Rockwell-automation SB3000 Configuration and Programming Manual do Utilizador descarregar pdf (Página 68)

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SB3000 Drive Configuration and Programming

Figure 3.2 – Nth Scan Interrupts

Latch “every scan"

Output BInput A Run A

OutputA

Input B Run B

Scan 1Scan 2 Scan 3 Scan 4

Scan 5

Scan N

(n-1)

Output B

Input A

Run A

OutputA

Input B

Run B

Latch Nth scan registers that are

inputs to both tasks A and B.

UDC operating system generates

interrupt to AutoMax Processor.

Latch “every scan” registers used

as inputs to task A

Write “every scan” registers

that are outputs from task A

Latch “every scan”

registers that are

inputs to task B.

Write “every

scan” registers

that are

outputs from

task B.

Write “every

scan" registers

that are

outputs fr

task B.

Latch “every scan" registers that

are inputs to task A

Write “every scan" registers

that are outputs from task A

registers that are

inputs to task B

Write “Nth scan" registers

that are outputs from both

tasks A and B

Scan 5

(n-1)

Scan 6

(Nth scan)

Zoom in

Value in scans per interrupt register = 6

Scan 2 Scan 3

Scan 4

Scan 1

UDC Module

AutoMax Processor with Task Servicing

Interrupts from UDC module.

AutoMax Processor Task**

Servicing UDC interrupt

*CCLK is turned on in the AutoMax rack by the AutoMax task.

**As long as this AutoMax task can execute in the interval between UDC updates (and interrupts, in this case)

there will be no task overlap in the AutoMax Processor.

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