Siemens CP 1243-7 LTE - Page 106

Program blocks
5.1 Program blocks for OUC
CP 1243-7 LTE
106 Operating Instructions, 04/2017, C79000-G8976-C381-03
● TMAIL_C V4.0
Sending e-mails
To transfer encrypted e-mails with this block, the precise time of day is required on the
CP. Configure the time-of-day synchronization.
For changing configuration data of the CP during runtime:
● T_CONFIG V1.0
Program controlled configuration of the CP
The program block can be found in STEP 7 in the "Instructions > Communication > Open
User Communication" window.
Connection descriptions in system data types (SDTs)
For the connection description, the blocks listed above use the parameter CONNECT (or
MAIL_ADDR_PARAM with TMAIL_C). The connection description is stored in a data block
whose structure is specified by the system data type (SDT).
Creating an SDT for the data blocks
Create the SDT required for every connection description as a data block (global DB).
You generate the SDT type by entering the name e.g. "TCON_Phone" in the "Data type" box
manually in the declaration table of block instead of selecting an entry from the "Data type"
drop-down list. The corresponding SDT is then created with its parameters.
Using the SDT
●
TCON_IP_v4
For transferring frames via TCP
●
TADDR_Param
For transferring frames via UDP
●
TCON_IP_RFC
For transferring frames via ISO-on-TCP (direct communication between two S7-1200
stations)
●
TCON_Phone
For transferring SMS messages
●
TMail_V4
For transferring e-mails addressing the e-mail server using an IPv4 address
Programming recommendation:
Set the parameter "WatchdogTime" from "MAIL_ADDR_PARAM" to a value higher than 3
minutes.
●
TMail_FQDN
For transferring e-mails addressing the e-mail server using its name (FQDN)