Parker PD-04 Series User Manual

Parker Hannifin
P series User Guide 66
Abnormal response consists of Node ID, Error Code and Exception Code. Packet
structure of abnormal response is the same regardless of the function code.
 CRC
Input 16bit CRC value. The values are divided into MSB/LSB, and transmitted one byte
at a time.
 Exception Code
Exception codes for all function code abnormal responses supported by PD Drive are
defined as follows.
Exception Code
Description
0x01
Function Code not supported
0x02
Wrong register address
0x03
Wrong data value
0x04
Device malfunction
0x05
Data not ready
0x06
Parameter locked
Table 24. Exception Code Description
4.2.4 Protocol Command Code Description
A. Read Holding Register (0x03)
Reads the values of single register (16bit data) and continuous register block (16bit
data unit).
 Request
Function code
1Byte
0x03
Starting Address
2Byte
0x0000 to 0xFFFF
Quantity of Registers
2 Bytes
1 to 125 (0x7D)
 Request OK
Function code
1Byte
0x03
Starting Address
1Byte
2 x N*
Quantity of Registers
N* x 2 Bytes
*N = Quantity of Registers
 Response not OK
Error code
1Byte
0x83
Exception code
1Byte
0x01 ~ 0x06
Table 25. Read Holding Register
Example1) reading a single parameter (current speed (Address: 0x2600))
 Request
Node
ID
Functio
n
Starting
Address
Hi
Starting
Address
Lo
Quantity of
Register Hi.
Quantity of
Register Lo
CRC
Hi
CRC
Lo
0x01
0x03
0x26
0x00
0x00
0x01
0x8F
0x42

Parker PD-04 Series Specifications

General

Brand	Parker
Model	PD-04 Series
Category	Servo Drives
Language	English