### ProductInstanceUri Examples

Source: https://reference.opcfoundation.org/specs/OPC-10000-21/5.2

Examples of globally unique resource identifiers for devices.

```text
urn:some-company.com:5ff40f78-9210-494f-8206-c2c082f0609c
urn:some-company.com:model-xyz:snr-16273849
```

--------------------------------

### Example Guid String

Source: https://reference.opcfoundation.org/specs/OPC-10000-6/v1.05.07/full

An example of a Guid value formatted as a string.

```string
C496578A-0DFE-4B8F-870A-745238C6AEAE
```

--------------------------------

### Example ProductInstanceUri

Source: https://reference.opcfoundation.org/specs/OPC-30300/4.3

An example value for the org.opcfoundation.product_instance_uri attribute.

```string
"urn:some-company.com:2025-01:model-xyz:snr-16273849"
```

--------------------------------

### Guid Encoding Example

Source: https://reference.opcfoundation.org/specs/OPC-10000-6/v1.05.07/full

Illustrates the byte-level encoding of a Guid in a byte stream, showing its structure as defined in Table 2.

```text
Figure 5 illustrates how the _Guid_ "72962B91-FA75-4AE6-8D28-B404DC7DAF63" is encoded in a byte stream.
```

--------------------------------

### Shock Resistance Example

Source: https://reference.opcfoundation.org/specs/OPC-40400-1/full

Examples of shock resistance specifications from different standards.

```text
Shock resistance according to EN 60068-2-27: ≤ 100 g (981 m/s2)
IEC 60068-2-27:2008 - Half-sine of 15 or 5 g peak amplitude and a duration of 11 or 30 msec.
```

--------------------------------

### Example for the calculation of SPDU_ID_1, SPDU_ID_2 and SPDU_ID_3 (informative)

Source: https://reference.opcfoundation.org/specs/OPC-10000-15/v1.05.04/full

Figure 22 shows a concrete example of the calculation of SPDU_ID_1 , SPDU_ID_2 and SPDU_ID_3. The following input values were chosen for the calculation: SafetyBaseID is the GUID “72962B91-FA75-4AE6-8D28-B404DC7DAF63”, SafetyProviderID has the value 0xE0EA6B40, SafetyStructureSignature has the value 0xDE7329FD and the SafetyProviderLevel_ID is chosen as 0xDEAA9DEE (representing SIL 3).

```text
Figure 22 shows a concrete example of the calculation of _SPDU_ID_1_ , _SPDU_ID_2_ and _SPDU_ID_3_. The following input values were chosen for the calculation: _SafetyBaseID_ is the _GUID_ “72962B91-FA75-4AE6-8D28-B404DC7DAF63”, _SafetyProviderID_ has the value 0xE0EA6B40, _SafetyStructureSignature_ has the value 0xDE7329FD and the _SafetyProviderLevel_ID_ is chosen as 0xDEAA9DEE (representing _SIL_ 3).
```

--------------------------------

### OpenSecureChannel Response Example

Source: https://reference.opcfoundation.org/specs/OPC-30300/v1.00.0/a-2

This code snippet illustrates the use of the GTA API to prepare an OpenSecureChannel Response, including opening contexts, getting server certificates, and verifying data.

```c
gta_errinfo_t errinfo = 0;

char personality_name[] 
    = "urn:manufacturer.com:2024-10:myproduct:myserver_appid?"
      "cg=DefaultApplicationGroup&ct=Rsa2048&ix=1";
char profile[]
    = "org.opcfoundation.Aes256-Sha256-RsaPss";
char certificate_name = "my_server";
char trustlist_personality_name[]
    = "urn:manufacturer.com:2024-10:myproduct:myserver_appid?"
      "cg=DefaultApplicationGroup;
char trustlist_profile[]
    = "ch.iec.30168.basic.local_data_integrity_only";

gta_context_handle_t h_ctx = GTA_HANDLE_INVALID;
h_ctx = gta_context_open(
    h_inst,
    personality_name,
    profile,
    &errinfo);	

/* Get server certificate from personality attribute (optional) */

char cert_buffer[CERT_SIZE];
myio_obufstream_t ostream_cert = { 0 };
gta_personality_get_attribute(
    h_ctx,
    certificate_name,
    (gtaio_ostream_t*)&ostream_cert,
    &errinfo);
myio_close_obufstream(&ostream_cert, &errinfo);

/* Prepare OpenSecureChannel Response */

gta_context_handle_t h_ctx_seal = GTA_HANDLE_INVALID;
h_ctx_seal = gta_context_open(
    h_inst,
    trustlist_personality_name,
    trustlist_profile,
    &errinfo);

char trustlist_buffer[] = {…};
size_t trustlist_len = …;
myio_ibufstream_t istream_trustlist = { 0 };
myio_open_ibufstream(
    &istream_trustlist,
    trustlist_buffer, trustlist_len,
    &errinfo);
char seal_buffer[] = {…};
size_t seal_len = …;
myio_ibufstream_t istream_seal = { 0 };
myio_open_ibufstream(
    &istream_seal,
    seal_buffer, seal_len,
    &errinfo);
if (!gta_verify_data_detached(
    h_ctx_seal,
    (gtaio_istream_t*)&istream_trustlist,

```

--------------------------------

### Example 1: Torque (used in Rundown) Step that transitions when it reaches a configured Target Torque and the Angle is monitored.

Source: https://reference.opcfoundation.org/specs/OPC-40450-1/v1.01.0/full

This example shows the ResultValue for Torque and Angle when a step transitions based on reaching a target torque.

```text
ResultValue1 (Torque):
MeasuredValue = 3.01
TargetValue = 3.0
ResultEvaluation = OK
ValueTag = EXIT_TRIGGER
HighLimit = 6.0
EngineeringUnits = Newton Metre
ResultValue2 (Angle):
MeasuredValue = 360
ResultEvaluation = OK
ValueTag = EXIT
LowLimit = 45
HighLimit = 400
EngineeringUnits = Degree
```