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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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In the PAC Control™ strategy:
1. Create the stPublicListOfStrategyTags table.
2. Immediately after Block 0 in the Powerup chart, add an OptoScript block.
3. In the OptoScript block, populate the table according to the OptoScript Syntax and tag naming standard.
4. Save, download, and run the strategy.
In Ignition:
1. Restart the groov EPIC and SNAP PAC Driver to refresh the tag list.
2. Browse the Opto 22 tags and use them in your project.

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Double-click the OptoScript block to open it.
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

Code Block

title	EXAMPLE

/*
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
32-bit integer	Int4	i32	i32.MyIntVariable	i32.MyIntVariable.rw
64-bit integer	Int8	i64	i64.MyLongVariable	i64.MyLongVariable.rw
32-bit float	Float4	f32	f32.MyFloatVariable	f32.MyFloatVariable.rw
32-bit integer as a SCADA Boolean	Boolean	i32b	i32b.MyIntVariable	i32b.MyIntVariable.rw
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) i32MyInteger[3-3] (same index)"
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
Discrete input or output state	Boolean	dio	dio.MyDiscretePoint	dio.MyDiscretePoint.rw
Bit-pick of a 32-bit integer variable	Boolean	i32bp	i32bp.My32BitIntegerVariable.31	i32bp.My32BitIntegerVariable.31.rw
Bit-pick of a 64-bit integer variable	Boolean	i64bp	i64bp.MyLongVariable.0	i64bp.MyLongVariable.0.rw
Bit-pick of a 32-bit integer table element	Boolean	i32tebp	i32tebp.My32BitIntegerTable[3].2	i32tebp.My32BitIntegerTable[3].2.rw
Bit-pick of a 64-bit integer table element	Boolean	i64tebp	i64tebp.My64BitIntegerTable[302].6	i64tebp.My64BitIntegerTable[302].6.rw

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To refresh the tag list, go to the Ignition Gateway Configure tab and select System > Modules. In the Cirrus Link Solutions section, restart the Opto 22 groov EPIC and SNAP PAC Driver module. When prompted, click Confirm.
Note: The tag names displayed in Ignition will be different but easily recognizable.
To browse tag values:
From the Ignition Gateway Configure tab: Select OPC Connections > Quick Client, and then expand the folders to find the tags from the Opto 22 device's tags.

From Ignition Designer's Design Mode: In the menu bar, click View > Panels, and then select OPC Browser. In the OPC Browser panel, expand the folders to find the Opto 22 device's tags.

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