Mitsubishi Electric FR-E500 Instruction Manual page 136

<Setting>
Parameter
Name
Number
Station
117
number
Communica-
118
tion speed
Stop bit
length/data
119
length
Parity check
presence/
120
absence
Number of
com m unication
121
retries
Communica-
tion check
122
time interval
Waiting time
123
setting
CR, LF
instruction
124
presence/
absence
<Computer programming>
( 1 ) Communication protocol
Data communication between the computer and inverter is performed using the
following procedure:
Computer
↓ (Data flow)
Inverter
Inverter
↓ (Data flow)
Computer
Setting
Station number specified for communication from the
PU connector.
0 to 31
Set the inverter station numbers when two or more
inverters are connected to one personal computer.
48 4800 baud
96 9600 baud
192 19200 baud
0 Stop bit length 1 bit
8 data
bits
1 Stop bit length 2 bits
10 Stop bit length 1 bit
7 bits
11 Stop bit length 2 bits
0 Absent
1 Odd parity present
2 Even parity present
Set the permissible number of retries at occurrence
of a data receive error.
0 to 10
If the number of consecutive errors exceeds the
permissible value, the inverter will come to an alarm stop.
If a communication error occurs, the inverter will not
come to an alarm stop. At this time, the inverter can
be coasted to a stop by MRS or RESET input.
9999
During an error, the light fault signal (LF) is given to
(65535)
the open collector output. Allocate the used terminal
with any of Pr. 190 to Pr. 192 (multi-function
outputs).
0 No communication
Set the communication check time [seconds]
interval.
0.1 to 999.8 If a no-communication state persists for longer than
the permissible time, the inverter will come to an
alarm stop.
9999 Communication check suspension
Set the waiting time between data transmission to
0 to 150
the inverter and response.
9999 Set with communication data.
0 Without CR/LF
1 With CR, without LF
2 With CR/LF
Data read
1)
* 1
Data write
121
Description
* 2
4) 5)
2)
3)
PARAMETERS
Time
4