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Configuration
4.7 Process access
Requirements:
● PUT/GET communication must be activated in the S7 CPU.
● The "Optimized access" option must be deactivated for data blocks of the CPU that are
accessed by the gateway.
You do not necessarily have to create a connection at the station end for the gateway to
communicate with the S7 station. The CPU reserves connection resources to unspecified
partners.
If you nevertheless want to create fixed connections, disable the "Active communication
establishment" option in the connection properties. In this case, write down the TSAP of the
connection assigned by STEP 7 for each station.
Parameters:
● IP address
IPv4 address of the station interface (CPU or CP)
● Controller family
Select the controller family of the connected station from the drop-down list:
– S7-1200/1500
– S7-300/400
● Standard TSAPs
When the option is enabled, the device uses the standard TSAPs for its local TSAP and
the remote TSAP (S7 CPU). The standard settings for the remote TSAP are intended for
the case that you have not configured a connection to the gateway in the STEP 7 project.
TSAPs are entered as hexadecimal values. For an S7-300/400, the TSAP references the
rack, the slot and the type of CPU connection resource.
Examples for an S7-300 CPU:
– TSAP: 11.02
– TSAP: 03.02
64
Rack 0, slot 2, connection resource 11
Rack 0, slot 2, connection resource 03
Connection configured at one end (Local end point "One-way") Connection partner
"unspecified"; the gateway as connection partner is not configured.
A connection resource for a connection configured at one end with unspecified partner
has the value 03.
A connection resource for a connection configured at both ends with unspecified
partner has the range of values 0x10...0xDF.
Recommendation for station configuration:
Use the configuration 0/0 or 0/1 for the rack/slot.
Operating Instructions, 10/2019, C79000-G8976-C503-02
SIMATIC CC7
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