Campbell Scientific CR1000KD CR800 and CR850 Measurement and Control Systems - Page 424
Serial Talk Through and Sniffer
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Section 10. Troubleshooting Figure 129: DevConfig terminal emulator tab 10.6.1 Serial Talk Through and Sniffer In the P: Serial Talk Through and W: Serial Comms Sniffer modes, the timeout can be changed from the default of 40 seconds to any value ranging from 1 to 86400 seconds (86400 seconds = 1 day). When using options P or W in a terminal session, consider the following: 1. Concurrent terminal sessions are not allowed by the CR800. 2. Opening a new terminal session will close the current terminal session. 3. The CR800 will attempt to enter a terminal session when it receives non- PakBus characters on the nine-pin RS-232 port or CS I/O port, unless the port is first opened with the SerialOpen() command. If the CR800 attempts to enter a terminal session on the nine-pin RS-232 port or CS I/O port because of an incoming non-PakBus character, and that port was not opened using the SerialOpen() command, any currently running terminal function, including the communication sniffer, will immediately stop. So, in programs that frequently open and close a serial port, the probability is higher that a non-PakBus character will arrive at the closed serial port, thus closing an existing talk-through or sniffer session. 424
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