Wieland samos PRO COMPACT - Page 53

Modbus TCP gateway
Wieland Electric GmbH | BA000970 | 11/2016 (Rev. F)
53
Gateway is master
Table 19: Configuration directive – gateway as master
Essential settings in the gateway configura-
tion (via SP-COP2-ENI)
Settings required for the PLC program
and/or in the Modbus TCP configuration
tool
Choose
Gateway writes to tag/file
and/or
Gateway reads from register
to configure
the gateway as a master.
–
Se
lect which data are to be written to the PLC
or read from it.
–
Define where the selected data in the PLC
memory are to be written to: Enter the regis-
ter address(es).
Example: "40001" and/or you can determine
from which location in the PLC memory the
sele
cted data are to be read: Enter the register
addresses.
Ensure that the addresses allocated in the
samosPRO
are available and that they contain
the data intended for the samosPRO- system.
Choose how often these data are to be
transmitted.
–
Define from and to where the data in the
Modbus-TCP network are to be read and
written: Enter the IP address and the slot
number of the PLC controller.
–
Gateway as slave
Table 20: Configuration directive – gateway as slave
Essential settings in the gateway configura-
tion (via SP-COP2-ENI)
Settings required for the PLC program
and/or in the Modbus TCP configuration
tool
Select
PLC requests
and
PLC writes
in the
gateway configuration dialog.
–
– Select which data are to be written to the
gateway or read from it.
Ensure that the PLC program writes the data
into the addresses allocated to the gateway
(see Table "
Data addressing for the SP-COP2-
ENI as recipient [ch. 6.3, p. 58] ").
NOTICE
The address settings for the Modbus TCP gateway are 1-based. Please subtract 1 from the
register address set in samosPLAN5+ for a 0-based address setting.
Example: Register 1100 corresponds to the Modbus address 1099.