Contents
Strategic Partner Links
Sepasoft - MES Modules
Cirrus Link - MQTT Modules
Resources
Knowledge Base Articles
Inductive University
Forum
IA Support
SDK Documentation
SDK Examples
Sepasoft - MES Modules
Cirrus Link - MQTT Modules
Knowledge Base Articles
Inductive University
Forum
IA Support
SDK Documentation
SDK Examples
There are two ways to create OPC tags.
Both of these methods require that you first have a device connection made.
The easiest and most common way to create Tags in Ignition is by dragging the tags from the OPC Browser into the Tag Browser window in the Designer.Now that you are in the Designer, a good first step is to create some Tags. You'll use these tags for realtime status and control and to store history with the Tags Historian. Tags are all configured in the Tag Browser panel.
If you have created a device in the earlier step, the easiest way to create some Tags is by dragging the tags from the OPC Browser.
Scroll HTML Exporter Ignore | |||||||||
---|---|---|---|---|---|---|---|---|---|
|
You can create OPC Tags manually when you can't find them by using the OPC Browser, or the device does not support browsing.
Scroll HTML Exporter Ignore | |||||||||
---|---|---|---|---|---|---|---|---|---|
|
In order to address individual bits in Ignition, you must create a separate OPC tag pointing directly to the specific bit in the PLC.
When the integer values that come from the OPC tags are a series of binary bits, it is then possible to address each bit. For example, an integer value can have a 16-bit binary representation as shown here:
Integer | Bit level representation | How it works |
---|---|---|
4096 | 0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0 | 212 = 4096 |
1025 | 1,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0 | 20 + 210 = 1025 |
Suppose a MicroLogix PLC is connected to a Gateway.
[MLX]B3:0
[MLX]B3:0/0
(for Micrologic, you can specify the bit as: 0/0 or 0.0. That is, with a slash/ or a period.)
[MLX]B3:0/0
has a value of 1 or a Boolean value of TrueScroll HTML Exporter Ignore | |||||||||
---|---|---|---|---|---|---|---|---|---|
|
Next_link |
---|