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8.6 Communication operation from the PU connector
Pr. 117
"station number"
Pr. 118
"communication speed"
Pr. 119
"stop bit length/data length"
Pr. 120
"parity check presence/absence"
Pr. 121
"number of communication retries"
Pr. 122
"communication check time interval"
Pr. 123
"waiting time setting"
Pr. 124
"CR-LF presence/absence selection"
Make settings necessary for performing RS-485 communication operation from
the PU connector using a personal computer or similar equipment.
After you have made parameter settings, reset the CPU or switch power "OFF"
once. Switching power on again makes the parameter values valid.
Setting
Pr.
Range
117
0 to 31
Station Set the station number of the drive unit.
48
118
96
192
0
1
119
10
11
0
120
1
2
0 to 10
Times
121
9999
0
122
0.1 to 999.8
9999
0 to 150
123
9999
0
124
1
2
Unit
4800bps
9600bps
19200bps
Stop bit length 1 bit/data length 8 bits
Stop bit length 2 bits/data length 8 bits
Stop bit length 1 bit/data length 7 bits
Stop bit length 2 bits/data length 7 bits
None
Odd parity present
Even parity present
Set the number of retries to be made at occurrence of a data
receive error. If errors in excess of the setting occur
consecutively, E. PUE appears, resulting in an alarm stop.
Assigning the LF signal to the control circuit output terminal
allows a communication error occurrence signal to be output.
Occurrence of a communication error will not cause an alarm
stop. [Section 8.7.2]
No communication. (Communication operation not performed)
When a no-communication status time reaches the setting,
s
E. PUE appears and an alarm stop occurs.
No-communication status time check is not made.
Set the waiting time from when the drive unit has received data
until it gives a reply. The actual waiting time is (setting + 12)ms.
(processing time)
Set the waiting time using communication data.
Without CR (carriage return), LF (line feed)
With CR (carriage return)
With CR (carriage return)/LF (line feed)
Refer to: Chapter 6, 6.1.1 Protectire function activated
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8 PARAMETER FUNCTIONS
Description
8-11
8
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