beautypg.com

ProSoft Technology MVI71-GSC User Manual

Page 24

background image

MVI71-GSC ♦ PLC Platform

Installing and Configuring the Module

Generic Serial Communication Module

Page 24 of 82

ProSoft Technology, Inc.

January 31, 2008

Block Offset

Content

Description

32 to 37

Receive Termination
Characters

This array of 12 characters define the termination characters at the
end of each received message. Each character occupies one position
in the array. The number of characters to be used in the array is set in
the RTermCnt parameter.

38

Receive Packet Length

This parameter is used if bit 3 is set in the Type parameter. The
parameter sets the length of data required to be received on the port
before transferring the data to the processor.

39

Receive Timeout

This parameter is used if bit 1 is set in the Type parameter. The
parameter sets the number of milliseconds to wait after the first
character is received on the port before automatically sending the data
to the processor.

40

Receive Delay

This parameter is used if bit 2 is set in the Type parameter. The
parameter sets the number of milliseconds to wait between each
character received on the port before sending the data to the
processor.

41

Transmit Timeout

This parameter specifies the timeout period to transmit a message out
the port. A message must be transmitted out the port within the
specified timeout period. Message transmission will be aborted if the
timeout is exceeded.

42

Minimum Transmit Delay

This parameter specifies the minimum number of milliseconds to delay
before transmitting a message out the port. This pre-send delay is
applied before the RTS on time. This may be required when
communicating with slow devices.

Port 1 Byte Swapping

Block Offset

Content

Description

43

Receive Byte Swap

This parameter determines if the bytes received on Port 1 should be
swapped before transferring to the processor. If the parameter is set to
0, the data is transferred as received on the port. If the parameter is
set to 1, the adjacent bytes will be exchanged.

44

Transmit Byte Swap

This parameter determines if the bytes to be transmitted on Port 1
should be swapped before transferring out the port. If the parameter is
set to 0, the data is transferred as received from the processor. If the
parameter is set to 1, the adjacent bytes will be exchanged before
being transmitted.

Port 2 Byte Swapping

Block Offset

Content

Description

45

Receive Byte Swap

This parameter determines if the bytes received on Port 2 should be
swapped before transferring to the processor. If the parameter is set to
0, the data is transferred as received on the port. If the parameter is
set to 1, the adjacent bytes will be exchanged.

46

Transmit Byte Swap

This parameter determines if the bytes to be transmitted on Port 2
should be swapped before transferring out the port. If the parameter is
set to 0, the data is transferred as received from the processor. If the
parameter is set to 1, the adjacent bytes will be exchanged before
being transmitted.