ABB sdcs-con-4 3adt313900r1501 in stock – imported with original packaging
Technical data of product parameters
The sdcs-con-4 3adt313900r1501 maximum node address parameter should be set as low as
possible. This minimizes the amount of time used in soliciting
successors when initializing the network. If all nodes are addressed in
sequence from 0, and the maximum node address is equal to the
address of the highest addressed node, the token rotation will
improve by the amount of time required to transmit a solicit successor
packet plus the slot timeout value.
Note that this does not allow any node to be added to the network
without affecting the response time. On the other hand, since the time
required to hold an open station address is greater than the time sdcs-con-4 3adt313900r1501
required to pass a token, it can be useful to leave a temporary device
(such as a personal computer) connected if there is only one such
device. (A solicit successor packet requires the same transmission time
as the token pass, but there is an added slot timeout period.)
See your programming software user manual for the procedures to set
node addresses, processor communication rate, and maximum node
addressesThe link coupler provides a connection for each node. The isolated
link coupler electrically isolates the DH-485 communication interface
from the processor and periphe ral connections. Electrical-optical
isolation is provided to 1500V. sdcs-con-4 3adt313900r1501
The suggested DH-485 commu nication cable is Belden #3106A or
#9842 cable. The cable is jacketed and shielded with two twisted wire
pairs and a drain wire.
One pair provides a balanced signal line, and one wire of the other
pair is used for a common reference line between all nodes on the
network. The shield reduces the effect of electrostatic noise from the
industrial environment on the network communication.In normal operation with the programmable controller connected to
the link coupler, the processor powers both the link coupler and
peripheral device (DTAM, PIC) if connected through the 1747-C11
cable.
If you do not connect the processor to the link coupler, then use a
24V dc power supply to power the link coupler and peripheral
device. The 1747-AIC interface requires 85 mA at 24V dc. With a
peripheral device connected, the total current required is 190 mA at
24V dc.
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