Instruction manual
5. RKC COMMUNICATION PROTOCOL
IMR01H02-E3
38
Continued from the previous page.
Name Iden-
tifier
No. of
digits
Data range Factory set
value
Attri-
bute
CH
Alarm 1 !
A1
6 Process alarm, SV alarm
1
:
Same as input range
Deviation alarm
1
:
-span to +span
(Within -1999 to +9999 digits)
Control loop break alarm (
LBA
):
0.0 to 200.0 minutes
(0.0: LBA OFF)
Temperature
input:
50 or 50.0
Voltage input:
5.0
Control loop
break alarm:
8.0
R/W
2
×
Control loop break
alarm deadband
(LBD) !
N1
60 to span
However, 9999 digits or less
(0: LBD OFF)
Temperature
input: 0 or 0.0
Voltage input:
0.0
R/W
3
×
Alarm 2
4
!
A2
6 Process alarm, SV alarm
1
:
Same as input range
Deviation alarm
1
:
-span to +span
(Within -1999 to +9999 digits)
Heater break alarm 1 (HBA1):
0.0 to 100.0 A
(0.0: HBA1 OFF)
Temperature
input:
50 or 50.0
Voltage input:
5.0
Heater break
alarm 1: 0.0
R/W
5
×
Heater break
alarm 2 (HBA2)
(This item does not
use in the MA901)
N2
6 0.0 to 100.0 A
(0.0: HBA2 OFF)
0.0 R/W
6
×
1
Process alarm = Process high alarm, Process low alarm, Process high alarm (with hold action),
Process high alarm (with hold action)
SV alarm = SV high alarm, SV low alarm
Deviation alarm = Deviation high alarm, Deviation low alarm, Deviation high/low alarm, Band
alarm, Deviation high alarm (with hold action), Deviation low alarm (with hold
action), Deviation high/low alarm (with hold action)
2
When the alarm 1 is FAIL alarm, attributes become RO (read only).
3
When the alarm 1 is other than the control loop break alarm (LBA), attributes become RO (read
only).
4
When the alarm 2 corresponds to heater break alarm 1 (HBA1), becomes communication data not
corresponding to the memory area.
5
When there is not alarm 2, attribute becomes RO (read only).
When the alarm 2 is FAIL alarm, attributes become RO (read only).
6
When the alarm 2 is other than heater break alarm 1 (HBA1), attributes become RO (read only).
Continued on the next page.