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PHOENIX AC DRIVE FUNCTION FORMATS 6- 1
6.0 PHOENIX AC DRIVE FUNCTION
FORMATS
6.1 Modbus USD Function Formats
The Phoenix AC drive supports five Modbus functions.
The drive Modbus function supports only one
parameter per query. Each response to the query
returns multiple bytes of information. A query’s a
non-existing function, the response will be an error.
Code
Modbus
Function
Phoenix
Function
01
Read Coil Status
Read Value Strings
03
Read Holding Register
Read Parameter Value
04
Read Input Register
Read Parameter Name
05
Force Single Coil
Write Parameter Name
06
Preset Single Register
Write Parameter Value
Function Code 01–Read Parameter Value Name
This function reads the parameter value name that
describes the specified parameter value on the
Phoenix drive. This is for only parameters that have
names for values. The value name can be 9 or 16
characters. Broadcast is not supported.
Query
Modbus
Format
Phoenix
Format
Example
Slave Address
Drive Address
01
Function Code
Function Code
01
Starting Address Hi
Menu Number
0B
Starting Address Lo
Parameter Number
19
Number of Points Hi
Parameter Value Hi
00
Number of Points Lo
Parameter Value Lo
01
CRC Lo
CRC Lo
2E
CRC Hi
CRC Hi
29
Response
Modbus
Format
Phoenix
Format
Example
Slave Address
Drive Address
01
Function Code
Function Code
01
Byte Count
Byte Count
09
Data 1 Hi
Parameter Name Char 1
39
Data 1 Lo
Parameter Name Char 2
36
Data 2 Hi
Parameter Name Char 3
30
Data 2 Lo
Parameter Name Char 4
30
Data 3 Hi
Parameter Name Char 5
20
Data 3 Lo
Parameter Name Char 6
42
Data 4 Hi
Parameter Name Char 7
41
Data 4 Lo
Parameter Name Char 8
55
Data 5 Hi
Parameter Name Char 9
44
CRC Lo
CRC Lo
3F
CRC Hi
CRC Hi
46
The example above is reading drive 1 parameter
M11P25 value name for value of 1. The response is
“9600 BAUD”.
Function Code 03 – Read Parameter Value
This function reads the data value and decimal point
position of the specified parameter on the Phoenix
drive. Broadcast is not supported.
Query
Modbus
Format
Phoenix
Format
Example
Slave Address
Drive Address
01
Function Code
Function Code
03
Starting Address Hi
Menu Number
05
Starting Address Lo
Parameter Number
09
Number of Points Hi
Don’t Care
00
Number of Points Lo
Don’t Care
00
CRC Lo
CRC Lo
95
CRC Hi
CRC Hi
04
Response
Modbus
Format
Phoenix
Format
Example
Slave Address
Drive Address
01
Function Code
Function Code
03
Byte Count
Byte Count
03
Data 1 Hi
Parameter Value Hi
02
Data 1 Lo
Parameter Value Lo
58
Data 2 Hi
Decimal Point Location
01
CRC Lo
CRC Lo
1E
CRC Hi
CRC Hi
4E
The example above is reading drive 1 parameter
M05P09 BASE MOTOR FREQ. The response is 60.0
hertz.
Decimal point is to the right 1 position:
0258 Hex
600 Decimal
60.0 Hertz
When the parameter has a text string for value (ex.
MODBUSUSD), the data value, decimal point, and
parameter name value will be return.
Query
Modbus
Format
Phoenix
Format
Example
Slave Address
Drive Address
01
Function Code
Function Code
03
Starting Address Hi
Menu Number
0B
Starting Address Lo
Parameter Number
1A
Number of Points Hi
Don’t Care
00
Number of Points Lo
Don’t Care
00
CRC Lo
CRC Lo
66
CRC Hi
CRC Hi
29
Response
Modbus
Format
Phoenix
Format
Example
Slave Address
Drive Address
01
Function Code
Function Code
03
Byte Count
Byte Count
0C
Data 1 Hi
Parameter Value Hi
00
Data 1 Lo
Parameter Value Lo
00
Data 2 Hi
Decimal Point Location
00
Data 2 Lo
Parameter Name Char 1
4D
Data 3 Hi
Parameter Name Char 2
4F
Data 3 Lo
Parameter Name Char 3
44
Data 4 Hi
Parameter Name Char 4
42
Data 4 Lo
Parameter Name Char 5
55
Data 5 Hi
Parameter Name Char 6
53
Data 5 Lo
Parameter Name Char 7
55
Data 6 Hi
Parameter Name Char 8
53
Data 6 Lo
Parameter Name Char 9
44
CRC Lo
CRC Lo
84
CRC Hi
CRC Hi
EE
Summary of Contents for DS Series
Page 5: ...1 2 INTRODUCTION END OF INTRODUCTION SECTION ...
Page 8: ...HARDWARE INTERFACE 2 3 Figure 2 3 Figure 2 2 Figure 2 1 ...
Page 13: ...2 8 HARDWARE INTERFACE END OF HARDWARE INTERFACE ...
Page 19: ...3 6 MODBUS RTV PROTOCAL DESCRIPTION END OF MODBUS RTU PROTOCAL DESCRIPTION ...
Page 23: ...5 2 MODBUS FUNCTION FORMATS END OF MODBUS FUNCTION FORMATS ...
Page 29: ...6 6 PHOENIX AC DRIVE FUNCTION FORMATS END OF PHOENIX AC DRIVE FUNCTION FORMATS ...
Page 31: ...7 2 EXCEPTION RESPONSE END OF EXCEPTION RESPONSE ...
Page 37: ...9 2 PARAMETER CONVERSION END OF PARAMETER CONVERSION ...
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