Owner's manual

Table Of Contents
5.5 Process Program Management
5.5.1 Unformatted, Host-Initiated Download
Table 5-34 SECS Messages Unformatted, Host-Initiated Download
Step SECS Message Description
1. H -> E S7F1 W Host requests permission to send a multi-block Process
Program to the Equipment. If the Process Program is single-
block, this step and the next one may be skipped.
2. H <- E S7F2 The Equipment grants permission for the Host to send the
Process Program.
3. H -> E S7F3 W Host sends the process Program to the Equipment.
4. H <- E S7F4 The Equipment acknowledges receipt of the Process Program.
The Equipment checks the received Process Program for
validity. If the process Program is valid, the Equipment stores
the Process Program in its library and sends an acknowledge
code of zero in this message. If the Process Program is not
valid, or could not be stored in the library, the acknowledge
code in this message is non-zero.
5.5.2 Unformatted, Host-Initiated Upload
Table 5-35 SECS Messages Unformatted, Host-Initiated Upload
Step SECS Message Description
1. H -> E S7F5 W Host requests a Process Program from the Equipment library.
2. H <- E S7F5 The Equipment sends the Process Program. If the Process
Program does not exist, the data portion of this message is an
empty list.
5-16 SECS Scenarios