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Advanced Energy
®
Figure 4-7. AE Bus communications transaction example
COMMAND STATUS RESPONSE (CSR) CODES—RS-232, AE BUS
HOST
When the host sends an executable command or a command requesting a change in a
parameter setting, the Apex generator returns a command status response (CSR) code
indicating whether the command was accepted or rejected and, if rejected, why. Table
4-5 defines how these CSR codes should be interpreted.
Table 4-5. CSR Codes for RS-232, AE Bus Host
Value Meaning
0 Command accepted
1 Wrong control mode
2 Output is on
3 Output is off
4 Data is out of range
5 User off active
7 Active fault(s) exist
9 Data byte count is incorrect
14 CMD not accept
16 T life
19 Recipe active
30 EPROM read/write
50 Frequency out of range