iii.
For Controllers using RSLogix 5000, the range for each data type is:
♦
STRING/INT/SINT: 0-4096 characters
♦
STRING– If using more than 82 characters, a User Defined Data Type must
be created within the PLC and used. Refer to
Appendix C
for instructions.
♦
For Controllers using RSLogix 500, the range for each data type is:
♦
STRING: 0-82 characters
♦
INT: 0-200 characters
♦
SINT: Not Used
b.
Timer:
Use this option if your device sends data of varying lengths and does not have
end delimiters. This is the amount of time we will wait after the last character of a
message before considering the message complete.
c.
Delimiters
i.
Start Delimiter Count: Select how many Start Delimiters to look for in the ASCII
message. Use this feature if the ASCII message has common starting
delimiter(s), (characters at the beginning of every message).
ii.
End Delimiter Count: Select how many End Delimiters to look for in the ASCII
message. Use this feature if the ASCII message has common end delimiter(s).
<CR><LF> is a common example.
iii.
Remove Delimiters: If using any Start or End Delimiters and you do not want
them to be sent to the PLC, then enable this checkbox.
Message Queue
6)
Queue Size: Enter the number of complete messages you want the gateway to hold before
discarding.
7)
Queue Full Behavior: If the Queue is full, the gateway will discard messages one of the following
ways:
a.
Discard New Data: Gateway will discard any new messages.
b.
Overwrite Oldest Data: Gateway will overwrite oldest message with new data.
Data Conversion
8)
NULL Character Handling: Select how the gateway will handle the NULL Character.
a.
None (Default): Does no additional conversion on the data before sending it to the PLC.
b.
Remove NULL: Removes all NULL characters from the ASCII Message before sending it to
the PLC.
Real Time Automation, Inc.
17
1-800-249-1612
