8 PROFIBUS Configuration Tool
8.3 "PROFIBUS Network" window
85
8
Bus Parameter Settings
Sets the bus parameters of the PROFIBUS-DP network.
[Master Settings]
[Bus Parameters] button
Normally, use the default bus parameters.
To change the bus parameters, knowledge about the PROFIBUS-DP standards is required.
*1 TBit is a unit in which 1 indicates the time it takes to send one bit of data. When a TBit value is input for each item, it is automatically
converted to ms and the converted value is displayed by "ms" on the right side. For the conversion method, refer to the following.
*2 For the "Min. slave interval" setting, refer to the following.
Precautions
The max T_sdr, Quiet Time (T_qui) and Setup Time (T_set) settings in the bus parameters must match the maximum values
of devices connected to the PROFIBUS-DP network, including the DP-Master. The default values are as follows.
Item
Description
Setting range
Slot Time (T_sl)
Sets the slot time (ms) (the maximum time for waiting responses). (Unit: TBit)
When the time set for this item is exceeded, an error is resulted.
38 to 16383
(Default: 300)
min T_sdr
Sets the minimum response time (ms) of the DP-Slave. (Unit: TBit)
11 to 1022
(Default: 11)
max T_sdr
Sets the maximum response time (ms) of the DP-Slave. (Unit: TBit)
37 to 1023
(Default: 150)
Quiet Time (T_qui)
Sets the time required for switching the send direction of the repeater. (Unit:
TBit)
Set this item to 0 when the repeater is not used.
0 to 127
(Default: 0)
Setup Time (T_set)
Sets the setup time. (Unit: TBit)
1 to 255
(Default: 1)
Target Rot. Time (T_tr)
Sets the target token rotation time. (Unit: TBit)
Sets automatically the time when checked "Use 'Min. slave interval' for 'Target
Token Rotation Time (T_tr)'" in the "Master Settings" window (default setting).
When the box is unchecked, set the time manually. (
256 to 16777215
(Default: The "Min. slave interval" value of TBit)
GAP factor
Sets the constant for controlling the GAP update time (T_gud).
1 to 100
(Default: 10)
HSA
Sets the maximum FDL address of DP-Slaves in the line.
2 to 126
(Default: 126)
Max retry limit
Sets the maximum number of retries for each send data.
1 to 7
(Default: 1)
Item
Transmission speed
9.6kbps, 19.2kbps,
93.75kbps, 187.5kbps
500kbps
1.5Mbps
3Mbps
6Mbps
12Mbps
max T_sdr
60
100
150
250
450
800
Quiet Time (T_qui)
0
0
0
3
6
9
Setup Time (T_set)
1
1
1
4
8
16
Summary of Contents for FX5-DP-M
Page 1: ...MELSEC iQ F FX5 User s Manual PROFIBUS ...
Page 2: ......
Page 9: ...7 MEMO ...
Page 12: ...10 INDEX 168 REVISIONS 170 WARRANTY 171 TRADEMARKS 172 ...
Page 13: ...11 CONTENTS ...
Page 19: ...1 DESCRIPTION 17 1 MEMO ...
Page 100: ...98 9 PROGRAMMING 9 2 DP Master settings DP Slave FDL address 2 ...
Page 101: ...9 PROGRAMMING 9 2 DP Master settings 99 9 DP Slave FDL address 3 ...
Page 108: ...106 9 PROGRAMMING 9 8 Program Example of the Global Control Function ...
Page 109: ...9 PROGRAMMING 9 8 Program Example of the Global Control Function 107 9 ...
Page 110: ...108 9 PROGRAMMING 9 8 Program Example of the Global Control Function ...
Page 112: ...110 9 PROGRAMMING 9 9 Program Example of Acyclic Communication Acyclic Communication ...
Page 114: ...112 9 PROGRAMMING 9 10 Program Example of the Alarm Acquisition Function ...
Page 169: ...APPX Appendix 4 Processing Time 167 A MEMO ...
Page 175: ......