Anybus Communicator Modbus plus, Руководство пользователя

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DF1 Protocol Mode 55
Doc.Id. SCM-1200-093
Anybus Communicator for Modbus Plus
Doc.Rev. 3.01
9.5.1 Available Services
Right click on the node, and choose Add Command.
A pop-up window will show the four different servic-
es that are available:
• Integrity check
• Read diagnostics
• Read data
• Write data
A maximum of 50 services in total (for all nodes) can
be selected.
The predefined services can be configured to suit the
application. Select a service to show the parameters.
General Configuration Parameters
These parameters are common to all services, but the settings
are individual to each instance of a service.
General:
Timing:
Trigger:
Parameter Description Valid settings
Offline options for
fieldbus The action to take for this service
if the fieldbus goes offline. This
option affects the data that is sent
out to the subnetwork. Clear
Freeze
Noscanning
Offline options for
subnetwork The action to take for this service
if the subnetwork goes offline.
This option affects the data that is
reported to the fieldbus master. Clear
Freeze
Update mode The update mode for this service Cyclically
On data change
Single shot
Change of state
on trigger
Parameter Description Default
Retries The number of times to resend this service before the node is disconnected 3
Timeout time (10 ms)
The time to wait before resending this service (in steps of 10 ms)
a
a. The default value is given as 100 in the parameter window. Each change of 10 ms either increases or decreases
this value by 1, i.e. 99 represents a poll time of 990 ms and 101 represents a poll time of 1010 ms.
1000 ms
Update time (10 ms)
The minimum time between two services of this kind (in steps of 10 ms)
a
1000 ms
Parameter Description Default
Request Trigger byte
address The memory location of the trigger byte this service uses for updates on trigger
byte changes 0x05FF
Response Trigger byte Enables/disables the trigger byte Disabled
Response Trigger byte
address The memory location of the trigger byte this service uses for updates on trigger
byte changes
Valid settings range from 0x200... 0x3FF and 0x400... 0xNNN 0x05FF