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Communications Capabilities
7.2.3
Connecting Several S5-115Fs with S5 PLCs of the U Range
You can also add S5 PLCs of the U range to safety-related networks of several S5-115Fs as SINEC L1
slaves ( 7.2.2).
The following PLCs can be used as slaves with the CP 530:
•
S5-115U/H
•
S5-135U
•
S5-150U
•
S5-155U/H
The following PLCs can be used as slaves without the CP 530:
•
S5-90U
•
S5-95U
•
S5-100U with CPU 102 or CPU 103
•
S5-101U (Order No. 6ES5 101-8UA13)
•
S5-115U
Data transfers with an S5 of the U range as source or destination are not safety-related.
Please note the following points:
•
Interrupt messages are prohibited
•
Safety-related broadcast messages are only possible in systems with the CPU 942-7UF15.
•
Messages from the S5-115F have a special structure. The receiving user program in the S5-U
controller must take this structure into account when reading the message.
•
Messages from S5-U controllers to an S5-115F must have the S5-115F-specific message struc-
ture. There must also be a guarantee that at least one message reaches an S5-115F within the
SINEC L1 safety time. Data traffic must be organized by the user program.
•
Messages between S5s of the U range are possible. It is not necessary here to observe either
the signature extension or the time condition with regard to the SINEC L1 safety time.
The S5-115F has the following for interslave communications:
•
A Send mailbox for each destination PLC
•
A Receive mailbox for each source PLC
The Send and Receive mailboxes are configured with COM 115F.
Coordination bytes are not manipulated.
The mailboxes can be read or overwritten at any time.
Data exchange in the U system has been retained unchanged for slave S5-115Us:
•
Common Send mailbox for all destination PLCs
•
Common Receive mailbox for all source PLCs
•
Coordination bytes (CBR and CBS).
The mailboxes are enabled each time FB 254 SYNC is called with the "SINEC L1 processing"
parameter
•
for sending a message and
•
for receiving a message
7-22
S5-115F Manual
EWA 4NEB 811 6148-02
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