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(3) Request Error
This error occurs when header or command is illegal. The conditions of occurrence of the respective
errors are shown below.
Invalid Version
The version of the header is other than two.
Invalid Category
The category does not match.
Example: 0Bh is specifi ed in the device of category = 0Ah.
Invalid Request
An unsupported request is specifi ed.
Example: Request = 02h is specifi ed.
Short Header
The received data is one byte.
Short Community
The received data is in the range of two to fi ve bytes.
Short Command
The received data is in the range of six to nine bytes.
(4) Network Error
There is something wrong with TCP/IP.
Timeout
Communication was interrupted.
22
VPL-EW130
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