Cooper Instruments & Systems DFI INFINITY Digital Force Indicator/Controller - Manual (Page 48)

Table 10.26. Alarm 1 and 2 Delay
BIT NUMBER
3/7 2/6 1/5 0/4 # OF ALARMS BEFORE
ALARM IS ACTIVE
0 0 0 0 0
0 0 0 1 1
0 0 1 0 2
0 0 1 1 3
0 1 0 0 4
0 1 0 1 5
0 1 1 0 6
0 1 1 1 7
1 0 0 0 8
1 0 0 1 9
1 0 1 0 10
1 0 1 1 11
1 1 0 0 12
1 1 0 1 13
1 1 1 0 14
1 1 1 1 15
NOTE: Bits 0 through 3 belong to Alarm 2
NOTE: Bits 4 through 7 belong to Alarm 1
EXAMPLE: The computer tells meter #15 hex to alarm at once with Alarm 1 (SP 3) but to delay for 10 readings
on Alarm 2 (SP 4): “*15W130A”, writing to EEPROM (this needs a RESET2 to be copied into RAM and
affect current alarm operation.
10.13 Setpoint 1 and 2 Hysteresis (“SP DB”)
Command Suffix “14” uses two bytes (four nibbles, or four characters) for this binary positive-only value. Both
setpoints use this same hysteresis, applied 50% on either side of the respective setpoint. This value is not kept
in RAM (only in the EEPROM), so that only “R” and “W” commands apply.
EXAMPLE: If the computer wants to know the hysteresis value stored by meter #15 hex, it sends:
“*15R14”, to which the meter replies:
“15R141A90” if it was programmed to echo with “BUS.3=1” and had decimal hysteresis of 6,800 counts.
NOTE: Maximum allowable value for hysteresis is 9999 counts.
10.14 Alarm (SP 3 AND SP 4) Hysteresis (“AL DB”)
Identical with Section 10.13, suffix “15” commands use two bytes (four characters) for this binary positive-only
value. Both alarms use this same hysteresis, applied 100% on the inactive side of the respective alarm point
(setpoint), so that you get fast alarm action and slower exit from that alarm. This value is not kept in RAM; “R”
and “W” interact with the EEPROM.
EXAMPLE: The computer sends “*15W1A90”, giving both alarms the hysteresis value of hex 6800
Counts.
NOTE: Maximum allowable value for hysteresis is 9999 counts.
10.15 Output Configuration and Display Flashing Controls (“OUT.CNF”)
Two nibbles are used to carry the “16” command-suffix information:
CF 125 INFINITY SC GUIDE 44 M1519/N/0605