Citect for Windows Driver Specification DanBuss DNIP Driver

n The Function Block number. This can span from 1 to 32 for all types of function
blocks.
Note: String16 has always a maximum length of 16 bytes.
4.8 Protdir.dbf
TAG FILE BIT_BLOCK MAX_LENGTH OPTIONS
DANBUSS DANBUSS 16 256 0x0B47
4.9 Parameters and INI options
4.9.1 Standard Parameters
Block 16 (Citect blocking is prohibited)
Delay 250 ms
MaxPending 75
Polltime 100 ms
Timeout 5000 ms
Retry 2
WatchTime 30 s
4.9.2 Driver Specific Parameters
All DANBUSS specific parameters are located in the section ‘DanBuss’
PARAMETER DEFAULT DESCRIPTION
Driver Design Specification
CacheLiveTime 30000 (ms) The time a Cache Element should stay allocated from that a DCB
has made access to it. When a Cache Element is allocated, it will
always be updated with values from the device.
RefreshInterval 3600 (s) The interval that is used to update ‘One Shot’ variables. Function
Block ‘TIMCON’ is an example of a set of variables that will be updated
with this interval.
IdleSlowDown 6 The factor the ‘Delay’ is multiplied with when there are no high priority
requests in the cache list. If all variables has been updated once,
the time between DANBUSS request will increase to 6 x 250 ms =
1,5 seconds (defaults), if nothing causes any cache element to get
high priority.
DHCAddress 0:10 The address of the Citect I/O-server. If set to a faulty value, it could
cause the GateWay not to know where to send packets returning
from the devices. The default address is the Danfoss standard DHC
address.
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