Function 16 - Write Multiple Registers - WEG CFW-09 User Manual

8.14.3.6 Function 16 - Write
Multiple Registers
This function allows writing values to a register group that must be in
numerical sequence. This function can also be used to write a single
register (the values are always hexadecimal values and each field represents
one byte).
Query (Master)
Slave address
Function
Initial register address (byte high)
Initial register address (byte low)
Number of registers (byte high)
Number of registers (byte low)
Byte Count Field (number of data bytes)
Data 1 (high)
Data 1 (low)
Data 2 (high)
Data 2 (low)
etc to
CRC-
CRC+
Example: writing of the acceleration time P100 = 1.0 s and deceleration
time P101 = 2.0 s, of a CFW-09 at the address 20:
Query (Master)
Field
Slave address
Function
Initial register (byte high)
Initial register (byte low)
Number of registers (byte high)
Number of registers (byte low)
Byte Count
P100 (high)
P100 (low)
P101 (high)
P101 (low)
CRC-
CRC+
As the two parameters have a resolution of a decimal place for writing of 1.0
and 2.0 seconds, thus the values 10 (000Ah) and 20 (0014h) should be
transmitted.
CHAPTER 8 - CFW-09 OPTIONS AND ACCESSORIES
Response (Slave)
Initial register address (byte high)
Initial register address (byte low)
Number of registers (byte high)
Number of registers (byte low)
Response (Slave)
Value Field
14h Slave address
10h Function
00h Initial register (byte high)
64h Initial register (byte low)
00h Number of registers (byte high)
02h Number of registers (byte low)
04h CRC-
00h CRC+
0Ah -
00h -
14h -
91h -
75h -
Slave Address
Function
CRC-
CRC+
-
-
-
-
-
-
Value
14h
10h
00h
64h
00h
02h
02h
D2h
-
-
-
-
-
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