OPC DataHub™ : Version 6.4
	Appendix H. Error Messages

Appendix H. Error Messages

Table of Contents

This section presents error numbers that the developer may encounter when using the OPC DataHub.

H.1. Windows Error Numbers

Number	Error String	Error Description
0	EOK	No error.
1	EPERM	No permissions, or the user is not the process owner.
2	ENOENT	No such file or directory.
3	ESRCH	No such process.
4	EINTR	Interrupted system call.
5	EIO	I/O error.
6	ENXIO	No such device or address.
7	E2BIG	Argument list is too big.
8	ENOEXEC	Executable format is not recognized.
9	EBADF	Bad file number or invalid file descriptor.
10	ECHILD	No child processes exist.
11	EAGAIN	Resource temporarily unavailable or operation would block.
12	ENOMEM	Out of memory.
13	EACCES	Permission denied.
14	EFAULT	Bad memory address.
15	ENOTBLK	Block operation attempted on non-block device.
16	EBUSY	Device or resource busy, or operation already in progress.
17	EEXIST	File exists.
18	EXDEV	Cross-device link.
19	ENODEV	No such device.
20	ENOTDIR	Not a directory.
21	EISDIR	Is a directory.
22	EINVAL	Invalid argument.
23	ENFILE	File table overflow.
24	EMFILE	Too many open files.
25	ENOTTY	Character operation on non-character device.
26	ETXTBSY	Text file is busy.
27	EFBIG	File is too large.
28	ENOSPC	No space left on device.
29	ESPIPE	Illegal seek attempted on a pipe.
30	EROFS	Attempted write to a read-only file system.
31	EMLINK	Too many links.
32	EPIPE	Broken pipe.
33	EDOM	Math argument out of data domain of function.
34	ERANGE	Result too large.
35	EUCLEAN
36	EDEADLOCK	Deadlock avoided.


Appendix G. DDE Overview		H.2. Windows TCP Error Numbers