Delta AH500 Manual page 256

AH5 00 Mod ule Manua l
The operation of the upper limit alarm and the operation of the lower limit alarm are as shown
below.
Lower -lower
limit value
Alar m flags
Bit 5 (Lower limit alar m)
Bit 4 (Upper limit alar m)
If the upper-upper limit value is equal to the upper-lower limit value, and the lower-upper limit
value is equal to the lower-lower limit value, the operation of the upper limit alarm and the
operation of the lower limit alarm are as shown below.
Upper -upper
limit value
Upper -lower
limit value
Lower -upper
limit value
Lower -lower
limit value
Alar m flags
Bit 5 (Lower limit alar m)
Bit 4 (Upper limit alar m)
5. Bit 4 in CR4/CR32/CR60/CR88: If bit 4 in CR4/CR32/CR60/CR88 is turned OFF, the
accumulation register counts linearly. If bit 4 in CR4/CR32/CR60/CR88 is turned ON, the
accumulation register counts circularly.
7 - 2 4
Upper -upper
limit value
Upper -lower
limit value
Cou nt cycl e
Lower -upper
limit value
OF F
OF F
O N
O FF
O FF
ON
ON
O N