76
SI-INTERBUS User Guide
Issue Number: 1
14.4
Interbus operating status
If the operating status shows a negative number, this indicates that the SI-Interbus is not
currently communicating with the Interbus master controller. Values above 0 indicate the
number of messages per second being processed.
If Pr
MM.006
shows a positive value, this value is dependent upon the Interbus network
communication speed, number of mappings and whether non-cyclic communications
are active or not.
14.5
Network loss timeout
The SI-Interbus resets an internal timer when a valid message is received from the
Interbus network. The network loss trip is triggered when no new messages are
received before the timer times out. The value is in units of milliseconds.
The size of the data mapping will depend on the total size of the target / source
parameters. Parameters of 16-bits or less will be cast as 16-bits if
MM.34
Data
Compression Enable
= On, but will be cast as 32-bits if
MM.34
Data Compression
Enable
= Off. Parameters larger than 16-bits will always be cast as 32-bits on the
network.
NOTE
NOTE
MM.006
SI-Interbus Operating Status
Minimum
-3
Maximum
9999
Default
None
Units
None
Type
16 Bit Volatile
Update Rate
Background update
Display format
None
Decimal Places
0
Coding
RO, ND, NC, PT
Pr MM.006
Description
> 0
Network healthy, displays the number of messages processed per second
0
Network health, no cyclic data transfer
-1
SI-Interbus has initialised correctly and waiting for the Interbus master to
initialise communication
-2
The SI-Interbus module reports an internal hardware fault
-3
Configuration error, invalid setting in the SI-Interbus configuration
parameters
MM.007
Network Loss Timeout
Minimum
0
Maximum
3000
Default
200
Units
ms
Type
16 Bit User Save
Update Rate
Background read
Display format
None
Decimal Places
0
Coding
RW, BU
