
      "name": "DI - DI mode - status ch0",
      "group": "diStatus",
      "area": "discrete",
      "address": 0,
      "type": "bool",
      "access": "R",
      "description": "DI - DI mode - status (0: OFF, 1: ON)"
    },
    {
      "name": "DI - DI mode - status ch1",
      "group": "diStatus",
      "area": "discrete",
      "address": 1,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - DI mode - status ch2",
      "group": "diStatus",
      "area": "discrete",
      "address": 2,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - DI mode - status ch3",
      "group": "diStatus",
      "area": "discrete",
      "address": 3,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - DI mode - status ch4",
      "group": "diStatus",
      "area": "discrete",
      "address": 4,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - DI mode - status ch5",
      "group": "diStatus",
      "area": "discrete",
      "address": 5,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - DI mode - status ch6",
      "group": "diStatus",
      "area": "discrete",
      "address": 6,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - DI mode - status ch7",
      "group": "diStatus",
      "area": "discrete",
      "address": 7,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - DI mode - status ch8",
      "group": "diStatus",
      "area": "discrete",
      "address": 8,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - DI mode - status ch9",
      "group": "diStatus",
      "area": "discrete",
      "address": 9,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - DI mode - status ch10",
      "group": "diStatus",
      "area": "discrete",
      "address": 10,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - DI mode - status ch11",
      "group": "diStatus",
      "area": "discrete",
      "address": 11,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - DI mode - status ch12",
      "group": "diStatus",
      "area": "discrete",
      "address": 12,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - DI mode - status ch13",
      "group": "diStatus",
      "area": "discrete",
      "address": 13,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - DI mode - status ch14",
      "group": "diStatus",
      "area": "discrete",
      "address": 14,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - DI mode - status ch15",
      "group": "diStatus",
      "area": "discrete",
      "address": 15,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - mode ch0",
      "group": "diMode",
      "area": "discrete",
      "address": 16,
      "type": "bool",
      "access": "R",
      "description": "DI - mode (0: DI, 1: Counter)"
    },
    {
      "name": "DI - mode ch1",
      "group": "diMode",
      "area": "discrete",
      "address": 17,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - mode ch2",
      "group": "diMode",
      "area": "discrete",
      "address": 18,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - mode ch3",
      "group": "diMode",
      "area": "discrete",
      "address": 19,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - mode ch4",
      "group": "diMode",
      "area": "discrete",
      "address": 20,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - mode ch5",
      "group": "diMode",
      "area": "discrete",
      "address": 21,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - mode ch6",
      "group": "diMode",
      "area": "discrete",
      "address": 22,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - mode ch7",
      "group": "diMode",
      "area": "discrete",
      "address": 23,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - mode ch8",
      "group": "diMode",
      "area": "discrete",
      "address": 24,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - mode ch9",
      "group": "diMode",
      "area": "discrete",
      "address": 25,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - mode ch10",
      "group": "diMode",
      "area": "discrete",
      "address": 26,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - mode ch11",
      "group": "diMode",
      "area": "discrete",
      "address": 27,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - mode ch12",
      "group": "diMode",
      "area": "discrete",
      "address": 28,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - mode ch13",
      "group": "diMode",
      "area": "discrete",
      "address": 29,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - mode ch14",
      "group": "diMode",
      "area": "discrete",
      "address": 30,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - mode ch15",
      "group": "diMode",
      "area": "discrete",
      "address": 31,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - Counter mode - overflow flag ch0",
      "group": "diCounterOverflowFlag",
      "area": "discrete",
      "address": 32,
      "type": "bool",
      "access": "R",
      "description": "DI - Counter mode - overflow flag (0: Normal, 1:"
    },
    {
      "name": "DI - Counter mode - overflow flag ch1",
      "group": "diCounterOverflowFlag",
      "area": "discrete",
      "address": 33,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - Counter mode - overflow flag ch2",
      "group": "diCounterOverflowFlag",
      "area": "discrete",
      "address": 34,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - Counter mode - overflow flag ch3",
      "group": "diCounterOverflowFlag",
      "area": "discrete",
      "address": 35,
      "type": "bool",
      "access": "R"
    },
    {
      "name": "DI - Counter mode - value ch0",
      "group": "diCounterValue",
      "area": "holding",
      "address": 0,
      "type": "uint32",
      "access": "RW",
      "description": "DI - Counter mode - value"
    },
    {
      "name": "DI - Counter mode - value ch1",
      "group": "diCounterValue",
      "area": "holding",
      "address": 2,
      "type": "uint32",
      "access": "RW"
    },
    {
      "name": "DI - Counter mode - value ch2",
      "group": "diCounterValue",
      "area": "holding",
      "address": 4,
      "type": "uint32",
      "access": "RW"
    },
    {
      "name": "DI - Counter mode - value ch3",
      "group": "diCounterValue",
      "area": "holding",
      "address": 6,
      "type": "uint32",
      "access": "RW"
    },
    {
      "name": "DI - Counter mode - status (all channels)",
      "group": "diCounterStatusAll",
      "area": "holding",
      "address": 8,
      "type": "uint16",
      "access": "RW",
      "description": "DI - Counter mode - status (0: Pause, 1: Run); bit n is channel n"
    },
    {
      "name": "DI - Counter mode - clear overflow flag (all channels)",
      "group": "diCounterOverflowFlagClearAll",
      "area": "holding",
      "address": 9,
      "type": "uint16",
      "access": "RW",
      "description": "DI - Counter mode - clear overflow flag (1: Clear); bit n is channel n"
    },
    {
      "name": "DI - DI mode - status (all channels)",
      "group": "diStatusAll",
      "area": "input",
      "address": 0,
      "type": "uint16",
      "access": "R",
      "description": "DI - DI mode - status (0: OFF, 1: ON); bit n is channel n"
    },
    {
      "name": "DI - Counter mode - overflow flag (all channels)",
      "group": "diCounterOverflowFlagAll",
      "area": "input",
      "address": 1,
      "type": "uint16",
      "access": "R",
      "description": "DI - Counter mode - overflow flag (0: Normal, 1:; bit n is channel n"
    },
    {
      "name": "DI - mode (all channels)",
      "group": "diModeAll",
      "area": "input",
      "address": 2,
      "type": "uint16",
      "access": "R",
      "description": "DI - mode (0: DI, 1: Counter); bit n is channel n"
    }
  ]
}