System programming, Advanced screen operations, Communications statistics – Rockwell Automation 7000A PowerFlex Medium Voltage AC Drive - Air-Cooled (A Frame) User Manual

Page 144

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3-70 Operator

Interface

7000A-RM001A-EN-P – January 2011

7000 “A” Frame

System Programming

The firmware for the complete drive system may be updated via
serial port #2 on the Customer Interface Board. Pressing the [F9]
key from the transfer screen will place the drive system into
download mode.

Advanced Screen Operations

A number of advanced functions have been incorporated into the
operator interface. These operations are not required to operate the
drive. They are meant as service tools for trained technicians and
have been included here only for completeness.

All operations are accessed via a two key sequence.

Communications

Statistics

The screen, depicted in Figure 3.98 shows statistics involving the
serial communications between the operator interface and the drive
as well as the contents of the transmit and receive buffers. It is
called from any screen (except the PRINTER screen), by pressing
the [F10] key and the [cursor down] key at the same time.

Figure 3.98 – Communications Statistics & Buffer

The ERRORS show the number of occurrences of a particular error
since the last time the counters were reset.

Parity: number of parity errors in characters received.

Framing: number of framing errors in the characters received.

Overrun: number of characters received that were not read prior
to accepting the next character.

Resends: number of times the operator interface had to resend
data due to a NACK being sent by the drive.

Timeouts: number of times the operator interface did not receive
data from the drive within a specified time period.

Chksum: number of times the operator interface detected a
checksum error in the data it received from the drive.

Discard: number of characters discarded by the operator
interface, as they were not what was anticipated.

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