Bacnet Ms/Tp Protocol - Mitsubishi FR-F720-00046-NA Instruction Manual

4.19.8 BACnet MS/TP protocol

Using BACnet MS/TP protocol, communication operation and parameter setting are available from the RS-485
terminals of the inverter.
Parameter
Name
Number
DU/PU main
52
display data
selection
PU/DU monitor
selection 1
774
PU/DU monitor
775
selection 2
776
PU/DU monitor
selection 3
RS-485
331
communication
station number
RS-485
332
communication
speed
390
% setting reference
frequency
549
Protocol selection
726
Auto Baudrate/Max
Master
727
Max Info Frames
Device instance
728
number (Upper 3
digit)
Device instance
729
number (Lower 4
digit)
The above parameters can be set when Pr. 160 User group read selection = "0". (Refer to page 192)
.....
Specifications differ according to the date assembled. Refer to page 399 to check the SERIAL number.
*1 The inverter works with the initial parameter setting if a value other than the setting range is set.
*2 When using Auto baudrate, the communication speed is changed to the detected communication speed.
♦ Parameters referred to ♦
Pr. 336 RS-485 communication check time interval
Pr. 338 Communication operation command source
Pr. 339 Communication speed command source
Pr. 340 Communication startup mode selection
Pr. 342 Communication EEPROM write selection
Pr. 502 Modbus-RTU communication check time interval
Pr. 550 NET mode operation command source selection
Pr. 551 PU mode operation command source selection
Initial Setting
Value Range
0, 5, 6, 81: BACnet reception status
8 to 14, 17, 82: BACnet token pass counter
0
20, 23 to 25,
(output
50 to 57, 64, 83: BACnet valid APDU counter
frequency)
67, 81 to 86,
100 84: BACnet communication error counter
1 to 3, 5, 6, 8
85: Terminal CA output level
to 14, 17, 20,
23 to 25,
86: Terminal AM output level
9999 40 to 42,
50 to 57, 64,
The monitor of setting value "82 and 83" return to 0 if the count
67, 81 to 86,
exceeds 9999. For the monitor of setting value "84", 9999 is
100, 9999
the maximum.
0 0 to 127 *1 Set the inverter station number (node).
Set the communication speed.
The setting value × 100 equals the communication speed.
96, 192, 384,
96
768 *1 *2 For example, the communication speed is 9600bps when the
setting value is "96".
60Hz 1 to 400Hz Set a reference frequency of the set frequency.
0 Mitsubishi inverter (computer link) protocol
1 1 Modbus-RTU protocol
2 BACnet MSTP protocol
Auto baud rate (bit7)
Setting range: 0 (Inactive)
255 0 to 255
Max Master (bit0 to bit6) setting range: 0 to 127
Maximum address for master node
Set the maximum number of messages that the inverter can
1 1 to 255
transmit while it owns the token.
Device identifier (Duplicated setting available)
0 to 419
0
Setting range of the combination of Pr. 728 and Pr. 729 are "0 to
(0 to 418)
4194302".
When Pr.728 = "419", setting range of Pr. 729 is "0 to 4302"
0 to 9999
When Pr.729 = "4303" or more, setting range of Pr. 728 is "0 to
0
(0 to 4302)
418"
Refer to page 216
Refer to page 206
Refer to page 206
Refer to page 205
Refer to page 218
Refer to page 218
Refer to page 206
Refer to page 206
Communication operation and setting
Description
(Displays the count of received token)
(Displays the count of valid APDU detection)
(Displays the count of communication error)
(Same display as AnalogOutput0)
(Same display as AnalogOutput1)
1 (Active)
4
249