
Using the COM5434 Configurator
5-15
SIMATIC 505 PROFIBUS-FMS CP User Manual
NOTE:
If you customize the Bus Parameter Profile by selecting Custom in
the Bus Parameter Profile field and changing values in any of the fields
below
, every device on your network must have the same or a compatible
profile. Otherwise, your system cannot function properly
.
If you selected Custom in the Bus Parameter Profile field, you can change
the following parameters for your module local configuration:
Slot Time (Tslot) Enter
the maximum time, in bit times, that a master
station on your network waits for a response after sending a message.
Max. Sta. Delay (Max_Tsdr) Enter
the maximum time, in bit times, that
a responder delays before beginning a response.
Min. Sta. Delay (Min_Tsdr) Enter
the minimum time, in bit times, that a
responder delays before beginning a response.
Setup Time (Tset) Enter
the time, in bit times, between events and the
necessary reaction.
Quiet Time (Tqui) Enter
the minimum time, in bit times, that a
transmitting station must wait between sending a message and
enabling its receiver
.
Gap Factor Enter
a number that indicates when the master must
perform a gap update. For example, if you choose a gap factor of 10, the
master can hold the token for 9 turns without performing a gap update;
on the 10th turn, the master must begin to poll the gap, checking one
station each time it receives the token.
Retry Limit Enter
the number of times a master may retry a
transmission.
Token Rotation (Ttr) Enter
the anticipated time, in bit times, for one
token round on your network, including allowances for high and low
priority transactions, errors, and polling the gap.
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