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Click here for troubleshooting tips.
The Opto 22 groov EPIC and SNAP PAC Driver module can scan specific tags. This method offers the best performance but requires setup in PAC Control.
To scan all tags, see Opto 22 groov EPIC and SNAP PAC Driver Module Configuration.
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For each tag to be scanned, create a string element following the OptoScript Syntax and tag naming standard.
IMPORTANT: Index number 0 (zero) must be the last item initialized in the OptoScript block
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/* If the tag begins with a ' or a /, the tag is ignored. NOTES: - All tags are readable. Use the .rw attribute to write to a tag. - Important! Initialize the first table element (at Index 0) lastLAST. (becauseThis a blank string in Index 0 tells the driver that the string table has not yet been initialized)indicates to the driver that all elements in stPublicListOfStrategyTags have been initialized. - If the tag begins with a ' or a /, the tag is ignored. */ stPublicListOfStrategyTags[0] = ""; stPublicListOfStrategyTags[1] = "f32.MyFloat.rw"; stPublicListOfStrategyTags[2] = "i32.MyInt32.rw"; stPublicListOfStrategyTags[3] = "i64.MyInt64.rw"; stPublicListOfStrategyTags[4] = "s.MyString.rw"; /* Use "t" for up and down timers. Timers are read-only.*/ stPublicListOfStrategyTags[5] = "t.MyUpOrDownTimer"; stPublicListOfStrategyTags[6] = "i32b.MyInt32UsedAsBoolean.rw"; /* For tables, enter the element's index or an index range in brackets. For example, "i32t.MyInt32Table[0].rw" or "i32t.MyInt32Table[0-0].rw" */ stPublicListOfStrategyTags[7] = "i32t.MyInt32Table[0-9].rw"; stPublicListOfStrategyTags[8] = "i64t. MyInt64Table[0-20].rw"; stPublicListOfStrategyTags[9] = "f32t.MyFloatTable[10-19].rw"; stPublicListOfStrategyTags[10] = "st. MyStringTable[0-9].rw"; stPublicListOfStrategyTags[11] = "dio.MyDiscretePoint"; stPublicListOfStrategyTags[12] = "aio. MyAnalogPoint.rw"; /* Use single-element table tags (i32te, i64te, f32te, stte) only with a single index. For a range, use table element tags (i32t, i64t, f32t, st). */ stPublicListOfStrategyTags[13] = "i32te.MyInt32TableElement[5].rw"; stPublicListOfStrategyTags[14] = "i32tebp.MyInt32TableElementBitPick[9].2.rw"; stPublicListOfStrategyTags[15] = "i64tebp. MyInt64TableElementBitPick[5].8.rw"; stPublicListOfStrategyTags[16] = "i32bp.MyInt32BitPick.1.rw"; // Remember, initialize index 0 last! stPublicListOfStrategyTags[0] = "dio.MyDiscretePointWrite.rw"; |
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Data type description | Ignition data type | Data type code | Example tag name for OptoScript block | Example tag name for OptoScript block (writeable tag) | Notes |
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32-bit integer | Int4 | i32 | i32.MyIntVariable | i32.MyIntVariable.rw |
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64-bit integer | Int8 | i64 | i64.MyLongVariable | i64.MyLongVariable.rw |
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32-bit float | Float4 | f32 | f32.MyFloatVariable | f32.MyFloatVariable.rw |
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32-bit integer as a SCADA Boolean | Boolean | i32b | i32b.MyIntVariable | i32b.MyIntVariable.rw |
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String | String | s | s.MyStringVariable | s.MyStringVariable.rw | PAC Controllers support only 7-bit ASCII |
Up or Down timer | Float4 | t | t.MyUpOrDownTimer | Not applicable | Timers are only read-only |
32-bit integer table element as a SCADA int4 | Int4 | i32te | i32te.My32BitIntegerTable[3] | i32te.My32BitIntegerTable[3].rw | Used only with a single index. Synonymous with i32t. |
32-bit integer table | See i32te. | i32t | i32t.My32BitIntegerTable[0-9] | i32t.My32BitIntegerTable[0-9].rw | To get individual table elements, use the stPublicListOfStrategyTags table to scan for specific tags. i32tMyInteger[11-9] (backward index range) |
64-bit integer table element as a SCADA int8 | Int8 | i64te | i64te.My64BitIntegerTable[302] | i64te.My64BitIntegerTable[302].rw | Used only with a single index. Synonymous with i64t. |
64-bit integer table | See i64te. | i64t | i64t.My64BitIntegerTable[0-35] | i64t.My64BitIntegerTable[0-35].rw | To get individual table elements, use the stPublicListOfStrategyTags table to scan for specific tags. |
32-bit float table element as a SCADA float4 | Float4 | f32te | f32te.My32BitFloatTable[11] | f32te.My32BitFloatTable[11].rw | Used only with a single index. Synonymous with f32t. |
32-bit float table | See f32te. | f32t | f32.MyFloatTable[0-20] | f32.MyFloatTable[0-20].rw | To get individual table elements, use the stPublicListOfStrategyTags table to scan for specific tags. |
String table | See stte. | st | st.MyStringTable[0-32] | st.MyStringTable[0-32].rw | PAC Controllers support only 7-bit ASCII To get individual table elements, use the stPublicListOfStrategyTags table to scan for specific tags. |
String table element as a SCADA string | String | stte | stte.MyStringTable[6] | stte.MyStringTable[6].rw | PAC Controllers support only 7-bit ASCII. Used only with a single index. Synonymous with st. |
Analog input or output state | Float4 | aio | aio.MyAnalogPoint | aio.MyAnalogPoint.rw |
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Discrete input or output state | Boolean | dio | dio.MyDiscretePoint | dio.MyDiscretePoint.rw |
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Bit-pick of a 32-bit integer variable | Boolean | i32bp | i32bp.My32BitIntegerVariable.31 | i32bp.My32BitIntegerVariable.31.rw |
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Bit-pick of a 64-bit integer variable | Boolean | i64bp | i64bp.MyLongVariable.0 | i64bp.MyLongVariable.0.rw |
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Bit-pick of a 32-bit integer table element | Boolean | i32tebp | i32tebp.My32BitIntegerTable[3].2 | i32tebp.My32BitIntegerTable[3].2.rw |
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Bit-pick of a 64-bit integer table element | Boolean | i64tebp | i64tebp.My64BitIntegerTable[302].6 | i64tebp.My64BitIntegerTable[302].6.rw |
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