Rockwell-automation SD3000 Drive Configuration, Programming Manual do Utilizador descarregar pdf (Página 82)

5.3

Running, Stopping, and Deleting UDC Application Tasks

WARNING

UNDERSTAND THE APPLICATION BEFORE STARTING A TASK. OUTPUTS MAY CHANGE STATE,

RESULTING IN MACHINE MOVEMENT. FAILURE TO OBSERVE THESE PRECAUTIONS COULD

RESULT IN BODILY INJURY.

WARNING

IT IS THE RESPONSIBILITY OF THE USER TO ENSURE THAT THE APPLICATION PROCESS STOPS

IN A SAFE MANNER WHEN THE APPLICATION TASKS

STOP.

FAILURE TO OBSERVE THESE

PRECAUTIONS COULD RESULT IN BODILY INJURY.

Running UDC Tasks

A UDC application task is required in order to control a Distributed Power drive. To control two drives,

two UDC tasks are required. Once it is loaded to the UDC, a UDC application task is included in the

on-line task list with the

AutoMax

Processor application tasks. It can be run, stopped, monitored, or

deleted in the same way as any other application task. The priority field will be set to “N/A” for UDC

application tasks. The task for drive A always executes first, followed by the task for drive B.

The Run All command will run all

AutoMax

and UDC tasks. The UDC module’s tasks can be run

whether or not the following conditions are met:

the PMI is communicating with the UDC module

the PMI operating system has been loaded from the UDC module to the PMI (which happens

automatically when the PMI is connected to the UDC module)

Stopping UDC Tasks

UDC applications tasks (both tasks A and B together) must run a least every 10 milliseconds. Once

the SCAN-LOOP statement is executed, the UDC module will cause a Stop All in the rack if the task

does not complete its scan within 10 milliseconds.

Deleting UDC Tasks

When a UDC application task is deleted, any local variables which were forced are removed from the

force table. The task’s error log is also cleared.

5.4

UDC Information Log and Error Log

The information log and the error log for a UDC task can be displayed by selecting “I” for Info/Log

from the ON LINE menu. Refer to the

AutoMax

Programming Executive for the procedure.

The information log for a slot containing a UDC module will display the UDC operating system’s part

number, the utilization of the CPU resources in the UDC module, and various memory and PMI rack

statistics. Select “U” from the Info/Log menu to display the information log. Note that the UDC

module’s CPU utilization should not exceed 75%.

AutoMax

tasks, UDC tasks can also access the error log by using the BASIC statement

CLR_ERRLOG@

and BASIC function

TST_ERRLOG@.

The error log will display the first, second, and

last errors and will maintain them until power is cycled.

5-2

1 2 ... 77 78 79 80 81 82 83 84 85 86 87 ... 117 118

Comentários a estes Manuais

Sem comentários

Rockwell-automation SD3000 Drive Configuration, Programming Manual do Utilizador Página 82

Comentários a estes Manuais

Manuais e produtos relacionados com Equipamento Rockwell-automation SD3000 Drive Configuration, Programming