100/180 mm PAPERLESS GRAPHIC RECORDER: USER GUIDE
HA028910
Issue 13 Sep 16
User Guide
Page 136
4.3.11 MATHS OPTION (Cont.)
MATHS CHANNEL RUN-TIME DATA
This table show addresses for maths channel 1 run-time data. Generally: channel N address = channel 1
a 3(N-1) (decimal)
CHANNEL 1
Ch1 value
Current process value (PV) Scaled
Read/Write A2BA (41658) 1
Ch1 status
Channel status
Enum
Read only
A2BB (41659)
1
0 = Good PV
5 = Ranging error
1 = Channel off
6 = Overfl ow
2 = Over range
7 = Bad PV
3 = Under range
8 = No data
4 = Hardware error
Ch1 Alarms
Alarm information
Uint16
-
A2BC (41660)
1
Bit 0:0 = Alarm 1 inactive; 1 = Alarm 1 active
Read only
Bit 1: 0 = No alarm 1 Ack. required; 1 = Ack. required
Read only
Bit 2: 1 = Acknowledge alarm 1
Read/Write
Bit 3: Spare
Bit 4: 0 = Alarm 2 inactive; 1 = Alarm 2 active
Read only
Bit 5: 0 = No Alarm 2 Ack. required; 1 = Ack. required
Read only
Bit 6: 1 = Acknowledge alarm 2
Read/Write
Bit 7: Spare
Bit 8: 0 = Alarm 3 inactive; 1 = Alarm 3 active
Read only
Bit 9: 0 = No alarm 3 Ack. required; 1 = Ack. required
Read only
Bit 10: 1 = Acknowledge alarm 3
Read/Write
Bit 11: Spare
Bit 12: 0 = Alarm 4 inactive; 1 = Alarm 4 active
Read only
Bit 13: 0 = No Alarm 4 Ack. required; 1 = Ack. required
Read only
Bit 14: 1 = Acknowledge alarm 4
Read/Write
Bit 15: Spare
IEEE 32-BIT CHANNEL CONFIGURATION DATA
The following table shows addresses for the specifi ed 32-bit fl oating-point values, for Maths channel 1.
Generally, Parameter address for channel N = Parameter address for channel 1 + 36(N-1) (decimal).
CHANNEL 1
Ch1 span high
Upper span value (Display full scale)
Float
Read only
DF73 (57203)
2
Ch1 span low
Lower span value (display ‘zero’)
Float
Read only
DF75 (57205)
2
Ch1 Zone high
Zone upper value (% of ‘chart’ width)
Float
Read only
DF77 (57207)
2
Ch1 Zone low
Zone lower value (% of ‘chart’ width)
Float
Read only
DF79 (57209)
2
Ch1 Alarm 1 setpoint
Trigger setpoint for alarm 1 (see note)
Float
Read/Write DF7B (57211)
2
Ch1 Alarm 2 setpoint
Trigger setpoint for alarm 2 (see note)
Float
Read/Write DF7D (57213)
2
Ch 1 Alarm 3 setpoint
Trigger setpoint for alarm 3 (see note)
Float
Read/Write DF7F (57215)
2
Ch 1 Alarm 4 setpoint
Trigger setpoint for alarm 4 (see note)
Float
Read/Write DF81 (57217)
2
Spare
DF83 (57219)
20
Parameter
Description
Type
Access
Start Addr.
Register
Name
Hex (Dec)
Length
Parameter
Description
Type
Access
Start Addr.
Register
Name
Hex (Dec)
Length
Note: If the setpoint source for an alarm (
section 4.3.3
) is set to anything other than ‘Constant’, the
value returned is the previously confi gured constant value.
