LMI chroma+scan 3155, User Manual

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message
reserved[7] k64s Reserved for internal use
encoder[count] k64s Encoder readings (encoder pulses)
timestamp[count] k64s Timestamp readings (microseconds)
Encoder Message (Version 1)
Field Type Description
messageSize k64s Total size of message (bytes)
messageId k64s Type of message (15)
reserved[2] k64s Reserved for internal use
deviceId k64s Server serial number
count k64s
Count of encoder/timestamp readings in
message
reserved[7] k64s Reserved for internal use
encoder[count] k64s Encoder readings (encoder pulses)
timestamp[count] k64s Timestamp readings (microseconds)
encoderIndex[count] k64s Encoder pulse index
IOState[count] k64s
Digital I/O states (bits 0 to 3 are states of
inputs 0 to 3)
7.5 Health Indicators
scan 3x00 servers emit diagnostic messages containing health indicators at a
regular interval. The message format is described in the FireSync Host Protocol
User’s
Manual, in the section entitled FireSync Health Data Channel .
Note: currently, there are no custom indicators for scan 3x00 sensors or
servers. Consult the FireSync Host Protocol
User’s Manual for the complete lists of
standard indicators.
7.6 Sample Code
Source code for a sample client application is included with the FireSync Client
distribution (‘examples/console’ folder). This sample application, written in C and
targeted for Windows or Linux, demonstrates the use of the FireSync Host Protocol to
communicate with a scan 3x00 server. The sample application makes use of
the Zen API (‘zApi’ folder), a reusable library that implements network communication
functions for FireSync devices. Documentation for the Zen API is provided in the ‘doc’
folder.
7.7 Multiple Server Usage
Using multiple servers for processing is recommended whenever high volumes of
sensors connected to a single server result in congestion of the sensor to station
network. For the scan 3350 model, we recommend multiple servers for system
sizes greater than approximately 5 to 10 sensors (exact limitation depends on the
network performance for a given server).