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Parameters of DB1
C.4
CP 541-Specific Parameters - Block ID COM
Meaning
Table C-7
COM Parameters
Parameter
Values
L1M
0, 1 ... 30
BSAP
0, 33 ... 52
POL
0, 1 ... 65535 Slave POL interval (send delay time)
C-8
You enter the specific parameters for the CP 541 with block identifier COM.
An explanation of the individual parameters can be found in Table C-7.
Observe the syntax of DB1 (see Appendix C.2).
L1 master address
Only for S5-115F with a non-safety-related PLC-PLC connection:
You need the parameter for the S5-115F to be able to establish a non-safety-related
PLC-PLC connection. The S5-115F can only send in non-safety-related mode to
node address 0 (SINEC L1 master).
Node address 0 is converted with parameter L1M to the station number for the L2
station to which the non-safety-related PLC-PLC connection is to established.
The CP 541 executes address conversion; the message itself is not changed.
No other PLC-PLC connection to the station specified with L1M is possible.
Only for DP connection:
Node address 0 is reserved for the DP master. In this case, together with the two pa-
rameters NWI and NWO in block DPS, it forms an indicator for a DP connection. No
further address decoding with the S5-115F can then be entered.
Broadcast service access point (SAP number for broadcast)
The SAP number specifies the service access point to be used to route a broadcast
message from the connected programmable controller to SINEC L2 and vice versa.
If a broadcast is not to be supported, assign the value 0 to BSAP. The connected pro-
grammable controller will then not be unnecessarily loaded with the evaluation of
messages which are not needed.
BSAP has the internal default 52, even with no specification in DB1.
If you have already assigned this service access point in SINEC L2, you must use
another free service access point located within the permissible value range (see Ap-
pendix G).
With the send delay time, you specify the time after which the CP 541 interrogates
the connected programmable controller for a new message.
If you assign the value 0 to POL, the connected programmable controller will no
longer be interrogated. It can then no longer send messages to the CP 541.
Enter the send delay time in multiples to 10 ms.
POL has the internal default 10 (= 100 ms), even with no specification in DB1.
Meaning
Communications Processor CP 541
EWA 4NEB 812 6188-02
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