CTI 2572 Installation and Operation Guide
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be used to time stamp the message. The PLC logic must copy the contents of the status words to the
command block.
NOTE
If the V memory offsets 10–13 contain erroneous data, the date will be wrong. If you encounter
Email date problems, check the values in these fields. See the SIMATIC 545/555/575
Programming Reference manual for the Status Word format.
Signed offset from GMT – This field contains the local time zone adjustment relative to Greenwich
Mean Time (GMT). See the following table for continental US Time Zones.
EST EDT CST CDT MST MDT PST PDT
-5 -4 -6 -5 -7 -6 -7 -6
7.3. Application Example
Application
The application sends E-mail to designated service personnel when a critical problem is detected in
the process. A critical problem includes loss of coolant, overheated bearing, or low air pressure.
Assumptions:
• IP Address of the local E-mail Server is 192.168.1.1. Expressed in dotted hexadecimal this value
is C0.A8.01.01.
• Recipient List is stored at V1000. It includes jdoe@ABCcompany.com and
dsmith@ABCcompany.com
• Replies will be directed to bjones@ABCcompany.com. This R
EPLY TO string is stored at V1200.
• The subject field will be stored at V1300. The subject will be used to identify the controller
detecting the problem. In this case the subject will be Zone 1, PLC A – Pump Station.
• The body text will describe the error. There are three text strings stored at V1400, V1500, and
V1600. The string “Low coolant level detected in main reservoir” begins at V1400; the string
“Bearing over temperature-motor 7” begins at V1500; and the string “Low air pressure at feed
3” begins at V1600. PLC logic will update the command block with the appropriate V memory
address.
NOTE:
The E-mail feature does not support embedding actual data values in the E-mail text.
• Contents of the PLC status words 141-144 will be copied to the command block by PLC logic.
The message is sent on 12/15/1999 at 3:10PM.
• The time zone is Eastern Standard Time (GMT – 5).
• The module is logged into the PLC starting at WX1.