User`s manual

66 www.rabbit.com EM1500 Configuration
String
String which defines end of packet. It may be of any length between 1 and 8 charac-
ters, however, it will typically be 1 or 2 characters (e.g., carriage return or line feed).
If “String - send” is selected, then the string is transmitted over the network with the
packet. If “String - cut” is selected, then the string is not transmitted.
Max buffer
Maximum number of bytes to buffer before sending packet. The upper limit is 1,020
bytes. If this limit is reached before the appropriate end-of-packet condition is
detected, the buffered data is transmitted without an EOP (End-of-Packet) marker.
This will have undesirable effects if “Idle” packetization is selected.
Trailing chars
Additional bytes (0 to 8) to send at end of packet. This may be used if checksum fol-
lows terminating string etc. It should only be used for “String” packetization, other-
wise the results are undefined.
5.1.11 Status/Debug Area
The stand-alone configuration program supports some basic monitoring of the EM1500 devices accessible
over the network connection. The listbox at the top left of the display shows a list of the EM1500s that can
be contacted (among other things). If you click on one of the EM1500 icons to highlight it, then the area
below the listbox becomes a status display for that unit.
Only one EM1500 unit can have its status displayed at any one time (unless you start another instance of
emconf or emconf.exe). Also, the selected EM1500 will only send its status update messages to one GUI
instance at any time. If somebody else selects the same EM1500 for viewing, then you will lose your dis-
play (or it will stop updating).