Omron C200HW-PRM21 Operation Manuals page 59

Operation
Slot Time (T ) The maximum time the Master must wait for a transaction
SL
response.
Station Delay of The minimum and maximum allowed times for a slave to
Responders (T ) generate a reply frame.
SDR
Quiet Time (T ) The time a transmitting station must wait after the end of
QUI
a frame before enabling its receiver.
Setup Time (T ) The time between an event and the necessary reaction.
SET
Target Rotation The anticipated time for one token cycle, including
Time (T ) allowances for high and low priority transactions, errors
TR
and GAP maintenance (set in bit times, value in ms is
calculated). Do not decrease T
value, otherwise bus communication may get interrupted.
GAP Actualisation GAP is defined as the range between this master and its
Factor successor in the logical token ring (i.e. in case more than
one active station operates on the same bus).
The master will periodically check if new active stations
have been added between address 0 and the Highest
Station Address (see below). If stations are detected,
GAP is updated.
The factor defines the checking period in multiples of the
Target Rotation Time (T
Max. Retry Limit Maximum number of retries by this master, if a station
does not properly respond to a request.
Highest Station Defines the maximum range of addresses in which this
Address (HSA) master periodically searches for newly added active
stations. If multiple masters are to operate on the same
bus, set HSA at least equal to the highest master
address.
Poll Timeout The maximum time interval that this master station may
need for the execution of a master-master function
(respond to a DPM2 request).
Data Control Time The cycle time in which this master updates its Data
Transfer List in which it keeps an overview of all slave
states, and indicates its operation mode to the associated
DP slaves.
Data
recommended value of 6*T
). Allowed values are 1 to 255.
TR
Control Time is automatically
.
WD
Section 4-3
below the suggested
TR
set to the
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