110
5. PARAMETERS
5.7 (N) Communication operation parameters
• Communication operation presence/absence (with/without) and data format type (A to F) are as follows.
*1
In the communication request data from the computer to the converter unit, the time of 10 ms or more is also required after an acknowledgment
(ACK) signal showing "No data error detected" is sent. (Refer to
.)
*2
Reply from the converter unit to the converter reset request can be selected. (Refer to
.)
• Data writing format
a. Communication request data from the computer to the converter unit
c. Reply data from the converter unit to the computer (No data error detected)
c. Reply data from the converter unit to the computer (Data error detected)
*1
Indicates a control code.
*2
Specifies the converter unit station numbers in the range of H00 to H1F (stations 0 to 31) in hexadecimal.
*3
Set the delay time. When
Pr.123 PU communication waiting time setting
or
Pr.337 RS-485 communication waiting time setting
is set to
other than "9999", create the communication request data without "delay time" in the data format. (The number of characters decreases by 1.)
*4
CR/LF code: When a computer transmits data to the converter unit, some computers automatically provide either one or both of the codes CR
(carriage return) and LF (line feed) at the end of a data group. In this case, setting must be also made on the converter unit according to the
computer. Use
Pr.124
or
Pr.341
for the CR+LF code setting.
• Data reading format
a. Communication request data from the computer to the converter unit
Symbol
Operation
Special
monitor
write
Parameter
write
Converter
reset
Monitor
Parameter
read
a
Communication request is sent to the converter unit in
accordance with the user program in the computer.
A1
A
A
B
B
b
Converter unit data processing time
With
With
Without
With
With
c
Reply data from the converter unit (Data
(a) is checked for an error.)
No error
(Request accepted)
C
C
E, E1,
E2, E3
E
Error detected
(Request rejected)
D
D
D
D
d
Computer processing delay time
10 ms or more
e
Reply from computer in response to reply
data c
(Data c is checked for error.)
No error
(No converter unit
processing)
Without
Without
Without
Without
(C)
Without (C)
Error detected
(Converter unit
outputs c again.)
Without
Without
Without
F
F
Format
Number of characters
1
2
3
4
5
6
7
8
9
10
11
12
13
A
ENQ
Converter
unit station
number
Instruction
code
Data
Sum check
A1
ENQ
Converter
unit station
number
Instruction
code
Data
Sum check
Format
Number of characters
1
2
3
4
C
ACK
Inverter
station
number
Format
Number of characters
1
2
3
4
5
D
Converter unit station
number
Error code
Format
Number of characters
1
2
3
4
5
6
7
8
9
B
ENQ
Converter unit
station number
Instruction code
Sum check
Содержание FR-CC2-N Series
Страница 61: ...60 3 PRECAUTIONS FOR USE OF THE CONVERTER UNIT 3 4 Checklist before starting operation MEMO ...
Страница 137: ...136 5 PARAMETERS 5 10 Checking parameters changed from their initial values initial value change list MEMO ...
Страница 153: ...152 6 PROTECTIVE FUNCTIONS 6 6 Check first when you have a trouble MEMO ...
Страница 165: ...164 7 PRECAUTIONS FOR MAINTENANCE AND INSPECTION 7 2 Measurement of main circuit voltages currents and powers MEMO ...
Страница 171: ...170 8 SPECIFICATIONS 8 3 Outline dimension drawings MEMO ...
