LS SV-xxx-iP5A-2, Руководство пользователя

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Chapter 8
– RS485 Communication
8-7
3.1) Acknowledge Response :
ACK Inverter No. CMD SUM EOT
06h
“01” ~ “FA” “X” “XX”
04h
1 byte 2 bytes 1 byte 2 bytes 1 byte
Total bytes = 7
3.2) Negative Acknowledge Response:
NAK Inverter No. CMD Error code SUM EOT
15h
“01” ~ “FA” “X” “**” “XX”
04h
1 byte 2 bytes 1 byte 2 bytes 2 bytes 1 byte
Total bytes = 9
4) Execution Request for monitor register: Request for read of address registered
by monitor register.
ENQ Inverter No. CMD SUM EOT
05h
“01” ~ “FA” “Y” “XX”
04h
1 byte 2 bytes 1 byte 2 bytes 1 byte
Total bytes = 7
4.1) Acknowledge response:
ACK Inverter No. CMD Data SUM EOT
06h
“01” ~ “FA” “Y” “XXXX…” “XX”
04h
1 byte 2 bytes 1 byte n * 4 bytes 2 bytes 1 byte
Total bytes = 7 + n * 4 = Max 39
4.2) Negative response:
NAK Inverter No. CMD Error code SUM EOT
15h
“01” ~ “FA” “Y” “**” “XX”
04h
1 byte 2 bytes 1 byte 2 bytes 2 bytes 1 byte
Total bytes = 9
* Request for Monitor Register should be made before Execution Request for
monitor register. If inverter power is turned off, monitor register is cleared so
redo the request for monitor register when Power ON.
5) Error code
Error code Description
IF
ILLEGAL FUNCTION
When master is sending codes other than Function code (R, W, X, Y).
IA
ILLEGAL ADDRESS
- When parameter address does not exist.
ID
ILLEGAL VALUE
- When Data contains an out of range value for an inverter
parameter
during ‘W’ (Write).
WM
WRITE MODE ERROR
- When the requested data cannot be changed (written) during
‘ W’
(Write) such as Read Only, Not adjustable during Run parameters.