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S5-115F Manual
7.3.2
Programmer Connected to SINEC L1 Master
You can service the programmer from the master via
•
a single-channel SINEC L1 LAN
or
•
a two-channel SINEC L1 LAN
You need a SINEC L1 LAN connected to all subunits to enable the operator to perform both read
and write functions.
Proceed as follows if you want to operate the subunits with a programmer via the SINEC L1 master
in the case of a single-channel SINEC L1 LAN:
•
Configure a two-channel SINEC L1 LAN because the configuration of a single-channel SINEC L1
LAN is reserved for direct programmer operation of subunit A.
•
Implement only a single-channel SINEC L1 LAN with subunit A.
Proceed as follows in the case of two-channel SINEC L1 LANs:
•
Configure a two-channel SINEC L1 LAN
•
Implement SINEC L1 LAN A and B.
SINEC L1 LAN A is disabled during programmer operation.
However, data traffic continues uninterrupted on SINEC L1 LAN B since the two-channel
SINEC L1 LAN is fault-tolerant.
EWA 4NEB 811 6148-02
Communications Capabilities
7-33
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