
Chapter 4 Settings
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Poll background
Specify an interval at which DN611B accesses devices.
00: Scan polling (Access every scan)
01: Background polling (Access every scans specified in poll ratio)
Bit strobe receive size
Specify a size of data from a slave of bit strobe type to DN611B in bytes.
(*)
Polling receive size
Specify a size of data from a slave of polling type to DN611B in bytes.
(*)
Polling send size
Specify a size of data from DN611B to a slave of polling type in bytes.
(*)
Major revision
Specify a slave major revision. (*)
Minor revision
Specify a slave minor revision. (*)
Reserved
Set 0.
For those items marked (*), refer to the manual for the slave devices.
In specifying scan type of slave device, "2: the mix of polling and bit strobe" was available at old model
DN611, but this specification is stopped using in DN611A and DN611B.
This is because the slave which uses the mix of polling and a bit strobe does not exist.
Note that the DN611B is subject to the following restrictions on transmission in size 0 byte to polling type slave
devices.
Restrictions
When a slave device fails in communication with the DN611B due to some reason (slave device power off
or connector removed, for example), the DN611B cannot recognize whether the slave device is abnormal.
Even after the cause of the abnormality is remedied, communication cannot be resumed between the
slave device and the DN611B .
5) Others
The maximum number of slave devices that can be set by a single parameter setting request is 10. If it
is necessary to set more slave devices than that, change the set parameter values and repeat parameter
setting.
It takes about 4 seconds to set the parameters of a slave device.
◆
Important
The parameter setting request (slave device) sets the parameters of slave devices in the non-volatile memory of
the DN611. It is not necessary to execute this request each time power is switched on unless the slave devices
configuration is changed.
If you change the slave device configuration (scan list), you will need to restart DN611B.
Содержание DeviceNet nv Series
Страница 1: ...Unified Controller nv Series type1 light DeviceNetTM Module DN611B Instruction Manual 6F8C1686 ...
Страница 30: ...Chapter 1 DN611B Introduction 6F8C1686 14 ...
Страница 92: ...Chapter 4 Settings 6F8C1686 76 3 Register the slave node Figure 4 16 Register the slave node Drag and Drop ...
Страница 149: ...13 3 133 B Appendix B Outside Dimension ...
Страница 150: ...Appendix B Outside Dimension 6F8C1686 134 Figure B 1 External dimension 135 mm 35mm 130 mm 111 5mm 105mm ...
Страница 151: ...13 5 135 C Appendix C Related products C 1 Network components 136 C 2 DeviceNet setting tool 138 ...
Страница 159: ...1686 2 2201 ...