ProSoft Technology MVI56E-GSC/ GSCXT - Manual (Page 85)

MVI56E-GSC ♦ CompactLogix or MicroLogix Platform Reference
Enhanced Generic ASCII Serial Communication Module User Manual
ProSoft Technology, Inc. Page 85 of 140
May 9, 2014
3 1 2 M, T
4 4 D
5 1 4 D, T
6 2 4 D, M
7 1 2 4 D, M, T
8 8 P
9 1 8 P, T
10 2 8 P, M
11 1 2 8 P, M, T
12 4 8 P, D
13 1 4 8 P, D, T
14 2 4 8 P ,D, M
15 1 2 4 8 P, D, M, T
Note: For each termination type, you must also enter the corresponding parameters in the
following configuration tags:
GSC.PortX.RTermCnt GSC.PortX.WTermCnt
GSC.PortX.RTermChar GSC.PortX.WTermChar
GSC.PortX.RPacketLen GSC.PortX.WPacketLen
GSC.PortX.RTimeout GSC.PortX.WTimeout
GSC.PortX.RDelay GSC.PortX.WDelay GSC.PortX.WMinDelay
Termination Type Field
If none of the bits are set (Type=0), the port will be configured for stream mode.
Any characters received on the port are immediately sent to the processor. The
processor must buffer and assemble a packet of information if this mode is
selected. If the data can be handled by the processor in this mode and it is
appropriate for your application, this is the fastest method of communication
between the device and the processor. However, stream mode tends to be
processor-intensive and does not work well in larger applications due to the
potential for loss of data. For larger applications, consider using one of the other
modes that allows the module to buffer incoming data from complete messages
before transferring it to the processor.