Channel-Specific Frames ($P_Chbfr, $P_Ubfr) - Siemens SINUMERIK 828D Programming Manual

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Channel-specific frames ($P_CHBFR, $P_UBFR)

Settable frames or basic frames can be read and written by an operator action or from the

● via the parts program, or

● via the operator panel interface.

The fine offset can also be used for global frames. Suppression of global frames also takes

place, as is the case with channel-specific frames, via

Machine manufacturer

The number of basic frames can be configured in the channel via MD 28081

MM_NUM_BASE_FRAMES. The standard configuration is designed for at least one basic

frame per channel. A maximum of eight basic frames are supported per channel. In addition

to the eight basic frames, there can also be eight NCU-global basic frames in the channel.

Channel-specific frames

System variable

frame is written, the chained total basic frame is not activated until the execution of a

frame on HMI or PLC. These frame variables are saved by the data backup.

First basic frame in the channel

The basic frame with field device 0 is not activated simultaneously when writing to the

so that the system variable is compatible with older versions. If there is no channel-specific

basic frame, an alarm is issued at read/write: "Frame: instruction not permissible".

Job planning

Programming Manual, 07/2010, 6FC5398-2BP40-0BA0

can be used to read and write the basic frames. When a basic

instruction. The variable is used primarily for storing write operations to the basic

variable, but rather activation only takes place on execution of a

instruction. The variable can also be read and written in the program.

is identical to

Coordinate transformation (FRAMES)

. One basic frame always exists in the channel by default,

5.7 NCU global frames

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