Emerson Epsilon EP Drive 400518-01 Manual de instalación descargar pdf (Pagina 80)

Epsilon EP-P Drive and FM-3/4 Module Reference Manual

The Initial Value for each user bit is configured using a check box for the specific bit. To make the Initial Value “On” or

“Active”, simply select the check box for that bit. The default value for each User Bit will be “Off” or “Inactive”.

User Bits are configured on the User Bits view as shown in Figure 63.

User Bits may be accessed on the User Program. Several examples of this are shown below.

Bit.Raise_Table = ON

Wait For Bit.Vacuum_ON = OFF

Wait For Bit.RunPart_A OR Bit.RunPart_B OR Bit.RunPart_C

If (Bit.RunPart_A = ON AND Bit.Vacuum_ON = OFF) Then

Call Program.1

Endif

Bits are turned on by setting them equal to ON, TRUE, YES, SET, or ENABLE (not case sensitive), and can be deactivated

by setting them equal to OFF, FALSE, NO, CLEAR, or DISABLE. Setting an individual bit equal to 1 or 0 in a user program

will cause a red dot error. The Boolean values listed above must be used.

Figure 63: User Bits View

Adding and Deleting User Bits

User bits can be added or deleted in groups of 32-bits. Individual bits cannot be added or deleted. The default number of User

Bits available is 32. To add an additional 32 bits, simply click on the up arrow next to the “Number of Bit Registers” box at

the top of the User Bits view (see Figure 63).

To decrease the number of User Bits by 32, click on the down arrow next to the “Number of Bit Registers” box. When

decreasing the number of User Bits, it is always the last 32 bits in the list that will be eliminated.

User 32-bit Bit Register and User Bit Masking

When using different communications protocols (i.e. DeviceNet, Profibus, Modbus), it is often desirable to access groups of

User Bits in a single parameter, rather than having to access them individually. In the FM-3/4 module and Epsilon EP-P drive

it is possible to access 32 User Bits in a single parameter. This parameter is named BitRegister.#.Value. Because some of the

32 User Bits may be used by the program, and should not be modified from the network communications, it is possible to

“Mask Off” certain bits. Masking bits prevents them from being modified in the program when the 32-bit parameter is written

to.

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Emerson Epsilon EP Drive 400518-01 Manual de instalación Pagina 80