2.3 Detailed Description of the Services
23
Response
● Timer, Counter, and Comparator Number Specifications
There is more than one timer and more than one counter, and so the
leftmost two digits of the address are used to specify the applicable
timer or counter. Refer to tables inTimer and Counter Number Specifi-
cations on page 18 and Comparator Number Specifications on page 18
for the timer, counter, and comparator numbers and corresponding
addresses.
● Weekly Timers
Weekly timers are built into the ZEN. The following three operations are
possible for weekly timers by combining the day of the week, time, and
output time. These can be written using RS-485 communications.
1. Normal Operation: The bit is turned ON and OFF at the set day and
times.
2. Multiple-day Operation: The bit is turned ON and OFF at the set
days and times (operation across multiple days).
3. Pulse Operation: The bit is turn ON for the set output time at the set
start time and day.
Note: refer to 3-8 Using Weekly Timers (@) in the ZEN Programmable
Relay Operation Manual (Cat. No. Z211) for details on Weekly
Timers.
• Weekly Timer Data Format
The weekly timer data format consists of the following 12 bytes.
1. Normal Operation
2. Multiple-day Operation
The time data is as follows (BCD):
[STX]00000010100000064 270F
ON time: 100 (H'64)
OFF time: 9999 (H'270F)
+
+
+
+
+
+
2 1 1 2 2 2 2
Always 00.
Start day
End day Start time, hour
Start time, minutes
End time, hour
End time, minutes
Time data BCD
Sunday 0
Monday 1
Tuesday 2
Wednesday 3
Thursday 4
Friday 5
Saturday 6
No day designated 7
Hour 00 to 23
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