Owner's manual

Equipment-to-Host Messages 3-35
3.10 Error Messages
The Equipment provides standard Stream 9 messages to report SECS-I errors. Refer to 5.7 SECS Error
Messages for detailed description of these messages:
S9F1 Unrecognized Device ID
S9F3 Unrecognized Stream
S9F5 Unrecognized Function
S9F7 Invalid Data
S9F9 Transaction Timeout
S9F11 Data Too Long
FmNT can reject a primary message received from the Host as incorrectly formatted for SECS-II (invalid
data, or data too long).
3.11 Clock
The Equipment contains Clock/Calendar hardware, by which it knows the current date and time. This
allows the following:
• The Host can send S2F31 to set the Equipment’s Clock/Calendar hardware.
• The Host can send S2F17 to read the Equipment’s Clock/Calendar hardware.
• The Operator can initiate a Date/Time request from the Host. This is done through the
SECS/GEM Setup dialog box (Control tab).
3.11.1 Related Variables
Table 3-23 lists the relevant clock variables (SVs, ECs, or DVs). For a complete description of these
variables, refer to Appendix A.
Table 3-23 Clock Variables
Variable Name VID
CLOCK 27
When time update messages from the Host are not arriving, a time update request to the Host shall be
made approximately once per hour until the Host resumes time update messages.