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ProSoft Technology MVI69-GSC User Manual

Page 41

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MVI69-GSC ♦ CompactLogix or MicroLogix Platform

Configuring the MVI69-GSC Module

Generic ASCII Serial Communication Module

User Manual

ProSoft Technology, Inc.

Page 41 of 102

September 24, 2010

[Section]/Item

Value

Range

Description

RTS On:

0 to 65535

This parameter sets the number of milliseconds to
delay after RTS is asserted before the data will be

transmitted. Valid values are in the range of 0 to

65535.

RTS Off:

0 to 65535

This parameter sets the number of milliseconds to
delay after the last byte of data is sent before the

RTS modem signal will be set low. Valid values

are in the range of 0 to 65535.

Handshaking:

NONE,

RTS/CTS,
DTR/DSR or

XON/XOFF

This parameter specifies the handshaking used on

the port. The values are as follows: None=No
hardware or software handshaking, RTS/CTS

hardware handshaking, DTR/DSR hardware

handshaking and XON/XOFF software

handshaking.

Rx Term Char Count:

0 to 12

This parameter is used if bit 0 of the Type

parameter is set. This value (0 to 12) defines the
number of termination characters used to define

the end of received message.

Rx Term Characters:

List of up to
12 integer

values

This array of 12 integer values representing the
characters used to define the termination

characters at the end of each received message.

The number of characters to be used in the array

is set in the RTermCnt parameter.

Rx Packet Length:

0 to 4096

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.

Rx Message Timeout:

0 to 65535

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.

Rx Intercharacter Delay:

0 to 65535

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.

Rx Swap Bytes:

Yes or No

This parameter specifies if the data received
should have its bytes swapped before sending

over the backplane.

Tx Message Timeout:

0 to 65535

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.

Tx Minimum Delay:

0 to 65535

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.