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WillSams/openplc_modbus_examples.json

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Node Red / OpenPLC / Modbus
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openplc_modbus_examples.json
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"initialize": "",
"finalize": "",
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{
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"x": 210,
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"wires": []
},
{
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{
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"showStatusActivities": true,
"showErrors": true,
"showWarnings": true,
"unitid": "1",
"dataType": "MHoldingRegisters",
"adr": "24",
"quantity": "8",
"server": "2dadfc00.5aa6a4",
"emptyMsgOnFail": true,
"keepMsgProperties": true,
"delayOnStart": false,
"startDelayTime": "",
"x": 310,
"y": 380,
"wires": [
[],
[]
]
},
{
"id": "890cc9ebc36e2fd4",
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"z": "feaffe784243c357",
"name": "For the following example, we'll assume a big-endian architecture. ",
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"x": 250,
"y": 20,
"wires": []
},
{
"id": "5b19f46aa91d08fa",
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"x": 200,
"y": 60,
"wires": []
},
{
"id": "899b077608b75088",
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"name": "6502 Status Register Example - NV0BDIZC",
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"y": 120,
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{
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"x": 120,
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"wires": []
},
{
"id": "c97934b62979bce3",
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"z": "8d032cedaac7f1a0",
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"x": 650,
"y": 200,
"wires": []
},
{
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"z": "8d032cedaac7f1a0",
"name": "V - Overflow - Set when arithmetic operation or compare results in an overflow value",
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"wires": []
},
{
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"y": 280,
"wires": []
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{
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"wires": []
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"wires": []
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"wires": []
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{
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"y": 440,
"wires": []
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{
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"y": 480,
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{
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"x": 580,
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[]
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"noerr": 0,
"initialize": "",
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"name": "Break Into 64-bit Chunks",
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"rateUnit": "s",
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"startDelayTime": "",
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"wires": []
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{
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"x": 160,
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},
{
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{
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}
],
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"crontab": "",
"once": true,
"onceDelay": "2",
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{
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"quantity": "1",
"server": "2dadfc00.5aa6a4",
"emptyMsgOnFail": true,
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"startDelayTime": "",
"x": 160,
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"wires": [
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[]
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{
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"noerr": 0,
"initialize": "",
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"x": 290,
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"wires": [
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{
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"topic": "",
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"showStatusActivities": true,
"showErrors": true,
"showWarnings": true,
"unitid": "1",
"dataType": "HoldingRegister",
"adr": "32",
"quantity": "1",
"server": "2dadfc00.5aa6a4",
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"keepMsgProperties": true,
"delayOnStart": false,
"startDelayTime": "",
"x": 280,
"y": 260,
"wires": [
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[]
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{
"id": "083a31158fb87418",
"type": "comment",
"z": "8d032cedaac7f1a0",
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"info": "",
"x": 180,
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"wires": []
},
{
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"x": 120,
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},
{
"id": "bda3446a1fd595b9",
"type": "comment",
"z": "7eb2d70e8ea91d6d",
"name": "6502 Status Register Example - NV0BDIZC",
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{
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"info": "",
"x": 90,
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"wires": []
},
{
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"type": "comment",
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"name": "N- Negative - Set when operation results in a negative value (bit 7 set)",
"info": "N\tV\t0\tB\tD\tI\tZ\tC",
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{
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{
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"wires": []
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{
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{
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{
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{
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{
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{
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{
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{
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},
{
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{
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"x": 160,
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{
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{
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{
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"showErrors": true,
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"unitid": "1",
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"server": "2dadfc00.5aa6a4",
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"x": 260,
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{
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],
"repeat": "2",
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"x": 90,
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"showWarnings": true,
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{
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"x": 260,
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"wires": []
},
{
"id": "093a704f35f02497",
"type": "comment",
"z": "7eb2d70e8ea91d6d",
"name": "in this example, we are simulating an 8-bit register by assigning ",
"info": "",
"x": 250,
"y": 60,
"wires": []
},
{
"id": "ae1286b7b1483d9f",
"type": "comment",
"z": "7eb2d70e8ea91d6d",
"name": "8 addresses as if they represent individual bits.",
"info": "",
"x": 200,
"y": 100,
"wires": []
}
]
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