Installation manual

Publication 1747-RM001G-EN-P - November 2008
B-50 SLC Status File
S:33/13 Static Config Scan Time Timebase Selection
This bit determines the timebase used to average the Scan
time (S:23) and the maximum Scan Time (S:22). When clear,
the value contained in the average and maximum scan times
represent the number of 10 ms increments that have
occurred. When set, the value contained in the average and
maximum scan times represent the number of 1 ms
increments that have occurred. This value is clear by default
(10 ms timebase).
•••
S:33/14 Dynamic Config DTR Control Bit (Channel 0)
This bit is used to enable DTR dialing. When clear, the
channel 0 DTR signal (pin 4) is directly controlled by the
standard communication driver. When set, you can perform
DTR dialing by writing to S:33/15, DTR Force Bit.
Bit S:33/14 is examined and applied at each end of scan
(END, TND, or REF). When in Program, Suspend, or Fault
mode, DTR is enabled and remains enabled until an
auto-disconnect sequence is detected by the
communication driver.
An auto-disconnect occurs if the communication driver
detects that channel 0 CD signal (pin 1) has been absent for
more than 10 seconds or if the channel 0 DSR signal (pin 6)
has been disabled. Refer to S:5/14 Channel 0 Modem Lost
bit for more information. During an auto-disconnect, the
standard communication driver keeps the DTR disabled until
either the channel 0 DSR signal is enabled, or 5 seconds
elapse.
Note: When channel 0 is configured for DH-485, S:33/14
must be clear for proper operation.
•••
S:33/15 Dynamic Config DTR Force Bit (Channel 0)
This bit is used to force the DTR pin high or low. When
S:33/14 is set, the channel 0 DTR signal (pin 4) is applied at
each end of scan (END, TND, or REF) using the state of
S:33/15. When S:33/14 is clear, this bit has no effect on
DTR.
When S:33/15 is set, DTR is forced high. When clear
(default), DTR is forced low. When in the REM Test or REM
Run mode, this bit is only applied at end of scan (END, TND,
or REF). When in Program, Suspend, or Fault mode (or on
power up), DTR is set unless the communication driver is
performing an auto-disconnect.
•••
Table B.4 Status File Functions (Continued)
Address Classification Description Fixed
5/01
5/02 5/03 5/04 5/05