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4 telecommunications and data retrieval, Table 74. file-control functions – Campbell Scientific CR800 and CR850 Measurement and Control Systems User Manual

Page 332

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Section 8. Operation

332 

 

 

Table 78. File System Error Codes

Error Code

Description

25

Access to uninitialized ram drive

26

Attempted rename across devices

27

Subdirectory is not empty

31

Attempted write to Write Protected disk

32

No response from drive (Door possibly open)

33

Address mark or sector not found

34

Bad sector encountered

35

DMA memory boundary crossing error

36

Miscellaneous I/O error

37

Pipe size of 0 requested

38

Memory-release error (relmem)

39

FAT sectors unreadable (all copies)

40

Bad BPB sector

41

Time-out waiting for filesystem available

42

Controller failure error

43

Pathname exceeds _MAX_PATHNAME

 

8.4 Telecommunications and Data Retrieval

Telecommunications, in the context of CR800 operation, is the movement of
information between the CR800 and another computing device, usually a PC. The
information can be programs, data, files, or control commands.

Telecommunications systems require three principal components: hardware,
carrier signal, and protocol. For example, a common way to communicate with
the CR800 is with PC200W software by way of a PC COM port. In this example,
hardware are the PC COM port, the CR800 RS-232 port, and a serial cable. The
carrier signal is RS-232, and the protocol is PakBus®. Of these three, a user most
often must come to terms with only the hardware, since the carrier signal and
protocol are transparent in most applications.

Systems usually require a single type of hardware and carrier signal. Some
applications, however, require hybrid systems that utilize two or more hardware
and signal carriers.

Contact a Campbell Scientific applications engineer for assistance in configuring
any telecommunications system.

Synopses of software to support the various telecommunications devices and
protocols are found in Support Software

(p. 76, p. 382).

Of special note is Network

Planner

,

a LoggerNet client designed to simplify the configuration of PakBus

telecommunications networks.