[tempport-ppcserial c:openPort] Serial port is in use by operating system.

PROBLEM

 

Operator gets the following error window during system loader after the step Creating Temperature Controller ‘PPC COM 1’ (Figures 1 & 2):

 

[tempport-ppcserial c:openPort] Serial port is in use by operating system.

 

Figure 1 – System Loader Error Message Log Error

 

[tempport-ppcserial c:openPort] Serial [port is in use by operagting system.

 

Figure 2 – System Loader Error Window

 

 

ANSWER

This is caused by the DEBUG port not being configured correctly for use with a temperature controller.  

To use a FlexTest SE Controller with a temperature controller, configure the

DEBUG serial port as follows:

 

498.96 Processors

 

1. Access the Model 498.96 Processor circuit card in the controller’s chassis.

 

    Caution: Please remove power from the controller before adding or removing hardware.

 

 

2. Locate switch S3 (Figure 1).

 

Figure 1 – Location of switch S3 on a 498.96 Processor 

 

 

3. Set bit 8 to the off (open) position (Figure 2).

 

 

 

Figure 2 – S3 bit 8 set to the off position

 

 

MVME 5100 Processors

 

1. Access the Model MVME 5100 Processor circuit card in the Controller’s chassis.

 

    Caution: Please remove power from the controller before adding or removing hardware.

 

 

2. Locate switch S3 (Figure 3).

 

Figure 3 – Location of switch S3 on a MVME 5100 Processor 

 

 

3. Set bit 8 to the off (open) position (Figure 4).

 

 

 

Figure 4 – S3 bit 8 set to the off position

 

 

K
Keary is the author of this solution article.

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