SCADAPack_Vision10

What are SCADAPack Vision tags?

A “tag” is an identifying name, used by the SCADAPack Vision, given to each data point that is to be read from, or written to, the PLC.

There are two types of internal SCADAPack Vision registers: Data Registers and Retentive Registers.

Data Registers, (address range 0000 to 0127). Values contained in these registers reside in the SCADAPack Vision only. Data Register values are reset to zero upon Vision power-up.

There are four reserved Data Registers: D0124 to D0127.

D0124: The “While Showing Tasks” Data Register provides delays between the execution of tasks configured in the “While Showing Tasks” lists. Valid values are 0 to 255 in 20 mSec increments. For example, a 1 sec delay requires a value of 50 for D0124.
D0125: The “Global Tasks” Data Register provides delays between the execution of tasks configured in the “Global Tasks” list. Valid values are 0 to 255 in 20 mSec increments. For example, a 1 sec delay requires a value of 50 for D0125.
D0126: The “Read Alarm” Data Register provides delays between attempts to read configured alarms. Valid values are 0 to 255 in 20 mSec increments. For example, a 1 sec delay requires a value of 50 for D0126.
D0127: The “Read Data Blocks” Data Register provides delays between attempts to read blocks of data from the SCADAPack Vision and PLC. Valid values are 0 to 255 in 20 mSec increments. For example, a 1 sec delay requires a value of 50 for D0127.

Retentive Registers, (address range 0000 to 0999). Retentive Registers retain their values upon SCADAPack Vision power-up.

There are four types of external SCADAPack PLC data registers: Coil, Input Status, Input Registers and Holding Registers. Values contained in these registers are written to or read from the PLC.
- Coil (address range 00001 to 04089).
- Input status (address range 10001 to 14089)
- Input register (address range 30001 to 31024)
- Holding register (40001 to 49999).