13-60
Testing and Maintenance
BE1-951
D2843-10.vsd
02-02-99
B L K
INI
0
1
0
0
1
1
X
X
X
t2
t1
t1
t1
x 6 2
t1
t2
Figure 13-5. Mode 3 (One-Shot Retriggerable)
Timing Example
Step 3 Use the RS-LGC command to obtain an SER report and verify that the following actions were
logged. These events are illustrated in the timing diagram of Figure 13-5.
After a 343 FALSE-TRUE-FALSE pulse action was logged, the 62 timer output did not go TRUE
because of a second FALSE to TRUE initiate signal action.
Approximately 15 seconds after the second 343 FALSE to TRUE initiate signal, the 62 timer
output went TRUE. The timer output went FALSE when the third FALSE to TRUE initiate signal
forced the 62 timer (T1) to restart.
Fifteen seconds after the third 343 FALSE to TRUE initiate signal, the 62 timer output went
TRUE again and then went FALSE after the duration timer (T2) expired 20 seconds later.
Mode 4 - Oscillator
Because this operating mode is not intended for general use, no testing procedure is available. Information
about Mode 4 is available in Section 4, Protection and Control, General Purpose Logic Timers.
Mode 5 - Integrating
Step 1 Prepare the 62 timer for Mode 5 testing by transmitting the commands in Table 13-96.
Table 13-96. 62 Mode 5 Test Commands
Command
Purpose
A=
Gain write access
SL-N=NONE
Zero out custom logic settings.
Overwrite with logic=none settings.
Y
Confirm overwrite
SL-N=T62
Sets T62 as custom logic name
SL-43=2
Enables 43 switch ON/OFF mode
SN-43=62_INI,PU,DO
Name switch 43 to make SER easier to read.
SL-62=5,43,0
Enables 62 integrating mode, 43 initiate, no
blocking
S0-62=15s,5s
Sets T1 at 15 seconds
Sets T2 at 5 seconds
EXIT;Y
Exit and save settings.
