Rockwell-automation SB3000 Configuration and Programming Bedienungsanleitung PDF herunterladen (Seite 31)

Configuring the UDC Module’s Registers

3-13

PMI Communication Status Register (Continued) 84/1084

Overrun Error Bit 3

The Overrun Error bit is set if the USC

reports a receive first-in, first-out overrun.

Hex Value: 0008H

Sug. Var. Name: N/A

Access: Read only

UDC Error Code: N/A

LED: N/A

DMA Format Error Bit 4

The DMA Format Error bit is set if the length

of the received message does not match the

length encoded in the message itself.

Hex Value: 0010H

Sug. Var. Name: N/A

Access: Read only

UDC Error Code: N/A

LED: N/A

Transmitter Underrun Bit 5

The Transmitter Underrun bit is set if the

USC reports a transmit first-in, first-out

underrun.

Hex Value: 0020H

Sug. Var. Name: N/A

Access: Read only

UDC Error Code: N/A

LED: N/A

CCLK Communication Synchronization Error Bit 6

The CCLK Communication Synchronization

Error bit is set if two or more CCLK counter

ticks occur and no message is received.

Hex Value: 0040H

Sug. Var. Name: N/A

Access: Read only

Sug. Var. Name: VDC_RUN@

UDC Error Code: N/A

LED: N/A

UDC CCLK Communication Synchronization Error Bit 8

The UDC CCLK Communication

Synchronization Error bit is set if two UDC

CCLK counter ticks occur and no message

is received from the PMI.

Hex Value: 0100H

Sug. Var. Name: N/A

Access: Read only

UDC Error Code: N/A

LED: N/A

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