Modbus Protocol - JPS PDA Series Instruction Manual

15.3.2 Drive to Computer
Drive will send back Parameter data and its Status after receive Read Command from computer.
Format: "P,uu,nn,tt,ddddd,s,aaaa" or "P,uu,nnn,tt,ddddd,s,aaaa"
P:
uu:
nn(n) :
tt:
tt
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
22
ddddd:
s:
aaaa:

15.4 Modbus Protocol

PDAN series: Standard Modbus protocol and JPS Modbus protocol are built in to the inverter as standard, please
contact our application department for details.
P stands for PARAMETER String
ID of drive, from 00 to 99.
This number is defined in Pr.093 of each drive.
PDAN series: If Protocol P=0, Parameter format is "nn", from 00 to 99
If Protocol P=1, Parameter format is "nnn", from 000 to 999
PDA/PDE/PDH series: Parameter format is "nn", from 00 to 99
Data type of this parameter, from 00 to 22.
Data Type
Read/Write, store in EAROM
Read/Write, store in EAROM
Read/Write, store in EAROM
Read/Write, store in EAROM
Read/Write, store in EAROM
Read/Write, store in EAROM
Read/Write, store in EAROM
Read/Write, store in RAM
Read only, store in RAM
Read only, store in RAM
Read only, store in RAM
Read only, store in RAM
Read only, store in RAM
Read only, store in RAM
Read only, store in RAM
Read only, store in RAM
Read only, store in RAM
Read only, store in RAM
Read only, store in RAM
Read only, store in RAM
Read only, store in RAM
Read only, store in RAM
Data value, from 00000 to 65535.
Drive output status, from 0 to 9.
s = 1: Drive Reverse Running
s = 2: Drive Forward Running.
s = 3: Drive Stop
else, undefined.
Alarm history, from 0000 to 9999
The drive can record 4 Alarm messages.
Most significant digit stands for oldest Alarm message.
Least significant digit stands for present Alarm message.
Refer to section 14.2 for Alarm code.
Data Range
00000~65535 999.99
00000~65535 9999.9
00000~65535 99999
00000~00255 999.99
00000~00255 9999.9
00000~00255 99999
00000~00001 99999
00000~65535 99999
999.99, if data >32767 which is -
00000~65535
(65536-ddddd)
00000~65535 999.99
00000~65535 9999.9
00000~65535 99999
00000~00255 999.99
00000~00255 9999.9
00000~00255 99999
00000~00001 99999
00000~00015 99999, (Binary)
00000~00007 99999, (Binary)
00000~00003 99999, (Binary)
00000~01023 99999
00000~00001 99999, (Hex)
00000~00001 99999, (Hex)
54
Format