Command Sequence Examples - Advanced Energy Pinnacle User Manual

®
Advanced Energy
Table 4-18. Host Port (AE Bus) Commands (Continued)
Command
Requests the CRC of the logic, front panel or
230
DSP.
request logic,
Returning packet contains 2 data bytes (16-bit
panel, or DSP
value).
CRC
•
• To receive the front panel CRC, first send
With command 230, send one data byte:
• 0 = Logic
• 1 = Front panel
• 2 = DSP

COMMAND SEQUENCE EXAMPLES

The following two examples illustrate how you may communicate with the Pinnacle
unit using the AE Bus command protocol.
Example 1: Setting the Timeout Value
This example shows how to use command 40 to set the Host port timeout value to 4.32
seconds. The example assumes that the Pinnacle unit address is 16.
For command 40, the upload packet sent from the PC host to the Pinnacle unit requires
the following information:
• Address of Pinnacle unit
• Number of data bytes in the upload packet
• Data bytes
• Checksum
The first byte of the upload packet contains the unit address and the number of data
bytes. The first five bits contain the address (16 = binary 10000). The last three bits
contain the number of data bytes required for command 40, which is two (2 = binary
010). The whole byte has a hex value of 82h (binary 10000010).
The second byte of the packet contains the command number.
4-104
Description
To receive the logic CRC, first send
command 24, which calculates the value.
command 25.
I/O Communication and Control
Number Number
of of
Transmit Response
Data Data
Bytes Bytes
1 2
5702156-E