Error Responses
When the IPI receives a valid SIS command, it executes the command and sends a response to
the host device. If the IPI is unable to execute the command because the command is invalid or
it contains invalid parameters, it returns an error response to the host.
The error response codes and their descriptions are as follows:
E12
– Invalid port number
E13
– Invalid value (the number is out of range/too large)
E14
– Not valid for this configuration
E17
– System timed out
E22
– Busy
E24
– Privilege violation
E26
– Maximum number of connections has been exceeded
E27
– Invalid event number
E28
– Bad filename or file not found
E30
– Hardware failure (followed by colon and descriptor number) (unsolicited response.)
E31
– Attempt to break port pass-through when not set
Error Response References
The following superscripted numbers are used within the command descriptions on the following
pages to identify commands that may respond as shown:
14
= Commands that give an
E14
(not valid for this configuration) response if the current
configuration of the unit does not support that command.
22
= Commands that yield an
E22
(busy) response.
24
= Commands that give an
E24
(privilege violation) response if you are not logged in at the
administrator level.
27
= Commands that may yield an
E27
(invalid event number) response.
28
= Commands that may give an
E28
(file not found) response.
IPI 100 and IPI 200 Series • SIS Programming and Control
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