I/O Attributes
- Last UpdatedNov 15, 2022
- 1 minute read
The following table describes the I/O Feature attributes.
|
Attribute |
Description |
Run-Time Access |
|---|---|---|
|
<Attribute>.ReadStatus |
Indicates the cause of any errors that have occurred when data is read from the target feedback reference (object and attribute). This is the Message Exchange status and not the status of the communication to external systems or devices such as Programmable Logic Controllers (PLCs). |
Read-Only |
|
<Attribute>.WriteStatus |
Indicates the cause of any errors when writing data to the target location (object and attribute), or, in the case where that location is in a DeviceIntegration Object, the actual field I/O status. This status is the Message Exchange status and, when OutputDest is a DeviceIntegration Object, the status of the communication to external systems or devices such as Programmable Logic Controllers (PLCs). |
Read-Only |
|
<Attribute>.WriteValue |
Contains either the value that is about to be written to the destination address, or the last value that was written to the destination address. An object script can modify this value (for example, to do validation and/or clamping) prior to the output actually occurring. This value is unaffected by the value of the input source. |
Supervisory |