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CR1000 Manual - Campbell Scientific

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Appendix B. Status Table and Settings<br />

13 Displays 0 until a SlowSequence scan runs.<br />

14 Security can be changed via DeviceConfig, external keyboard / display, PakBusGraph, Status<br />

table, and SetSecurity() instruction. Shows -1 if the security code has not been given, or if it has been<br />

deactivated.<br />

15 In general, CommsActive is set to TRUE when receiving incoming characters, independent of the<br />

protocol. It is set to FALSE after a 40 second timeout during which no incoming characters are<br />

processed, or when the protocol is PakBus and the serial packet protocol on the COM port specifies off<br />

line. Note, therefore, that for protocols other than PakBus that are serviced by the SerialIO()<br />

instruction (ModBus, DNP3, generic protocols), CommsActive will remain TRUE as long as<br />

characters are received at a rate faster than every 40 seconds. In addition, PPP will activate its COM<br />

port with a 31 minute timeout. When PPP closes, it will cancel the timeout and set CommsActive as<br />

FALSE. Further, if there is a dialing process going on, CommsActive is set to TRUE. One other<br />

event that causes ComME to be active is the GOES instruction. In conclusion, the name<br />

"CommsActive" can be misleading. For example, if there are no incoming characters to activate the<br />

40-second timeout during which time CommsActive is set to TRUE and only outputs data, then<br />

CommsActive is not set to TRUE. For protocols other than PakBus,the active TRUE lingers for 40<br />

seconds after the last incoming characters are processed. For PPP, the COM port is always TRUE so<br />

long as PPP is open.<br />

16 When the SerialOpen() instruction is used, CommsConfig is loaded with the format parameter of<br />

that instruction. PakBus communication can occur concurrently on the same port if the port was<br />

previously opened (in the case of the CP UARTS) for PakBus, or if the port is always open (CS I/O 9<br />

pin, and RS-232) for PakBus, the code is 4.<br />

17 The value shown is the initial baud rate the <strong>CR1000</strong> will use. A negative value will allow the<br />

<strong>CR1000</strong> to autobaud but will dictate at which baud tate to begin. When doing autobaud, the <strong>CR1000</strong><br />

measure the baudrate, then sets the comm port to that baud.<br />

18 A list of up to eight PB addresses for routers that can act as central routers. See Device<br />

Configuration Utility software for more information.<br />

19<br />

(1) 5000-mV range 250-us integration<br />

(2) 2500-mV range 250-us integration<br />

(3) 250-mV range 250-us integration<br />

(4) 25-mV range 250-us integration<br />

(5) 7_5-mV range 250-us integration<br />

(6) 2.5-mV range 250-uS integration<br />

(7) 5000 mV range 60-Hz integration<br />

(8) 2500-mV range 60-Hz integration<br />

(9) 250-mV range 60-Hz integration<br />

(10) 25-mV range 60-Hz integration<br />

(11) 7_5-mV range 60-Hz integration<br />

(12) 2.5-mV range 60-Hz integration<br />

(13) 5000-mV range 50-Hz integration<br />

(14) 2500-mV range 50-Hz integration<br />

(15) 250-mV range 50-Hz integration<br />

(16) 25-mV range 50-Hz integration<br />

(17) 7_5-mV range 50-Hz integration<br />

(18) 2.5-mV range 50-Hz integration<br />

539

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