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Chapter 4 Parameters|
4-138 Revision August 2008, 03VE, SW V2.04
09-03 COM1 Time-out Detection Unit: 0.1
Control
mode
VF VFPG SVC FOCPG TQRPG
Factory Setting: 0.0
Settings 0.0 ~ 100.0 sec (0.0 disable)
If Pr.09-03 is not set to 0.0, Pr.09-02=0~2, and there is no communication on the bus during
the Time Out detection period (set by Pr.09-03), “cE10” will be shown on the keypad.
09-04 COM1 Communication Protocol
Control
mode
VF VFPG SVC FOCPG TQRPG
Factory Setting: 1
Settings 0 Modbus ASCII mode, protocol <7,N,1>
1 Modbus ASCII mode, protocol <7,N,2>
2 Modbus ASCII mode, protocol <7,E,1>
3 Modbus ASCII mode, protocol <7,O,1>
4 Modbus ASCII mode, protocol <7,E,2>
5 Modbus ASCII mode, protocol <7,O,2>
6 Modbus ASCII mode, protocol <8,N,1>
7 Modbus ASCII mode, protocol <8,N,2>
8 Modbus ASCII mode, protocol <8,E,1>
9 Modbus ASCII mode, protocol <8,O,1>
10 Modbus ASCII mode, protocol <8,E,2>
11 Modbus ASCII mode, protocol <8,O,2>
12 Modbus RTU mode, protocol <8,N,1>
13 Modbus RTU mode, protocol <8,N,2>
14 Modbus RTU mode, protocol <8,E,1>
15 Modbus RTU mode, protocol <8,O,1>
16 Modbus RTU mode, protocol <8,E,2>
17 Modbus RTU mode, protocol <8,O,2>
1. Control by PC or PLC
A VFD-VE can be set up to communicate on Modbus networks using one of the following modes:
ASCII (American Standard Code for Information Interchange) or RTU (Remote Terminal Unit).
Users can select the desired mode along with the serial port communication protocol in Pr.09-04.
Code Description:
ASCII mode:
Each 8-bit data is the combination of two ASCII characters. For example, a 1-byte data:
64 Hex, shown as ‘64’ in ASCII, consists of ‘6’ (36Hex) and ‘4’ (34Hex).
Character ‘0’ ‘1’ ‘2’ ‘3’ ‘4’ ‘5’ ‘6’ ‘7’
ASCII code 30H 31H 32H 33H 34H 35H 36H 37H