ProSoft Technology MVI69-GEC - Manual (Page 54)

Contents MVI69-GEC ♦ CompactLogix or MicroLogix Platform
User Manual
Page 54 of 86 ProSoft Technology, Inc.
February 18, 2014
5.2.1 Receiving ASCII Text as a Client
The MVI69-GEC can receive ASCII strings from the same server it sends to. Since the client
socket connection has already been established with the server, the incoming data will be
stored in the GEC.C
LIENTS [ X ].R EAD D ATA array.
1 When the MVI69-GEC receives an ASCII string from a server, the
GEC.S TAT .C LIENT [ X ].R X C OUNT controller tag increments by 1. You will need to monitor
this tag to determine a new message was received.
2 The GEC.C LIENT [ X ].R EAD D ATA array contains the ASCII text of the new message. This
array is overwritten every time a new string is received. You will need to create logic that
monitors when a new message is received (GEC.S
TAT .C LIENT [ X ].R X C OUNT increases by
1), and copies the text out of the GEC.C LIENTS [ X ].R EAD D ATA ARRAY .
3 The number of characters received in the new message is located at
GEC.C LIENTS [0].R EAD D ATA C OUNT .
4 The accumulated total number of characters received is located at
GEC.C LIENTS [0].R EAD T OTAL C OUNT .
5.2.2 Receiving ASCII Text as a Server
When a server port of the MVI69-GEC is set up, it will accept incoming ASCII text from a
client only.
1 When the MVI69-GEC receives an ASCII string from a client, the
GEC.S TAT .S ERVER [ X ].R X controller tag increments by 1. You will need to monitor this
tag to determine a new message was received.
2 The GEC.S ERVERS [ X ].R EAD D ATA array contains the ASCII text of the new message.
This array is overwritten every time a new string is received. You will need to create logic
that monitors when a new message is received (GEC.S
TAT .S ERVER [ X ].R X increases by
1), and copies the text out of the GEC.S ERVERS [ X ].R EAD D ATA array.
3 The number of characters received in the new message is located at
GEC.S ERVERS [0].R EAD D ATA C OUNT .
4 The accumulated total number of characters received is located at
GEC.S ERVERS [0].R EAD T OTAL C OUNT .