Contains information about Citect's runtime data structures. This area is very extensive and is initially a bit difficult to navigate. Currently there are about 50 tables of information - most of which are only relevant in specific circumstances and are otherwise not useful.
Syntax
Page Table [<Name>]
Where:
<Name>
Optionally the name of the table to display.
Use Page Up and Page Down keys to navigate through the table list. Use Up Arrow and Down Arrow keys to scroll the table data.
The MASTER_TABLE (Table 1) lists every table. The following tables are particularly useful:
Page Table Stats
This very useful table contains the cycle and execution times of every task that is running in Citect. The Execution time is the time taken for the entire task to run. The Cycle time is the time between when a task starts and when it starts again. The CPU is the percentage of total available CPU that the task is using (fast tasks often have 00 CPU).
The Citect 0 entry is the display task (graphics page updates) for the main window. That is, the total time taken for the Client to request data from the I/O Server, the I/O Server to get the data and send it back to the Client, and the Client to update the display.
Note: Citect 0 corresponds to the display task for the main window. Citect 1 for the first child window, Citect 2 for the third, and so on.
The CodeX entries correspond to Cicode tasks, where X is the handle of the task. You can find out which task corresponds to which handle by viewing Cicode table.
Note: There will be a Trend Acq entry for every different trend sampling period you have defined in your project.
Page Table Cicode
This table contains a list of Cicode tasks currently running. It contains the task name, handle and running state, as well as some statistics. CPU_Time is the total time that the task has run for - it is incremented each time the task runs. The CPU is the percentage of total available CPU that the task is using (fast tasks often have 00 CPU).
Page Table Users
This table displays a list of users currently logged into the system either locally or remotely.The Page table users contains the following columns:
| Field | Description |
|---|---|
| Name | The user name for a particular user |
| Last Login | Time at which user last logged in |
| Last Logout | Time at which user last logged out |
| Num connected | Number of references, both internal and external. |
| Default | Indicates whether user is the default user for the Citect process. Only one user can be a default user. |
| Logged In | Indicates if user is currently logged in. |
| Local User | Indicates if user is the local user of the current process. Only one user can be the current processes local user. |
Page Table Tran
This table shows a list of channels of communication between CitectSCADA components. A tran exists between exactly two separate components. A client tran initiates a connection, a server tran waits for a connection. Client and server in this context bears no relation to the type of component that owns the tran.
There are two modes for viewing the tran table: Standard and Verbose. The Standard mode shows information for every tran in a tabular format. It can be scrolled using the up/down arrow keys, the top row indicates the currently selected tran. Extended information for the selected tran can be viewed by toggling to Verbose mode by pressing the "v" key. Once in Verbose mode, the tran to display can be changed using the Page Up/Page Down keys.
In standard mode the tran table contains the following columns:
| Field | Description |
|---|---|
| Name |
The name and type of communication channel truncated to 20 characters:
|
| Node |
Either the node to which the tran is connected, or the status of the connection:
|
| Type |
This is either:
|
| Mode |
This is either:
|
| Hnd | This value represents the handle number in the tran table of the record. |
| Cnt |
This value indicates the number of times the tran has established a connection. Specifically it counts the number of times the tran receives the MSG_OPEN message. This value has no meaning for local trans for which it remains 0. If the number is high, it can indicate that your network is dropping and then re-establishing connections. However, it could also mean that the server has been running for a long time and many clients have started and stopped, thereby closing and opening sessions. |
| Send | This value displays the number of messages that have been sent by the tran. |
| Rec | This value displays the number of messages that have been received by the tran. |
| Wait | This value represents the number of times the tran had to wait to get a buffer in order to send a message. |
| Stack |
This value indicates the protocol number. Historically, this incorporated the NetBIOS LanA numbers with the TCP/IP protocol stacks. However, NetBIOS support was removed for v7.0 while TCP/IP support was enhanced to include redundant Network Interface Cards (NIC). The Stack value displays an index (1-based) which indicates on which redundant IP address the server tran is listening or connected. Its value is only used for out-of-process TCP/IP server trans; it has no meaning for every other tran. |
| Service | This column displays the type of the service used by the tran (regardless of the tran mode). The valid services are Alarm, IO, Report and Trend. |
| State | This is the current state of the tran. Valid states are Online, Offline, Connecting (client trans only), Disconnecting, Listening (server trans only) and Disabled. |
| Login | The user login name for remote Tran connection. |
Page Table CSAtoPSI.Subs
Displays a list of client tag subscriptions.
See Also