COMMUNICATIONS DIAGNOSTIC PAGE
Communications diagnostic page
This provides a page of information relating to the performance of the RS232 and RS485
communications ports and will be used to assist the installation and commissioning of a
system. The format is shown below...
The two columns of figures will increment as a communications event of the relevant type
occurs. The events are relevant only to ASCII-Hex and Master port settings and are
interpreted as follows...
Good
No reply
Bad reply
Overrun
Timeout
Checksum
Char err
Input 1 / Input 2 use
Two general purpose digital inputs are provided on the Hydro-View. However, different
applications may demand that these be used in different ways and therefore it is possible
to configure each input for a specific use. The options available are...
Ave/Hold
Coarse /
Fine
Level
Material
Sync
36
HYDRO-VIEW USER GUIDE D0022 REV 1.06
• Figure 13 - Communications diagnostic
The communications transaction was completed successfully
The Hydro-View issued a request but did not get a reply within a
predetermined period.
The reply to a request contained invalid data or was of incorrect length.
Too many characters were received to process.
A frame start character was received, but the rest of the frame did not
complete within the allowed time.
The received frame of data contained an invalid checksum.
A character framing error occurred.
Input is used to control batch averaging of the moisture value.
Relevant only to batch applications such as ready-mix plants.
Input is used to select between the Coarse and Fine filter control values
set in the Sensor set-up menu.
This is relevant only to mixer applications in pre-cast and similar
industries.
An input indicates that sufficient material is covering the sensor and
therefore that the value from the sensor can be used in the averaging
process.
Relevant only to batch applications such as ready-mix plants.
In no inputs are configured as level inputs the material level is always
deemed to be acceptable by the Hydro-View.
Input is used to control material number selection. One of four materials
may be selected in this way as described in Material selection using
digital I/O.
Input is used to synchronise sensor readings to some external timing
signal. Useful in certain batch mixer applications to help remove
unwanted noise.
Need help?
Do you have a question about the Hydro-View HV02 and is the answer not in the manual?
Questions and answers